truffle: src/share/vm/memory/metaspace.cpp annotate

annotate src/share/vm/memory/metaspace.cpp @ 17935:7384f6a12fc1

8038212: Method::is_valid_method() check has performance regression impact for stackwalking Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint. Reviewed-by: mgerdin, mgronlun, hseigel, stefank

author	coleenp
date	Thu, 15 May 2014 18:23:26 -0400
parents	270d7cb38f40
children	78bbf4d43a14

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
8712 3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8040 diff changeset	2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	24 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	25 #include "gc_interface/collectedHeap.hpp"
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	26 #include "memory/allocation.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	27 #include "memory/binaryTreeDictionary.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	28 #include "memory/freeList.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 #include "memory/collectorPolicy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	31 #include "memory/freeList.hpp"
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	32 #include "memory/gcLocker.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	33 #include "memory/metachunk.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 #include "memory/metaspace.hpp"
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	35 #include "memory/metaspaceGCThresholdUpdater.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "memory/metaspaceShared.hpp"
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	37 #include "memory/metaspaceTracer.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 #include "memory/resourceArea.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 #include "memory/universe.hpp"
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	40 #include "runtime/atomic.inline.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 #include "runtime/globals.hpp"
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	42 #include "runtime/init.hpp"
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	43 #include "runtime/java.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44 #include "runtime/mutex.hpp"
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	45 #include "runtime/orderAccess.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	46 #include "services/memTracker.hpp"
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	47 #include "services/memoryService.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48 #include "utilities/copy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	49 #include "utilities/debug.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	50
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	51 typedef BinaryTreeDictionary<Metablock, FreeList<Metablock> > BlockTreeDictionary;
ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	52 typedef BinaryTreeDictionary<Metachunk, FreeList<Metachunk> > ChunkTreeDictionary;
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	53
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	54 // Set this constant to enable slow integrity checking of the free chunk lists
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	55 const bool metaspace_slow_verify = false;
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	56
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	57 size_t const allocation_from_dictionary_limit = 4 * K;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	59 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	61 size_t Metaspace::_compressed_class_space_size;
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	62 const MetaspaceTracer* Metaspace::_tracer = NULL;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	63
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	65 enum ChunkIndex {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	66 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	67 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	68 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	69 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	70 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	71 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	72 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	73 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	74
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	75 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	76 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	77 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	78 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	79 SmallChunk = 512,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	80 ClassMediumChunk = 4 * K,
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	81 MediumChunk = 8 * K
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	85 assert(i < NumberOfInUseLists, "Out of bound");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	89 volatile intptr_t MetaspaceGC::_capacity_until_GC = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	93 typedef class FreeList<Metachunk> ChunkList;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95 // Manages the global free lists of chunks.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	96 class ChunkManager : public CHeapObj<mtInternal> {
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	97 friend class TestVirtualSpaceNodeTest;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 // Free list of chunks of different sizes.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	100 // SpecializedChunk
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 // HumongousChunk
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	104 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	105
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	106 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	107 ChunkTreeDictionary _humongous_dictionary;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	120 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	121
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	124 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 size_t sum_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127 void locked_verify_free_chunks_total();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	128 void slow_locked_verify_free_chunks_total() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	129 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	130 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	131 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	132 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133 void locked_verify_free_chunks_count();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	134 void slow_locked_verify_free_chunks_count() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	135 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	136 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	137 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	138 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	143 ChunkManager(size_t specialized_size, size_t small_size, size_t medium_size)
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	144 : _free_chunks_total(0), _free_chunks_count(0) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	145 _free_chunks[SpecializedIndex].set_size(specialized_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	146 _free_chunks[SmallIndex].set_size(small_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	147 _free_chunks[MediumIndex].set_size(medium_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	148 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	150 // add or delete (return) a chunk to the global freelist.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	153 // Map a size to a list index assuming that there are lists
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	154 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	155 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	156
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	157 // Remove the chunk from its freelist. It is
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	158 // expected to be on one of the _free_chunks[] lists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	159 void remove_chunk(Metachunk* chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	160
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	161 // Add the simple linked list of chunks to the freelist of chunks
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	162 // of type index.
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	163 void return_chunks(ChunkIndex index, Metachunk* chunks);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	164
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165 // Total of the space in the free chunks list
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	166 size_t free_chunks_total_words();
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	167 size_t free_chunks_total_bytes();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	168
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	169 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	170 size_t free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	171
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	172 void inc_free_chunks_total(size_t v, size_t count = 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	174 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	176 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	177 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	178 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	183 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184
12906 94c0343b1887 8026715: Remove the MetaDataDeallocateALot develop flag stefank parents: 12902 diff changeset	185 // Remove from a list by size. Selects list based on size of chunk.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187
17771 9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	188 #define index_bounds_check(index) \
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	189 assert(index == SpecializedIndex \|\| \
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	190 index == SmallIndex \|\| \
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	191 index == MediumIndex \|\| \
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	192 index == HumongousIndex, err_msg("Bad index: %d", (int) index))
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	193
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	194 size_t num_free_chunks(ChunkIndex index) const {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	195 index_bounds_check(index);
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	196
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	197 if (index == HumongousIndex) {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	198 return _humongous_dictionary.total_free_blocks();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	199 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	200
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	201 ssize_t count = _free_chunks[index].count();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	202 return count == -1 ? 0 : (size_t) count;
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	203 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	204
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	205 size_t size_free_chunks_in_bytes(ChunkIndex index) const {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	206 index_bounds_check(index);
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	207
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	208 size_t word_size = 0;
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	209 if (index == HumongousIndex) {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	210 word_size = _humongous_dictionary.total_size();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	211 } else {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	212 const size_t size_per_chunk_in_words = _free_chunks[index].size();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	213 word_size = size_per_chunk_in_words * num_free_chunks(index);
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	214 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	215
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	216 return word_size * BytesPerWord;
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	217 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	218
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	219 MetaspaceChunkFreeListSummary chunk_free_list_summary() const {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	220 return MetaspaceChunkFreeListSummary(num_free_chunks(SpecializedIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	221 num_free_chunks(SmallIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	222 num_free_chunks(MediumIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	223 num_free_chunks(HumongousIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	224 size_free_chunks_in_bytes(SpecializedIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	225 size_free_chunks_in_bytes(SmallIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	226 size_free_chunks_in_bytes(MediumIndex),
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	227 size_free_chunks_in_bytes(HumongousIndex));
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	228 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	229
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	232 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	233 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	234 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	235 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	236 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 void locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	238 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	239 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	240 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	241 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	242 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	247
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	248 void print_on(outputStream* st) const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 // Used to manage the free list of Metablocks (a block corresponds
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	252 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	254 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	255
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	256 // Only allocate and split from freelist if the size of the allocation
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	257 // is at least 1/4th the size of the available block.
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	258 const static int WasteMultiplier = 4;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	259
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	261 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	264 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	268 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	269 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	270
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	271 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	272 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	273 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	274 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	275 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	276 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	277 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	278
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	279 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	280 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	282 // A VirtualSpaceList node.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	292 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	293 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	294 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	295 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	297 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	298 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	299 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	300
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	301 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	302 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	303 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	304
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	305 // Committed but unused space in the virtual space
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	306 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	307 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	308
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	310 VirtualSpaceNode(ReservedSpace rs) : _top(NULL), _next(NULL), _rs(rs), _container_count(0) {}
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	312
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	313 // Convenience functions for logical bottom and end
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	314 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	315 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	316
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	317 bool contains(const void* ptr) { return ptr >= low() && ptr < high(); }
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	318
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	319 size_t reserved_words() const { return _virtual_space.reserved_size() / BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	320 size_t committed_words() const { return _virtual_space.actual_committed_size() / BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	321
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	322 bool is_pre_committed() const { return _virtual_space.special(); }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	323
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	325 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	326 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	330 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	331
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	332 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	333 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	334 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	336 // Returns true if "word_size" is available in the VirtualSpace
13439 fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	337 bool is_available(size_t word_size) { return word_size <= pointer_delta(end(), _top, sizeof(MetaWord)); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	338
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	339 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	340 void inc_top(size_t word_size) { _top += word_size; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	341
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	342 uintx container_count() { return _container_count; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	343 void inc_container_count();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	344 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	345 #ifdef ASSERT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	346 uint container_count_slow();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	347 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	348 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	349
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	350 // used and capacity in this single entry in the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	351 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	352 size_t capacity_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	353
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	354 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	355
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	356 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	357 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	358
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	359 // Allocate a chunk from the virtual space and return it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	360 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	361
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	362 // Expands/shrinks the committed space in a virtual space. Delegates
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	363 // to Virtualspace
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	364 bool expand_by(size_t min_words, size_t preferred_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	365
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	366 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	367 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	368 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	369
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	370 // If an allocation doesn't fit in the current node a new node is created.
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	371 // Allocate chunks out of the remaining committed space in this node
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	372 // to avoid wasting that memory.
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	373 // This always adds up because all the chunk sizes are multiples of
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	374 // the smallest chunk size.
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	375 void retire(ChunkManager* chunk_manager);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	376
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	377 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	378 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	379 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	380 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	381
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	382 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	383 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	384
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	385 #define assert_is_ptr_aligned(ptr, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	386 assert(is_ptr_aligned(ptr, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	387 err_msg(PTR_FORMAT " is not aligned to " \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	388 SIZE_FORMAT, ptr, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	389
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	390 #define assert_is_size_aligned(size, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	391 assert(is_size_aligned(size, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	392 err_msg(SIZE_FORMAT " is not aligned to " \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	393 SIZE_FORMAT, size, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	394
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	395
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	396 // Decide if large pages should be committed when the memory is reserved.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	397 static bool should_commit_large_pages_when_reserving(size_t bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	398 if (UseLargePages && UseLargePagesInMetaspace && !os::can_commit_large_page_memory()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	399 size_t words = bytes / BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	400 bool is_class = false; // We never reserve large pages for the class space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	401 if (MetaspaceGC::can_expand(words, is_class) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	402 MetaspaceGC::allowed_expansion() >= words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	403 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	404 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	405 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	406
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	407 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	408 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	409
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 // byte_size is the size of the associated virtualspace.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	411 VirtualSpaceNode::VirtualSpaceNode(size_t bytes) : _top(NULL), _next(NULL), _rs(), _container_count(0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	412 assert_is_size_aligned(bytes, Metaspace::reserve_alignment());
8752 82f49e8e2c28 8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity() zgu parents: 8712 diff changeset	413
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	414 // This allocates memory with mmap. For DumpSharedspaces, try to reserve
91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	415 // configurable address, generally at the top of the Java heap so other
91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	416 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	418 bool large_pages = false; // No large pages when dumping the CDS archive.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	419 char* shared_base = (char)align_ptr_up((char)SharedBaseAddress, Metaspace::reserve_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	420
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	421 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages, shared_base, 0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	422 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	423 assert(shared_base == 0 \|\| _rs.base() == shared_base, "should match");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	425 // Get a mmap region anywhere if the SharedBaseAddress fails.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	426 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	430 bool large_pages = should_commit_large_pages_when_reserving(bytes);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	431
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	432 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	435 if (_rs.is_reserved()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	436 assert(_rs.base() != NULL, "Catch if we get a NULL address");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	437 assert(_rs.size() != 0, "Catch if we get a 0 size");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	438 assert_is_ptr_aligned(_rs.base(), Metaspace::reserve_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	439 assert_is_size_aligned(_rs.size(), Metaspace::reserve_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	440
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	441 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	442 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	445 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	446 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	447 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	448 while (chunk < invalid_chunk ) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	449 assert(chunk->is_tagged_free(), "Should be tagged free");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	450 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	451 chunk_manager->remove_chunk(chunk);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	452 assert(chunk->next() == NULL &&
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	453 chunk->prev() == NULL,
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	454 "Was not removed from its list");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	455 chunk = (Metachunk*) next;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	456 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	457 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	458
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	459 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	460 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	461 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	462 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	463 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	464 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	465 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	466 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	467 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	468 // counted.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	469 if (!chunk->is_tagged_free()) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	470 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	471 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	472 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	473 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	474 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	475 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	476 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	477
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	491 // Is this VirtualSpaceList used for the compressed class space
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	492 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	493
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	494 // Sum of reserved and committed memory in the virtual spaces
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	495 size_t _reserved_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	496 size_t _committed_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	497
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	498 // Number of virtual spaces
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 _virtual_space_list = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	512 void link_vs(VirtualSpaceNode* new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 // Get another virtual space and add it to the list. This
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 // is typically prompted by a failed attempt to allocate a chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 // and is typically followed by the allocation of a chunk.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	517 bool create_new_virtual_space(size_t vs_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	519 // Chunk up the unused committed space in the current
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	520 // virtual space and add the chunks to the free list.
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	521 void retire_current_virtual_space();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	522
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	527 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	528
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	529 Metachunk* get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	530 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	531 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	532
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	533 bool expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	534 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	535 size_t preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	536
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	537 bool expand_by(size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	538 size_t preferred_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	546 bool initialization_succeeded() { return _virtual_space_list != NULL; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	548 size_t reserved_words() { return _reserved_words; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	549 size_t reserved_bytes() { return reserved_words() * BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	550 size_t committed_words() { return _committed_words; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	551 size_t committed_bytes() { return committed_words() * BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	552
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	553 void inc_reserved_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	554 void dec_reserved_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	555 void inc_committed_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	556 void dec_committed_words(size_t v);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	557 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	558 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	559
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	560 bool contains(const void* ptr);
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	561
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	562 // Unlink empty VirtualSpaceNodes and free it.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	563 void purge(ChunkManager* chunk_manager);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	565 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	582 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	587 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	591 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	603 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	607
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	608 // protects allocations
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	611 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	612 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	613
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 // are done from the current chunk. The list is used for deallocating
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	617 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 // Sum of all space in allocated chunks
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	625 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	626
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	627 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	628 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	629 size_t _allocated_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 // are assumed to be in chunks in use by the SpaceManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633 // and all chunks in use by a SpaceManager are freed when
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635 BlockFreelist _block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	642 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	644 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	645 void set_chunks_in_use(ChunkIndex index, Metachunk* v) {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	646 _chunks_in_use[index] = v;
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	647 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	648
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	649 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	650 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	651 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	652
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	653 Metaspace::MetadataType mdtype() { return _mdtype; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	654
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	655 VirtualSpaceList* vs_list() const { return Metaspace::get_space_list(_mdtype); }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	656 ChunkManager* chunk_manager() const { return Metaspace::get_chunk_manager(_mdtype); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	662
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	663 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	664
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	665 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	666 void add_chunk(Metachunk* v, bool make_current);
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	667 void retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	668
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	669 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	670
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	671 const char* chunk_size_name(ChunkIndex index) const;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	672
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	673 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	674 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	675
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	677 SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	678 Mutex* lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	680
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	681 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	682 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	685 bool is_class() { return _mdtype == Metaspace::ClassType; }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	686
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687 // Accessors
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	688 size_t specialized_chunk_size() { return (size_t) is_class() ? ClassSpecializedChunk : SpecializedChunk; }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	689 size_t small_chunk_size() { return (size_t) is_class() ? ClassSmallChunk : SmallChunk; }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	690 size_t medium_chunk_size() { return (size_t) is_class() ? ClassMediumChunk : MediumChunk; }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	691 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	692
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	693 size_t smallest_chunk_size() { return specialized_chunk_size(); }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	694
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	695 size_t allocated_blocks_words() const { return _allocated_blocks_words; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	696 size_t allocated_blocks_bytes() const { return _allocated_blocks_words * BytesPerWord; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	697 size_t allocated_chunks_words() const { return _allocated_chunks_words; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	698 size_t allocated_chunks_count() const { return _allocated_chunks_count; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	699
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	700 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	704 // Increment the per Metaspace and global running sums for Metachunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	705 // by the given size. This is used when a Metachunk to added to
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	706 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	707 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	708 // Increment the per Metaspace and global running sums Metablocks by the given
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	709 // size. This is used when a Metablock is allocated.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	710 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	711 // Delete the portion of the running sums for this SpaceManager. That is,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	712 // the globals running sums for the Metachunks and Metablocks are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	713 // decremented for all the Metachunks in-use by this SpaceManager.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	714 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	715
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	716 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	717 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	718 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	719 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	720
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	728 size_t sum_count_in_chunks_in_use(ChunkIndex i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	729
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	730 Metachunk* get_new_chunk(size_t word_size, size_t grow_chunks_by_words);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	731
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	732 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	733 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	734 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	735
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	737 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	740 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	741
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	742 // Based on the allocation size and a minimum chunk size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	743 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 size_t calc_chunk_size(size_t allocation_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	746 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	747 // Gets a new chunk (may require getting a new virtual space),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	749 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	751 // Notify memory usage to MemoryService.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	752 void track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	753
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 void locked_print_chunks_in_use_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	761 void verify_chunk_size(Metachunk* chunk);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	762 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	764 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	765 #endif
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	766
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	767 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	768 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	769
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	770 size_t raw_bytes_size = MAX2(byte_size, sizeof(Metablock));
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	771 raw_bytes_size = align_size_up(raw_bytes_size, Metachunk::object_alignment());
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	772
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	773 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	774 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	775
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	776 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	777 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	781
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	790 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	791 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	792 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	793 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	794 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	795 " container_count_slow() " SIZE_FORMAT,
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	796 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	797 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	798
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	799 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	800 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	801 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	802 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	803
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	804 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	805 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	806 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	807 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	808 " container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	809 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	810 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	811
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	815
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	816 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	817 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	818 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	822 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	823 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	825 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	826 Metablock* free_chunk = ::new (p) Metablock(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	827 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	828 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	829 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	830 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	831 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	832
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	833 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	834 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	836 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	838 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	839 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	840 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	841 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	842
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	843 Metablock* free_block =
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	844 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	845 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	846 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	847 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	848
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	849 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	850 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	851 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	852 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	853 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	854
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	855 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	856 assert(block_size >= word_size, "Incorrect size of block from freelist");
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	857 const size_t unused = block_size - word_size;
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	858 if (unused >= TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	859 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	860 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	861
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	862 return new_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	864
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	865 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	870 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	871
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	876 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	877 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	878 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	879 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	884 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	887 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	888 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	891 size_t VirtualSpaceNode::free_words_in_vs() const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	892 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	893 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 // This interface is also used internally for debugging. Not all
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	898 Metachunk* VirtualSpaceNode::take_from_committed(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	899 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	900 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901 assert(chunk_limit != NULL, "Not safe to call this method");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	903 // The virtual spaces are always expanded by the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	904 // commit granularity to enforce the following condition.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	905 // Without this the is_available check will not work correctly.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	906 assert(_virtual_space.committed_size() == _virtual_space.actual_committed_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	907 "The committed memory doesn't match the expanded memory.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	908
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	909 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	910 if (TraceMetadataChunkAllocation) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	911 gclog_or_tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912 // Dump some information about the virtual space that is nearly full
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	913 print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	914 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	917
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	918 // Take the space (bump top on the current virtual space).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	919 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	920
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	921 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	922 Metachunk* result = ::new (chunk_limit) Metachunk(chunk_word_size, this);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	923 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	924 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927 // Expand the virtual space (commit more of the reserved space)
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	928 bool VirtualSpaceNode::expand_by(size_t min_words, size_t preferred_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	929 size_t min_bytes = min_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	930 size_t preferred_bytes = preferred_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	931
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	932 size_t uncommitted = virtual_space()->reserved_size() - virtual_space()->actual_committed_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	933
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	934 if (uncommitted < min_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	935 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	936 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	937
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	938 size_t commit = MIN2(preferred_bytes, uncommitted);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	939 bool result = virtual_space()->expand_by(commit, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	940
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	941 assert(result, "Failed to commit memory");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	942
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	943 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946 Metachunk* VirtualSpaceNode::get_chunk_vs(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	948 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	949 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	950 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	951 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	952 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	961 // These are necessary restriction to make sure that the virtual space always
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	962 // grows in steps of Metaspace::commit_alignment(). If both base and size are
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	963 // aligned only the middle alignment of the VirtualSpace is used.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	964 assert_is_ptr_aligned(_rs.base(), Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	965 assert_is_size_aligned(_rs.size(), Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	966
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	967 // ReservedSpaces marked as special will have the entire memory
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	968 // pre-committed. Setting a committed size will make sure that
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	969 // committed_size and actual_committed_size agrees.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	970 size_t pre_committed_size = _rs.special() ? _rs.size() : 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	971
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	972 bool result = virtual_space()->initialize_with_granularity(_rs, pre_committed_size,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	973 Metaspace::commit_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974 if (result) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	975 assert(virtual_space()->committed_size() == virtual_space()->actual_committed_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	976 "Checking that the pre-committed memory was registered by the VirtualSpace");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	977
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	978 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	980 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	981
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	982 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	983 err_msg("Reserved start was not set properly " PTR_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	984 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	985 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	986 err_msg("Reserved size was not set properly " SIZE_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	987 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	988 _rs.size() / BytesPerWord));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	989 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	990
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	991 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	992 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	993
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	994 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	995 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	996 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	997 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	998 st->print_cr(" space @ " PTR_FORMAT " " SIZE_FORMAT "K, %3d%% used "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	999 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1000 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1001 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1002 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1003 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1004 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1005 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1006
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	1007 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1008 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1009 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1010 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1011 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	1012 #endif // ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1013
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1014 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1015 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1016
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1017 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1018 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1019 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1020 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1021 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1022 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1023 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1024
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1025 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 assert_lock_strong(SpaceManager::expand_lock());
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1027 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1028 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1029 void VirtualSpaceList::dec_reserved_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1030 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1031 _reserved_words = _reserved_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1033
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1034 #define assert_committed_below_limit() \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1035 assert(MetaspaceAux::committed_bytes() <= MaxMetaspaceSize, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1036 err_msg("Too much committed memory. Committed: " SIZE_FORMAT \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1037 " limit (MaxMetaspaceSize): " SIZE_FORMAT, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1038 MetaspaceAux::committed_bytes(), MaxMetaspaceSize));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1039
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1040 void VirtualSpaceList::inc_committed_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1041 assert_lock_strong(SpaceManager::expand_lock());
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1042 _committed_words = _committed_words + v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1043
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1044 assert_committed_below_limit();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1045 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1046 void VirtualSpaceList::dec_committed_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1047 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1048 _committed_words = _committed_words - v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1049
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1050 assert_committed_below_limit();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1051 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1052
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1053 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1054 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1055 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1056 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1057 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1058 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1059 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1060 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1061
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1062 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1063 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1064 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1065 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1066 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1067 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1068 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1069 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1070
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1071 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1072 dec_free_chunks_total(chunk->word_size());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1073 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1074
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1075 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1076 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1077 // the node from their respective freelists.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1078 void VirtualSpaceList::purge(ChunkManager* chunk_manager) {
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1079 assert(SafepointSynchronize::is_at_safepoint(), "must be called at safepoint for contains to work");
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1080 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1081 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1082 // list is being changed and a straightforward use of an iterator is not safe.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1083 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1084 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1085 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1086 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1087 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1088 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1089 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1090 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1091 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1092 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1093 if (prev_vsl == vsl) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1094 // This is the case of the current node being the first node.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1095 assert(vsl == virtual_space_list(), "Expected to be the first node");
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1096 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1097 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1098 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1099 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1100
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1101 vsl->purge(chunk_manager);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1102 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1103 dec_committed_words(vsl->committed_words());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1104 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1105 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1106 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1107 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1108 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1109 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1110 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1111 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1112 if (purged_vsl != NULL) {
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1113 // List should be stable enough to use an iterator here.
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1114 VirtualSpaceListIterator iter(virtual_space_list());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1115 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1116 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1117 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1118 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1119 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1120 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1121 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1122
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1123
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1124 // This function looks at the mmap regions in the metaspace without locking.
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1125 // The chunks are added with store ordering and not deleted except for at
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1126 // unloading time during a safepoint.
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1127 bool VirtualSpaceList::contains(const void* ptr) {
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1128 // List should be stable enough to use an iterator here because removing virtual
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1129 // space nodes is only allowed at a safepoint.
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1130 VirtualSpaceListIterator iter(virtual_space_list());
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1131 while (iter.repeat()) {
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1132 VirtualSpaceNode* vsn = iter.get_next();
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1133 if (vsn->contains(ptr)) {
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1134 return true;
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1135 }
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1136 }
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1137 return false;
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1138 }
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1139
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1140 void VirtualSpaceList::retire_current_virtual_space() {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1141 assert_lock_strong(SpaceManager::expand_lock());
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1142
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1143 VirtualSpaceNode* vsn = current_virtual_space();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1144
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1145 ChunkManager* cm = is_class() ? Metaspace::chunk_manager_class() :
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1146 Metaspace::chunk_manager_metadata();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1147
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1148 vsn->retire(cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1149 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1150
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1151 void VirtualSpaceNode::retire(ChunkManager* chunk_manager) {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1152 for (int i = (int)MediumIndex; i >= (int)ZeroIndex; --i) {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1153 ChunkIndex index = (ChunkIndex)i;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1154 size_t chunk_size = chunk_manager->free_chunks(index)->size();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1155
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1156 while (free_words_in_vs() >= chunk_size) {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1157 DEBUG_ONLY(verify_container_count();)
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1158 Metachunk* chunk = get_chunk_vs(chunk_size);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1159 assert(chunk != NULL, "allocation should have been successful");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1160
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1161 chunk_manager->return_chunks(index, chunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1162 chunk_manager->inc_free_chunks_total(chunk_size);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1163 DEBUG_ONLY(verify_container_count();)
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1164 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1165 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1166 assert(free_words_in_vs() == 0, "should be empty now");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1167 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1168
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1169 VirtualSpaceList::VirtualSpaceList(size_t word_size) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1170 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1171 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1172 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1173 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1174 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1175 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1176 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1177 Mutex::_no_safepoint_check_flag);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1178 create_new_virtual_space(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1179 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1180
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1181 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1182 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1183 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1184 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1185 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1186 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1187 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1188 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1189 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1190 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1191 bool succeeded = class_entry->initialize();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1192 if (succeeded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1193 link_vs(class_entry);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1194 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1195 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1196
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1197 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1198 return virtual_space_list()->free_words_in_vs() * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1199 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1200
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1201 // Allocate another meta virtual space and add it to the list.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1202 bool VirtualSpaceList::create_new_virtual_space(size_t vs_word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1203 assert_lock_strong(SpaceManager::expand_lock());
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1204
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1205 if (is_class()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1206 assert(false, "We currently don't support more than one VirtualSpace for"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1207 " the compressed class space. The initialization of the"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1208 " CCS uses another code path and should not hit this path.");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1209 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1210 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1211
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1212 if (vs_word_size == 0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1213 assert(false, "vs_word_size should always be at least _reserve_alignment large.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1214 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1215 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1216
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1217 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1218 size_t vs_byte_size = vs_word_size * BytesPerWord;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1219 assert_is_size_aligned(vs_byte_size, Metaspace::reserve_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1220
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1221 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1222 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1223 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1224 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1225 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1226 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1227 assert(new_entry->reserved_words() == vs_word_size,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1228 "Reserved memory size differs from requested memory size");
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1229 // ensure lock-free iteration sees fully initialized node
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	1230 OrderAccess::storestore();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1231 link_vs(new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1232 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1233 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1234 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1235
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1236 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1237 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1238 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1239 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1240 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1242 set_current_virtual_space(new_entry);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1243 inc_reserved_words(new_entry->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1244 inc_committed_words(new_entry->committed_words());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1245 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1246 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1247 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1248 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1249 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1250 VirtualSpaceNode* vsl = current_virtual_space();
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1251 vsl->print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1252 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1253 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1254
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1255 bool VirtualSpaceList::expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1256 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1257 size_t preferred_words) {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1258 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1259
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1260 bool result = node->expand_by(min_words, preferred_words);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1261
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1262 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1263
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1264 // after and before can be the same if the memory was pre-committed.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1265 assert(after >= before, "Inconsistency");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1266 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1267
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1268 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1269 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1270
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1271 bool VirtualSpaceList::expand_by(size_t min_words, size_t preferred_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1272 assert_is_size_aligned(min_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1273 assert_is_size_aligned(preferred_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1274 assert(min_words <= preferred_words, "Invalid arguments");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1275
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1276 if (!MetaspaceGC::can_expand(min_words, this->is_class())) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1277 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1278 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1279
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1280 size_t allowed_expansion_words = MetaspaceGC::allowed_expansion();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1281 if (allowed_expansion_words < min_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1282 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1283 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1284
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1285 size_t max_expansion_words = MIN2(preferred_words, allowed_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1286
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1287 // Commit more memory from the the current virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1288 bool vs_expanded = expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1289 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1290 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1291 if (vs_expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1292 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1293 }
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1294 retire_current_virtual_space();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1295
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1296 // Get another virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1297 size_t grow_vs_words = MAX2((size_t)VirtualSpaceSize, preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1298 grow_vs_words = align_size_up(grow_vs_words, Metaspace::reserve_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1299
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1300 if (create_new_virtual_space(grow_vs_words)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1301 if (current_virtual_space()->is_pre_committed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1302 // The memory was pre-committed, so we are done here.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1303 assert(min_words <= current_virtual_space()->committed_words(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1304 "The new VirtualSpace was pre-committed, so it"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1305 "should be large enough to fit the alloc request.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1306 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1307 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1308
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1309 return expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1310 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1311 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1312 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1313
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1314 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1315 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1316
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1317 Metachunk* VirtualSpaceList::get_new_chunk(size_t word_size,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1318 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1319 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1320
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1321 // Allocate a chunk out of the current virtual space.
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1322 Metachunk* next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1323
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1324 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1325 return next;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1326 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1327
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1328 // The expand amount is currently only determined by the requested sizes
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1329 // and not how much committed memory is left in the current virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1330
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1331 size_t min_word_size = align_size_up(grow_chunks_by_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1332 size_t preferred_word_size = align_size_up(medium_chunk_bunch, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1333 if (min_word_size >= preferred_word_size) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1334 // Can happen when humongous chunks are allocated.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1335 preferred_word_size = min_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1336 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1337
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1338 bool expanded = expand_by(min_word_size, preferred_word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1339 if (expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1340 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1341 assert(next != NULL, "The allocation was expected to succeed after the expansion");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1342 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1343
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1344 return next;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1345 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1346
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1347 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1348 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1349 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1350 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1351 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1352 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1353 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1354 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1355 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1356
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1357 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1358
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1359 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1360 // Within the VM operation after the GC the attempt to allocate the metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1361 // should succeed. If the GC did not free enough space for the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1362 // allocation, the HWM is increased so that another virtualspace will be
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1363 // allocated for the metadata. With perm gen the increase in the perm
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1364 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1365 // metaspace policy uses those as the small and large steps for the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1366 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1367 // After the GC the compute_new_size() for MetaspaceGC is called to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1368 // resize the capacity of the metaspaces. The current implementation
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1369 // is based on the flags MinMetaspaceFreeRatio and MaxMetaspaceFreeRatio used
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1370 // to resize the Java heap by some GC's. New flags can be implemented
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1371 // if really needed. MinMetaspaceFreeRatio is used to calculate how much
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1372 // free space is desirable in the metaspace capacity to decide how much
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1373 // to increase the HWM. MaxMetaspaceFreeRatio is used to decide how much
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1374 // free space is desirable in the metaspace capacity before decreasing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1375 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1376
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1377 // Calculate the amount to increase the high water mark (HWM).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1378 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1379 // another expansion is not requested too soon. If that is not
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1380 // enough to satisfy the allocation, increase by MaxMetaspaceExpansion.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1381 // If that is still not enough, expand by the size of the allocation
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1382 // plus some.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1383 size_t MetaspaceGC::delta_capacity_until_GC(size_t bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1384 size_t min_delta = MinMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1385 size_t max_delta = MaxMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1386 size_t delta = align_size_up(bytes, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1387
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1388 if (delta <= min_delta) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1389 delta = min_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1390 } else if (delta <= max_delta) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1391 // Don't want to hit the high water mark on the next
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1392 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1393 // for this allocation.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1394 delta = max_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1395 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1396 // This allocation is large but the next ones are probably not
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1397 // so increase by the minimum.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1398 delta = delta + min_delta;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1399 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1400
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1401 assert_is_size_aligned(delta, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1402
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1403 return delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1404 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1405
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1406 size_t MetaspaceGC::capacity_until_GC() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1407 size_t value = (size_t)OrderAccess::load_ptr_acquire(&_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1408 assert(value >= MetaspaceSize, "Not initialied properly?");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1409 return value;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1410 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1411
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1412 size_t MetaspaceGC::inc_capacity_until_GC(size_t v) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1413 assert_is_size_aligned(v, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1414
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1415 return (size_t)Atomic::add_ptr(v, &_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1416 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1417
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1418 size_t MetaspaceGC::dec_capacity_until_GC(size_t v) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1419 assert_is_size_aligned(v, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1420
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1421 return (size_t)Atomic::add_ptr(-(intptr_t)v, &_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1422 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1423
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1424 bool MetaspaceGC::can_expand(size_t word_size, bool is_class) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1425 // Check if the compressed class space is full.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1426 if (is_class && Metaspace::using_class_space()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1427 size_t class_committed = MetaspaceAux::committed_bytes(Metaspace::ClassType);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1428 if (class_committed + word_size * BytesPerWord > CompressedClassSpaceSize) {
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1429 return false;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1430 }
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1431 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1432
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1433 // Check if the user has imposed a limit on the metaspace memory.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1434 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1435 if (committed_bytes + word_size * BytesPerWord > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1436 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1437 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1438
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1439 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1440 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1441
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1442 size_t MetaspaceGC::allowed_expansion() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1443 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1444
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1445 size_t left_until_max = MaxMetaspaceSize - committed_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1446
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1447 // Always grant expansion if we are initiating the JVM,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1448 // or if the GC_locker is preventing GCs.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1449 if (!is_init_completed() \|\| GC_locker::is_active_and_needs_gc()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1450 return left_until_max / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1451 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1452
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1453 size_t capacity_until_gc = capacity_until_GC();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1454
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1455 if (capacity_until_gc <= committed_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1456 return 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1457 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1458
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1459 size_t left_until_GC = capacity_until_gc - committed_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1460 size_t left_to_commit = MIN2(left_until_GC, left_until_max);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1461
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1462 return left_to_commit / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1463 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1464
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1465 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1466 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1467 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1468 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1469
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	1470 const size_t used_after_gc = MetaspaceAux::capacity_bytes();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1471 const size_t capacity_until_GC = MetaspaceGC::capacity_until_GC();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1472
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1473 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1474 const double maximum_used_percentage = 1.0 - minimum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1475
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476 const double min_tmp = used_after_gc / maximum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1478 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1479 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1481 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1482
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1483 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1486 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1489 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1490 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1491 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1492 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1493 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1494
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1495
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1496 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1497 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1498 // If we have less capacity below the metaspace HWM, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1499 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1500 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1501 expand_bytes = align_size_up(expand_bytes, Metaspace::commit_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1502 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1503 if (expand_bytes >= MinMetaspaceExpansion) {
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1504 size_t new_capacity_until_GC = MetaspaceGC::inc_capacity_until_GC(expand_bytes);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1505 Metaspace::tracer()->report_gc_threshold(capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1506 new_capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1507 MetaspaceGCThresholdUpdater::ComputeNewSize);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1508 if (PrintGCDetails && Verbose) {
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1509 gclog_or_tty->print_cr(" expanding:"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1510 " minimum_desired_capacity: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1511 " expand_bytes: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1512 " MinMetaspaceExpansion: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1513 " new metaspace HWM: %6.1fKB",
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1514 minimum_desired_capacity / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1515 expand_bytes / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1516 MinMetaspaceExpansion / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1517 new_capacity_until_GC / (double) K);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1518 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1519 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1520 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1521 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1524 // We would never want to shrink more than this
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1525 size_t max_shrink_bytes = capacity_until_GC - minimum_desired_capacity;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1526 assert(max_shrink_bytes >= 0, err_msg("max_shrink_bytes " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1527 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1528
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1529 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1530 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1531 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 const double minimum_used_percentage = 1.0 - maximum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1533 const double max_tmp = used_after_gc / minimum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1534 size_t maximum_desired_capacity = (size_t)MIN2(max_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1535 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1536 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1537 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1538 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1544 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1545 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1546 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1548 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1549
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1550 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1551 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1552
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1555 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1556 // We don't want shrink all the way back to initSize if people call
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1557 // System.gc(), because some programs do that between "phases" and then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1558 // we'd just have to grow the heap up again for the next phase. So we
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1559 // damp the shrinking: 0% on the first call, 10% on the second call, 40%
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1560 // on the third call, and 100% by the fourth call. But if we recompute
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561 // size without shrinking, it goes back to 0%.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1562 shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1563
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1564 shrink_bytes = align_size_down(shrink_bytes, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1565
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1566 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1567 err_msg("invalid shrink size " SIZE_FORMAT " not <= " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1568 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1569 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1570 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1572 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1576 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1577 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1579 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1581 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1582 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1583 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1584 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1585 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1586 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1587 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1589 MinMetaspaceExpansion / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1590 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1591 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1592 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1593
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 // Don't shrink unless it's significant
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1595 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1596 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1597 size_t new_capacity_until_GC = MetaspaceGC::dec_capacity_until_GC(shrink_bytes);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1598 Metaspace::tracer()->report_gc_threshold(capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1599 new_capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1600 MetaspaceGCThresholdUpdater::ComputeNewSize);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1601 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1602 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1603
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1605
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1606 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1607 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1608 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1609 1+(long)((double)MetadataAllocationFailALotInterval*os::random()/(max_jint+1.0));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1610 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1611 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1612
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1613 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1614 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1615 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1616 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1617 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1618 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1619 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1620 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1621 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1622 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1624 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1625 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1626 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1627 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1628 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1630 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1631
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1632 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1634 size_t ChunkManager::free_chunks_total_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1636 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1637
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1638 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1639 return free_chunks_total_words() * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1640 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1641
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1642 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1643 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1644 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1645 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647 // This lock is only needed in debug because the verification
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648 // of the _free_chunks_totals walks the list of free chunks
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1649 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1650 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1651 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1652 return _free_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1653 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1654
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1655 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1656 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1657 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1658 err_msg("_free_chunks_total " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1659 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1660 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1663 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1664 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1665 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1666 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1667 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1668
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1670 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1671 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1672 err_msg("_free_chunks_count " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1673 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1674 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1675 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1676
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1677 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1678 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1679 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1680 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1681 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1682 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1683 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1684
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1685 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1686 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1687 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1688 locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1689 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1690
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1691 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1692 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1693 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1694 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1695
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1696 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1697 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1698 st->print_cr("Free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1699 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1700 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1701
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1702 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1703 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1704 st->print_cr("Sum free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1705 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1706 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1707 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1708 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1709 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1710
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1711 // These methods that sum the free chunk lists are used in printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1712 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1713 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1714 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1715 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1716 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1717 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1718
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1719 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1720 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1721 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1722
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1723 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1724 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1725 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1726 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1727 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1728
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1729 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1730 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1731 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1732 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1733 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1734 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1735 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1736 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1737 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1738 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1739 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1740 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1741 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1742
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1743 ChunkList* ChunkManager::find_free_chunks_list(size_t word_size) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1744 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1745 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1746 return free_chunks(index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1747 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1748
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1749 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1750 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1751
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1752 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1753
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1754 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1755 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1756 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1757 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1758
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1759 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1760
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1761 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1762 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1763 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1764
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1765 // Remove the chunk as the head of the list.
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1766 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1767
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1768 if (TraceMetadataChunkAllocation && Verbose) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1769 gclog_or_tty->print_cr("ChunkManager::free_chunks_get: free_list "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1770 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1771 free_list, chunk, chunk->word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1772 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1773 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1774 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1775 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1776 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1777
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1778 if (chunk == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1779 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1780 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1781
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1782 if (TraceMetadataHumongousAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1783 size_t waste = chunk->word_size() - word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1784 gclog_or_tty->print_cr("Free list allocate humongous chunk size "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1785 SIZE_FORMAT " for requested size " SIZE_FORMAT
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1786 " waste " SIZE_FORMAT,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1787 chunk->word_size(), word_size, waste);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1788 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1789 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1790
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1791 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1792 dec_free_chunks_total(chunk->word_size());
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1793
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1794 // Remove it from the links to this freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1795 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1796 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1797 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1798 // Chunk is no longer on any freelist. Setting to false make container_count_slow()
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1799 // work.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1800 chunk->set_is_tagged_free(false);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1801 #endif
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1802 chunk->container()->inc_container_count();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1803
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1804 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1805 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1806 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1807
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1808 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1809 assert_lock_strong(SpaceManager::expand_lock());
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1810 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1811
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1812 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1813 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1814 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1815 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1816 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1817
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1818 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1819 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1820 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1821 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1822 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1823 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1824 ChunkList* list = find_free_chunks_list(word_size);
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1825 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1826 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1827 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1828 }
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1829 gclog_or_tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1830 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1831 this, chunk, chunk->word_size(), list_count);
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1832 locked_print_free_chunks(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1833 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1834
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1835 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1836 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1837
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1838 void ChunkManager::print_on(outputStream* out) const {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1839 if (PrintFLSStatistics != 0) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1840 const_cast<ChunkManager *>(this)->humongous_dictionary()->report_statistics();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1841 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1842 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1843
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1844 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1845
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1846 void SpaceManager::get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1847 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1848 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1849 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1850 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1851 *chunk_word_size = Metaspace::first_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1852 *class_chunk_word_size = Metaspace::first_class_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1853 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1854 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1855 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1856 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1857 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1858 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1859 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1860 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1861 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1862 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1863 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1864 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1865 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1866 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1867 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1868 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1869 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1870 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1871 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1872 assert(chunk_word_size != 0 && class_chunk_word_size != 0,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1873 err_msg("Initial chunks sizes bad: data " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1874 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1875 chunk_word_size, class_chunk_word_size));
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1876 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1877
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1878 size_t SpaceManager::sum_free_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1879 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1880 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1881 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1882 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1883 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1884 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1885 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1886 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1887 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1888 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1889 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1890
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1891 size_t SpaceManager::sum_waste_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1892 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1893 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1894 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1896 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1897
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1898 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1899 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1901 size_t SpaceManager::sum_waste_in_chunks_in_use(ChunkIndex index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1902 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1903 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1904 // Count the free space in all the chunk but not the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1905 // current chunk from which allocations are still being done.
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1906 while (chunk != NULL) {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1907 if (chunk != current_chunk()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1908 result += chunk->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1909 }
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1910 chunk = chunk->next();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1911 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1912 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1913 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1914
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1915 size_t SpaceManager::sum_capacity_in_chunks_in_use() const {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1916 // For CMS use "allocated_chunks_words()" which does not need the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1917 // Metaspace lock. For the other collectors sum over the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1918 // lists. Use both methods as a check that "allocated_chunks_words()"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1919 // is correct. That is, sum_capacity_in_chunks() is too expensive
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1920 // to use in the product and allocated_chunks_words() should be used
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1921 // but allow for checking that allocated_chunks_words() returns the same
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1922 // value as sum_capacity_in_chunks_in_use() which is the definitive
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1923 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1924 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1925 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1926 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1927 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1928 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1929 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1930 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1931 while (chunk != NULL) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1932 sum += chunk->word_size();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1933 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1934 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1935 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1936 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1937 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1938 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1939
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1940 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1941 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1942 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1943 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1944 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1945
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1946 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1947 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1948
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1949 size_t SpaceManager::sum_count_in_chunks_in_use(ChunkIndex i) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1950 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1951 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1952 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1953 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1954 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1955 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1956 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1957 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1958
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1959
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1960 size_t SpaceManager::sum_used_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1961 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1962 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1963 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1964 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1965 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1966 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1967 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1968 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1969 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1970 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1971 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1972
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1973 void SpaceManager::locked_print_chunks_in_use_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1974
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1975 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1976 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1977 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1978 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1979 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1980 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1981 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1982 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1983 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1984 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1985 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1986
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1987 chunk_manager()->locked_print_free_chunks(st);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1988 chunk_manager()->locked_print_sum_free_chunks(st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1989 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1990
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1991 size_t SpaceManager::calc_chunk_size(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1992
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1993 // Decide between a small chunk and a medium chunk. Up to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1994 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1995 // once a medium chunk has been allocated, no more small
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1996 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1997 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1998 if (chunks_in_use(MediumIndex) == NULL &&
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1999 sum_count_in_chunks_in_use(SmallIndex) < _small_chunk_limit) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2000 chunk_word_size = (size_t) small_chunk_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2001 if (word_size + Metachunk::overhead() > small_chunk_size()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2002 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2003 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2004 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2005 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2006 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2007
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2008 // Might still need a humongous chunk. Enforce
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2009 // humongous allocations sizes to be aligned up to
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2010 // the smallest chunk size.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2011 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2012 align_size_up(word_size + Metachunk::overhead(),
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2013 smallest_chunk_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2014 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2015 MAX2((size_t) chunk_word_size, if_humongous_sized_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2016
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2017 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2018 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2019 err_msg("Size calculation is wrong, word_size " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2020 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2021 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2022 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2023 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2024 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2025 gclog_or_tty->print_cr(" word_size " PTR_FORMAT, word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2026 gclog_or_tty->print_cr(" chunk_word_size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2027 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2028 gclog_or_tty->print_cr(" chunk overhead " PTR_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2029 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2030 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2031 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2032 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2033
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2034 void SpaceManager::track_metaspace_memory_usage() {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2035 if (is_init_completed()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2036 if (is_class()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2037 MemoryService::track_compressed_class_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2038 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2039 MemoryService::track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2040 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2041 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2042
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2043 MetaWord* SpaceManager::grow_and_allocate(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2044 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2045 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2046 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2047 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2048 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2049 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2050
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2051 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2052 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2053 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2054 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2055 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2056 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2057 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2058 gclog_or_tty->print_cr("SpaceManager::grow_and_allocate for " SIZE_FORMAT
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2059 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2060 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2061 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2062 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2063
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2064 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2065 size_t grow_chunks_by_words = calc_chunk_size(word_size);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2066 Metachunk* next = get_new_chunk(word_size, grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2067
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2068 MetaWord* mem = NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2069
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2070 // If a chunk was available, add it to the in-use chunk list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2071 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2072 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2073 // Add to this manager's list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2074 add_chunk(next, false);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2075 mem = next->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2076 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2077
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2078 // Track metaspace memory usage statistic.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2079 track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2080
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2081 return mem;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2082 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2083
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2084 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2085
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2086 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2087 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2088 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2089 st->print_cr(" chunks_in_use " PTR_FORMAT " chunk size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2090 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2091 chunks_in_use(i) == NULL ? 0 : chunks_in_use(i)->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2092 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2093 st->print_cr(" waste: Small " SIZE_FORMAT " Medium " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2094 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2095 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2096 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2097 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2098 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2099 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2100 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2101 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2102 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2103 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2104
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2105 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2106 Mutex* lock) :
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2107 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2108 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2109 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2110 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2111 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2112 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2113 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2114 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2115
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2116 void SpaceManager::inc_size_metrics(size_t words) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2117 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2118 // Total of allocated Metachunks and allocated Metachunks count
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2119 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2120 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2121 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2122 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2123 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2124 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2125 // used_words_slow() includes the overhead in each
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2126 // Metachunk so include it in the used when the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2127 // Metachunk is first added (so only added once per
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2128 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2129 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2130 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2131
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2132 void SpaceManager::inc_used_metrics(size_t words) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2133 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2134 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2135 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2136 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2137 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2138
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2139 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2140 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2141 MetaspaceAux::dec_used(mdtype(), allocated_blocks_words());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2142 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2143 MetaspaceAux::dec_used(mdtype(), allocated_chunks_count() * Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2144 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2145
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2146 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2147 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2148 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2149 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2150 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2151 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2152 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2153 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2154 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2155 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2156
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2157 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2158 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2159 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2160 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2161 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2162 assert(list->size() == chunks->word_size(), "Mismatch in chunk sizes");
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2163 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2164 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2165
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2166 // This returns chunks one at a time. If a new
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2167 // class List can be created that is a base class
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2168 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2169 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2170 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2171 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2172 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2173 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2174 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2175 Metachunk* next = cur->next();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2176 DEBUG_ONLY(cur->set_is_tagged_free(true);)
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2177 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2178 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2179 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2180 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2181
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2182 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2183 // This call this->_lock which can't be done while holding expand_lock()
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2184 assert(sum_capacity_in_chunks_in_use() == allocated_chunks_words(),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2185 err_msg("sum_capacity_in_chunks_in_use() " SIZE_FORMAT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2186 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2187 sum_capacity_in_chunks_in_use(), allocated_chunks_words()));
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2188
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2189 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2190 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2191
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2192 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2193
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2194 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2195
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2196 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2197 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2198 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2199 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2200
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2201 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2202 // is during the freeing of a VirtualSpaceNodes.
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2203
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2204 // Have to update before the chunks_in_use lists are emptied
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2205 // below.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2206 chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2207 sum_count_in_chunks_in_use());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2208
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2209 // Add all the chunks in use by this space manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2210 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2211
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2212 // Follow each list of chunks-in-use and add them to the
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2213 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2214
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2215 for (ChunkIndex i = ZeroIndex; i < HumongousIndex; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2216 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2217 gclog_or_tty->print_cr("returned %d %s chunks to freelist",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2218 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2219 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2220 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2221 Metachunk* chunks = chunks_in_use(i);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2222 chunk_manager()->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2223 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2224 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 gclog_or_tty->print_cr("updated freelist count %d %s",
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2226 chunk_manager()->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2228 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2229 assert(i != HumongousIndex, "Humongous chunks are handled explicitly later");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2230 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2231
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2232 // The medium chunk case may be optimized by passing the head and
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2233 // tail of the medium chunk list to add_at_head(). The tail is often
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2234 // the current chunk but there are probably exceptions.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2235
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2236 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2237 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2238 gclog_or_tty->print_cr("returned %d %s humongous chunks to dictionary",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2239 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2240 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2241 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2242 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2243 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2244 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2245
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2246 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2247 #ifdef ASSERT
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2248 humongous_chunks->set_is_tagged_free(true);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2249 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2250 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2251 gclog_or_tty->print(PTR_FORMAT " (" SIZE_FORMAT ") ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2252 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2253 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2254 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2255 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2256 align_size_up(humongous_chunks->word_size(),
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2257 smallest_chunk_size()),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2258 err_msg("Humongous chunk size is wrong: word size " SIZE_FORMAT
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2259 " granularity %d",
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2260 humongous_chunks->word_size(), smallest_chunk_size()));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2261 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2262 humongous_chunks->container()->dec_container_count();
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2263 chunk_manager()->humongous_dictionary()->return_chunk(humongous_chunks);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2264 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2265 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2266 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2267 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2268 gclog_or_tty->print_cr("updated dictionary count %d %s",
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2269 chunk_manager()->humongous_dictionary()->total_count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2270 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2271 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2272 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2273 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2274
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2275 const char* SpaceManager::chunk_size_name(ChunkIndex index) const {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2276 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2277 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2278 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2279 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2280 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2281 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2282 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2283 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2284 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2285 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2286 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2287 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2288 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2289
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2290 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2291 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2292 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2293 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2294 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2295 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2296 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2297 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2298 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2299 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2300 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2301 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2302 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2303 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2304 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2305 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2306 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2307 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2308
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2309 void SpaceManager::deallocate(MetaWord* p, size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2310 assert_lock_strong(_lock);
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2311 size_t raw_word_size = get_raw_word_size(word_size);
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	2312 size_t min_size = TreeChunk<Metablock, FreeList<Metablock> >::min_size();
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2313 assert(raw_word_size >= min_size,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2314 err_msg("Should not deallocate dark matter " SIZE_FORMAT "<" SIZE_FORMAT, word_size, min_size));
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2315 block_freelists()->return_block(p, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2316 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2317
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2318 // Adds a chunk to the list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2319 void SpaceManager::add_chunk(Metachunk* new_chunk, bool make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2320
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2321 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2322 assert(new_chunk->next() == NULL, "Should not be on a list");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2323
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2324 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2325
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2326 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2327 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2328 ChunkIndex index = ChunkManager::list_index(new_chunk->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2329
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2330 if (index != HumongousIndex) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2331 retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2332 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2333 new_chunk->set_next(chunks_in_use(index));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2334 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2335 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2336 // For null class loader data and DumpSharedSpaces, the first chunk isn't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2337 // small, so small will be null. Link this first chunk as the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2338 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2339 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2340 // Set as the current chunk but otherwise treat as a humongous chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2341 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2342 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2343 // Link at head. The _current_chunk only points to a humongous chunk for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2344 // the null class loader metaspace (class and data virtual space managers)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2345 // any humongous chunks so will not point to the tail
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2346 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2347 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2348 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2349
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2350 assert(new_chunk->word_size() > medium_chunk_size(), "List inconsistency");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2351 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2352
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2353 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2354 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2355
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2356 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2357 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2358 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2359 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2360 new_chunk->print_on(gclog_or_tty);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2361 chunk_manager()->locked_print_free_chunks(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2362 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2363 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2364
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2365 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2366 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2367 size_t remaining_words = current_chunk()->free_word_size();
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	2368 if (remaining_words >= TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2369 block_freelists()->return_block(current_chunk()->allocate(remaining_words), remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2370 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2371 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2372 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2373 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2374
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2375 Metachunk* SpaceManager::get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2376 size_t grow_chunks_by_words) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2377 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2378 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2379
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2380 if (next == NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2381 next = vs_list()->get_new_chunk(word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2382 grow_chunks_by_words,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2383 medium_chunk_bunch());
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2384 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2385
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2386 if (TraceMetadataHumongousAllocation && next != NULL &&
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2387 SpaceManager::is_humongous(next->word_size())) {
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2388 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2389 PTR_FORMAT, next->word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2390 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2391
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2392 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2393 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2394
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2395 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2396 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2397
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	2398 size_t raw_word_size = get_raw_word_size(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2399 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2400 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2401 // Allocation from the dictionary is expensive in the sense that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2402 // the dictionary has to be searched for a size. Don't allocate
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2403 // from the dictionary until it starts to get fat. Is this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2404 // a reasonable policy? Maybe an skinny dictionary is fast enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2405 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2406 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2407 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2408 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2409 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2410 p = allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2411 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2412
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2413 return p;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2414 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2415
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2416 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2417 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2418 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2419 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2420 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2421 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2422 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2423 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2424 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2425 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2426 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2427
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2428 // For DumpSharedSpaces, only allocate out of the current chunk which is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2429 // never null because we gave it the size we wanted. Caller reports out
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2430 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2431 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432 assert(current_chunk() != NULL, "should never happen");
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2433 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434 return current_chunk()->allocate(word_size); // caller handles null result
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2435 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2436
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2437 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2438 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2439 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2440
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2441 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2442 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2443 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2444
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2445 if (result != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2446 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2447 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2448 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2449 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2450
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2451 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2452 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2453
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2454 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2455 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2456 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2457 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2458 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2459 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2460 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2461 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2462 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2463 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2464 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2465 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2466 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2467 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2468 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2469
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2470 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2471 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2472 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2473 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2474 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2475 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2476 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2477 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2478
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2479 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2480 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2481 // Verification is only guaranteed at a safepoint.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2482 assert(SafepointSynchronize::is_at_safepoint() \|\| !Universe::is_fully_initialized(),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2483 "Verification can fail if the applications is running");
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2484 assert(allocated_blocks_words() == sum_used_in_chunks_in_use(),
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2485 err_msg("allocation total is not consistent " SIZE_FORMAT
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2486 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2487 allocated_blocks_words(), sum_used_in_chunks_in_use()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2488 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2489
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2490 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2491
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2492 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2493 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2494 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2495 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2496 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2497 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2499 // Add up statistics for all chunks in this SpaceManager.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2500 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2501 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2502 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2503 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2504 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2505 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2506 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2507 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2508 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2509 used += curr->used_word_size();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2510 capacity += curr->word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2511 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2512 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2513 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2514
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2515 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2516 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2517 }
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2518
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2519 size_t free = current_chunk() == NULL ? 0 : current_chunk()->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2520 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2521 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2522
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2523 out->print_cr("total of all chunks " SIZE_FORMAT " used " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2524 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2525 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2527
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2528 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2529 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2530 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2531 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2532 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2533 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2534 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2535 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2536 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2538 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2539 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2540 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2542 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2543
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2544
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2545 size_t MetaspaceAux::_capacity_words[] = {0, 0};
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2546 size_t MetaspaceAux::_used_words[] = {0, 0};
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2547
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2548 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2549 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2550 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2551 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2552
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2553 size_t MetaspaceAux::free_bytes() {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2554 return free_bytes(Metaspace::ClassType) + free_bytes(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2555 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2556
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2557 void MetaspaceAux::dec_capacity(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2558 assert_lock_strong(SpaceManager::expand_lock());
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2559 assert(words <= capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2560 err_msg("About to decrement below 0: words " SIZE_FORMAT
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2561 " is greater than _capacity_words[%u] " SIZE_FORMAT,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2562 words, mdtype, capacity_words(mdtype)));
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2563 _capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2564 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2565
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2566 void MetaspaceAux::inc_capacity(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2567 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2568 // Needs to be atomic
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2569 _capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2570 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2571
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2572 void MetaspaceAux::dec_used(Metaspace::MetadataType mdtype, size_t words) {
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2573 assert(words <= used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2574 err_msg("About to decrement below 0: words " SIZE_FORMAT
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2575 " is greater than _used_words[%u] " SIZE_FORMAT,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2576 words, mdtype, used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2577 // For CMS deallocation of the Metaspaces occurs during the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2578 // sweep which is a concurrent phase. Protection by the expand_lock()
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2579 // is not enough since allocation is on a per Metaspace basis
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2580 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2581 jlong minus_words = (jlong) - (jlong) words;
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2582 Atomic::add_ptr(minus_words, &_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2583 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2584
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2585 void MetaspaceAux::inc_used(Metaspace::MetadataType mdtype, size_t words) {
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2586 // _used_words tracks allocations for
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2587 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2588 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2589 // threads so must be done atomically.
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2590 Atomic::add_ptr(words, &_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2591 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2592
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2593 size_t MetaspaceAux::used_bytes_slow(Metaspace::MetadataType mdtype) {
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2594 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2595 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2596 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2597 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2598 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2599 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2600 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2601 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2602 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2603 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2604 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2605
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2606 size_t MetaspaceAux::free_bytes_slow(Metaspace::MetadataType mdtype) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2607 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2608 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2609 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2610 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2611 if (msp != NULL) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2612 free += msp->free_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2613 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2614 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2615 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2616 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2617
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2618 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2619 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2620 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2621 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2622 // Don't count the space in the freelists. That space will be
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2623 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2624 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2625 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2626 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2627 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2628 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2629 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2630 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2631 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2632 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2633 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2634
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2635 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2636 #ifdef PRODUCT
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2637 // Use capacity_bytes() in PRODUCT instead of this function.
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2638 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2639 #endif
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2640 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2641 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2642 assert(capacity_bytes() == class_capacity + non_class_capacity,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2643 err_msg("bad accounting: capacity_bytes() " SIZE_FORMAT
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2644 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2645 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2646 capacity_bytes(), class_capacity + non_class_capacity,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2647 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2648
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2649 return class_capacity + non_class_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2650 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2651
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2652 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2653 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2654 return list == NULL ? 0 : list->reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2655 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2656
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2657 size_t MetaspaceAux::committed_bytes(Metaspace::MetadataType mdtype) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2658 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2659 return list == NULL ? 0 : list->committed_bytes();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2660 }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2661
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2662 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2663
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2664 size_t MetaspaceAux::free_chunks_total_words(Metaspace::MetadataType mdtype) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2665 ChunkManager* chunk_manager = Metaspace::get_chunk_manager(mdtype);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2666 if (chunk_manager == NULL) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2667 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2668 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2669 chunk_manager->slow_verify();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2670 return chunk_manager->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2672
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2673 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2674 return free_chunks_total_words(mdtype) * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2675 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2676
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2677 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2678 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2679 free_chunks_total_words(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2680 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2681
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2682 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2683 return free_chunks_total_words() * BytesPerWord;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2684 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2685
17771 9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2686 bool MetaspaceAux::has_chunk_free_list(Metaspace::MetadataType mdtype) {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2687 return Metaspace::get_chunk_manager(mdtype) != NULL;
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2688 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2689
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2690 MetaspaceChunkFreeListSummary MetaspaceAux::chunk_free_list_summary(Metaspace::MetadataType mdtype) {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2691 if (!has_chunk_free_list(mdtype)) {
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2692 return MetaspaceChunkFreeListSummary();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2693 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2694
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2695 const ChunkManager* cm = Metaspace::get_chunk_manager(mdtype);
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2696 return cm->chunk_free_list_summary();
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2697 }
9fdaa79b0c27 8036703: Add trace event with statistics for the metaspace chunk free lists ehelin parents: 17770 diff changeset	2698
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2699 void MetaspaceAux::print_metaspace_change(size_t prev_metadata_used) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2700 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2701 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2702 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2703 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2704 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2705 prev_metadata_used,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2706 used_bytes(),
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2707 reserved_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2708 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2709 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2710 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2711 "(" SIZE_FORMAT "K)",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2712 prev_metadata_used/K,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2713 used_bytes()/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2714 reserved_bytes()/K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2715 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2716
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2717 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2718 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2719
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2720 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2721 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2722 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2723
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2724 out->print_cr(" Metaspace "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2725 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2726 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2727 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2728 "reserved " SIZE_FORMAT "K",
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2729 used_bytes()/K,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2730 capacity_bytes()/K,
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2731 committed_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2732 reserved_bytes()/K);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2733
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2734 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2735 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2736 out->print_cr(" class space "
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2737 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2738 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2739 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2740 "reserved " SIZE_FORMAT "K",
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2741 used_bytes(ct)/K,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2742 capacity_bytes(ct)/K,
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2743 committed_bytes(ct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2744 reserved_bytes(ct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2745 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2746 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2747
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2748 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2749 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2750 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2751 size_t free_chunks_capacity_bytes = free_chunks_total_bytes(mdtype);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2752 size_t capacity_bytes = capacity_bytes_slow(mdtype);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2753 size_t used_bytes = used_bytes_slow(mdtype);
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2754 size_t free_bytes = free_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2755 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2756 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2757 out->print_cr(" Chunk accounting: used in chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2758 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2759 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2760 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2761 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2762 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2763 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2764 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2765 capacity_bytes / K);
8738 1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation mgerdin parents: 8040 diff changeset	2766 // Accounting can only be correct if we got the values during a safepoint
1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation mgerdin parents: 8040 diff changeset	2767 assert(!SafepointSynchronize::is_at_safepoint() \|\| used_and_free == capacity_bytes, "Accounting is wrong");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2768 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2769
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2770 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2771 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2772 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2773 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2774 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_humongous_count = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2775 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2776 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2777 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2778 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2779 cls_specialized_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2780 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2781 cls_small_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2782 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2783 cls_medium_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2784 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2785 cls_humongous_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2786 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2787 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2788 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2789 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2790 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2791 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2792 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2793 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2794 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2795 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2796
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2797 // Print total fragmentation for data and class metaspaces separately
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2798 void MetaspaceAux::print_waste(outputStream* out) {
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2799 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2800 size_t specialized_count = 0, small_count = 0, medium_count = 0, humongous_count = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2801
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2802 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2803 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2804 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2805 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2806 specialized_waste += msp->vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2807 specialized_count += msp->vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2808 small_waste += msp->vsm()->sum_waste_in_chunks_in_use(SmallIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2809 small_count += msp->vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2810 medium_waste += msp->vsm()->sum_waste_in_chunks_in_use(MediumIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2811 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2812 humongous_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2813 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2814 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2815 out->print_cr("Total fragmentation waste (words) doesn't count free space");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2816 out->print_cr(" data: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2817 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2818 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2819 "large count " SIZE_FORMAT,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2820 specialized_count, specialized_waste, small_count,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2821 small_waste, medium_count, medium_waste, humongous_count);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2822 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2823 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2824 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2825 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2826
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2827 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2828 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2829 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2830 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2831 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2832 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2833 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2834
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2835 void MetaspaceAux::verify_free_chunks() {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2836 Metaspace::chunk_manager_metadata()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2837 if (Metaspace::using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2838 Metaspace::chunk_manager_class()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2839 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2840 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2841
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2842 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2843 #ifdef ASSERT
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2844 size_t running_sum_capacity_bytes = capacity_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2845 // For purposes of the running sum of capacity, verify against capacity
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2846 size_t capacity_in_use_bytes = capacity_bytes_slow();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2847 assert(running_sum_capacity_bytes == capacity_in_use_bytes,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2848 err_msg("capacity_words() * BytesPerWord " SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2849 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2850 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2851 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2852 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2853 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2854 size_t capacity_in_use_bytes = capacity_bytes_slow(i);
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2855 assert(capacity_bytes(i) == capacity_in_use_bytes,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2856 err_msg("capacity_bytes(%u) " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2857 " capacity_bytes_slow(%u)" SIZE_FORMAT,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2858 i, capacity_bytes(i), i, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2859 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2860 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2861 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2862
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2863 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2864 #ifdef ASSERT
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2865 size_t running_sum_used_bytes = used_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2866 // For purposes of the running sum of used, verify against used
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2867 size_t used_in_use_bytes = used_bytes_slow();
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2868 assert(used_bytes() == used_in_use_bytes,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2869 err_msg("used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2870 " used_bytes_slow()" SIZE_FORMAT,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2871 used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2872 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2873 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2874 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2875 size_t used_in_use_bytes = used_bytes_slow(i);
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2876 assert(used_bytes(i) == used_in_use_bytes,
270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2877 err_msg("used_bytes(%u) " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2878 " used_bytes_slow(%u)" SIZE_FORMAT,
17866 270d7cb38f40 8038934: Remove prefix allocated_ from methods and variables in Metaspace ehelin parents: 17771 diff changeset	2879 i, used_bytes(i), i, used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2880 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2881 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2882 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2883
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2884 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2885 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2886 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2887 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2888
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2889
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2890 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2891
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2892 size_t Metaspace::_first_chunk_word_size = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2893 size_t Metaspace::_first_class_chunk_word_size = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2894
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2895 size_t Metaspace::_commit_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2896 size_t Metaspace::_reserve_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2897
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2898 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2899 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2900 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2901
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2902 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2903 delete _vsm;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2904 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2905 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2906 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2907 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2908
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2909 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2910 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2911
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2912 ChunkManager* Metaspace::_chunk_manager_metadata = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2913 ChunkManager* Metaspace::_chunk_manager_class = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2914
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2915 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2916
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2917 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2918 static const uint64_t UnscaledClassSpaceMax = (uint64_t(max_juint) + 1);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2919
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2920 void Metaspace::set_narrow_klass_base_and_shift(address metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2921 // Figure out the narrow_klass_base and the narrow_klass_shift. The
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2922 // narrow_klass_base is the lower of the metaspace base and the cds base
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2923 // (if cds is enabled). The narrow_klass_shift depends on the distance
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2924 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2925 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2926 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2927 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2928 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2929 (address)(metaspace_base + compressed_class_space_size()));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2930 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2931 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2932 higher_address = metaspace_base + compressed_class_space_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2933 lower_base = metaspace_base;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2934
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2935 uint64_t klass_encoding_max = UnscaledClassSpaceMax << LogKlassAlignmentInBytes;
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2936 // If compressed class space fits in lower 32G, we don't need a base.
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2937 if (higher_address <= (address)klass_encoding_max) {
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2938 lower_base = 0; // effectively lower base is zero.
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2939 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2940 }
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2941
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2942 Universe::set_narrow_klass_base(lower_base);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2943
13037 c8fc12209830 8027616: Off by one error in putback for compressed oops nashorn performance improvement coleenp parents: 13001 diff changeset	2944 if ((uint64_t)(higher_address - lower_base) <= UnscaledClassSpaceMax) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2945 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2946 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2947 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2948 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2949 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2950 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2951
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2952 // Return TRUE if the specified metaspace_base and cds_base are close enough
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2953 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2954 bool Metaspace::can_use_cds_with_metaspace_addr(char* metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2955 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2956 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2957 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2958 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2959 (address)(metaspace_base + compressed_class_space_size()));
13037 c8fc12209830 8027616: Off by one error in putback for compressed oops nashorn performance improvement coleenp parents: 13001 diff changeset	2960 return ((uint64_t)(higher_address - lower_base) <= UnscaledClassSpaceMax);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2961 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2962
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2963 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2964 void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2965 assert(using_class_space(), "called improperly");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2966 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2967 assert(compressed_class_space_size() < KlassEncodingMetaspaceMax,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2968 "Metaspace size is too big");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2969 assert_is_ptr_aligned(requested_addr, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2970 assert_is_ptr_aligned(cds_base, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2971 assert_is_size_aligned(compressed_class_space_size(), _reserve_alignment);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2972
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2973 // Don't use large pages for the class space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2974 bool large_pages = false;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2975
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2976 ReservedSpace metaspace_rs = ReservedSpace(compressed_class_space_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2977 _reserve_alignment,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2978 large_pages,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2979 requested_addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2980 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2981 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2982 size_t increment = align_size_up(1*G, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2983
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2984 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2985 // by 1GB each time, until we reach an address that will no longer allow
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2986 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2987 char *addr = requested_addr;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2988 while (!metaspace_rs.is_reserved() && (addr + increment > addr) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2989 can_use_cds_with_metaspace_addr(addr + increment, cds_base)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2990 addr = addr + increment;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2991 metaspace_rs = ReservedSpace(compressed_class_space_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2992 _reserve_alignment, large_pages, addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2993 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2994 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2995
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2996 // If no successful allocation then try to allocate the space anywhere. If
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2997 // that fails then OOM doom. At this point we cannot try allocating the
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2998 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2999 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3000 // So, UseCompressedClassPointers cannot be turned off at this point.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3001 if (!metaspace_rs.is_reserved()) {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3002 metaspace_rs = ReservedSpace(compressed_class_space_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3003 _reserve_alignment, large_pages);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3004 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3005 vm_exit_during_initialization(err_msg("Could not allocate metaspace: %d bytes",
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3006 compressed_class_space_size()));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3007 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3008 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3009 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3010
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3011 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3012 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3013
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3014 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3015 if (UseSharedSpaces && !can_use_cds_with_metaspace_addr(metaspace_rs.base(), cds_base)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3016 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3017 "Could not allocate metaspace at a compatible address");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3018 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3019
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3020 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3021 UseSharedSpaces ? (address)cds_base : 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3022
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3023 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3024
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3025 if (PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3026 gclog_or_tty->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3027 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3028 gclog_or_tty->print_cr("Compressed class space size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3029 compressed_class_space_size(), metaspace_rs.base(), requested_addr);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3030 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3031 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3032
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3033 // For UseCompressedClassPointers the class space is reserved above the top of
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3034 // the Java heap. The argument passed in is at the base of the compressed space.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3035 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3036 // The reserved space size may be bigger because of alignment, esp with UseLargePages
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3037 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3038 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3039 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3040 _class_space_list = new VirtualSpaceList(rs);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3041 _chunk_manager_class = new ChunkManager(SpecializedChunk, ClassSmallChunk, ClassMediumChunk);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3042
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3043 if (!_class_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3044 vm_exit_during_initialization("Failed to setup compressed class space virtual space list.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3045 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3046 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3047
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3048 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3049
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3050 void Metaspace::ergo_initialize() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3051 if (DumpSharedSpaces) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3052 // Using large pages when dumping the shared archive is currently not implemented.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3053 FLAG_SET_ERGO(bool, UseLargePagesInMetaspace, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3054 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3055
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3056 size_t page_size = os::vm_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3057 if (UseLargePages && UseLargePagesInMetaspace) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3058 page_size = os::large_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3059 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3060
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3061 _commit_alignment = page_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3062 _reserve_alignment = MAX2(page_size, (size_t)os::vm_allocation_granularity());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3063
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3064 // Do not use FLAG_SET_ERGO to update MaxMetaspaceSize, since this will
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3065 // override if MaxMetaspaceSize was set on the command line or not.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3066 // This information is needed later to conform to the specification of the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3067 // java.lang.management.MemoryUsage API.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3068 //
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3069 // Ideally, we would be able to set the default value of MaxMetaspaceSize in
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3070 // globals.hpp to the aligned value, but this is not possible, since the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3071 // alignment depends on other flags being parsed.
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3072 MaxMetaspaceSize = align_size_down_bounded(MaxMetaspaceSize, _reserve_alignment);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3073
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3074 if (MetaspaceSize > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3075 MetaspaceSize = MaxMetaspaceSize;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3076 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3077
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3078 MetaspaceSize = align_size_down_bounded(MetaspaceSize, _commit_alignment);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3079
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3080 assert(MetaspaceSize <= MaxMetaspaceSize, "MetaspaceSize should be limited by MaxMetaspaceSize");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3081
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3082 if (MetaspaceSize < 256*K) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3083 vm_exit_during_initialization("Too small initial Metaspace size");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3084 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3085
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3086 MinMetaspaceExpansion = align_size_down_bounded(MinMetaspaceExpansion, _commit_alignment);
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3087 MaxMetaspaceExpansion = align_size_down_bounded(MaxMetaspaceExpansion, _commit_alignment);
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3088
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3089 CompressedClassSpaceSize = align_size_down_bounded(CompressedClassSpaceSize, _reserve_alignment);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3090 set_compressed_class_space_size(CompressedClassSpaceSize);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3091 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3092
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3093 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3094 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3095 int max_alignment = os::vm_page_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3096 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3097
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3098 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3099
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3100 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3101 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3102 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3103 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3104 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3105
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3106 // Initialize with the sum of the shared space sizes. The read-only
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3107 // and read write metaspace chunks will be allocated out of this and the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3108 // remainder is the misc code and data chunks.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3109 cds_total = FileMapInfo::shared_spaces_size();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3110 cds_total = align_size_up(cds_total, _reserve_alignment);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3111 _space_list = new VirtualSpaceList(cds_total/wordSize);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3112 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3113
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3114 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3115 vm_exit_during_initialization("Unable to dump shared archive.", NULL);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3116 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3117
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3118 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3119 if (cds_total + compressed_class_space_size() > UnscaledClassSpaceMax) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3120 vm_exit_during_initialization("Unable to dump shared archive.",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3121 err_msg("Size of archive (" SIZE_FORMAT ") + compressed class space ("
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3122 SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3123 "klass limit: " SIZE_FORMAT, cds_total, compressed_class_space_size(),
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3124 cds_total + compressed_class_space_size(), UnscaledClassSpaceMax));
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3125 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3126
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3127 // Set the compressed klass pointer base so that decoding of these pointers works
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3128 // properly when creating the shared archive.
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3129 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3130 "UseCompressedOops and UseCompressedClassPointers must be set");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3131 Universe::set_narrow_klass_base((address)_space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3132 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3133 gclog_or_tty->print_cr("Setting_narrow_klass_base to Address: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3134 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3135 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3136
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3137 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3138 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3139
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3140 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3141 // If using shared space, open the file that contains the shared space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3142 // and map in the memory before initializing the rest of metaspace (so
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3143 // the addresses don't conflict)
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3144 address cds_address = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3145 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3146 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3147 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3148
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3149 // Open the shared archive file, read and validate the header. If
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3150 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3151 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3152 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3153 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3154 FileMapInfo::set_current_info(mapinfo);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3155 cds_total = FileMapInfo::shared_spaces_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3156 cds_address = (address)mapinfo->region_base(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3157 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3158 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3159 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3160 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3161 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3162
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3163 #ifdef _LP64
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3164 // If UseCompressedClassPointers is set then allocate the metaspace area
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3165 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3166 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3167 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3168 char* cds_end = (char*)(cds_address + cds_total);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3169 cds_end = (char *)align_ptr_up(cds_end, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3170 allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3171 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3172 char* base = (char*)align_ptr_up(Universe::heap()->reserved_region().end(), _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3173 allocate_metaspace_compressed_klass_ptrs(base, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3174 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3175 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3176 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3177
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3178 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3179 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3180 _first_chunk_word_size = align_word_size_up(_first_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3181 // Make the first class chunk bigger than a medium chunk so it's not put
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3182 // on the medium chunk list. The next chunk will be small and progress
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3183 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3184 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3185 (CompressedClassSpaceSize/BytesPerWord)*2);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3186 _first_class_chunk_word_size = align_word_size_up(_first_class_chunk_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3187 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3188 // of the boot class loader size.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3189 size_t word_size = VIRTUALSPACEMULTIPLIER * _first_chunk_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3190 word_size = align_size_up(word_size, Metaspace::reserve_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3191
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3192 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3193 _space_list = new VirtualSpaceList(word_size);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3194 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3195
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3196 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3197 vm_exit_during_initialization("Unable to setup metadata virtual space list.", NULL);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3198 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3199 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3200
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3201 MetaspaceGC::initialize();
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3202 _tracer = new MetaspaceTracer();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3203 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3204
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3205 Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3206 size_t chunk_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3207 size_t chunk_bunch) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3208 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3209 Metachunk* chunk = get_chunk_manager(mdtype)->chunk_freelist_allocate(chunk_word_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3210 if (chunk != NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3211 return chunk;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3212 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3213
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3214 return get_space_list(mdtype)->get_new_chunk(chunk_word_size, chunk_word_size, chunk_bunch);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3215 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3216
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3217 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3218
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3219 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3220 "Metadata VirtualSpaceList has not been initialized");
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3221 assert(chunk_manager_metadata() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3222 "Metadata ChunkManager has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3223
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3224 _vsm = new SpaceManager(NonClassType, lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3225 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3226 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3227 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3228 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3229 size_t class_word_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3230 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3231
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3232 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3233 assert(class_space_list() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3234 "Class VirtualSpaceList has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3235 assert(chunk_manager_class() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3236 "Class ChunkManager has not been initialized");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3237
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3238 // Allocate SpaceManager for classes.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3239 _class_vsm = new SpaceManager(ClassType, lock);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3240 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3241 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3242 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3243 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3244
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3245 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3246
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3247 // Allocate chunk for metadata objects
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3248 Metachunk* new_chunk = get_initialization_chunk(NonClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3249 word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3250 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3251 assert(!DumpSharedSpaces \|\| new_chunk != NULL, "should have enough space for both chunks");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3252 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3253 // Add to this manager's list of chunks in use and current_chunk().
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3254 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3255 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3256
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3257 // Allocate chunk for class metadata objects
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3258 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3259 Metachunk* class_chunk = get_initialization_chunk(ClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3260 class_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3261 class_vsm()->medium_chunk_bunch());
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3262 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3263 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3264 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3265 }
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3266
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3267 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3268 _alloc_record_tail = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3269 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3270
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3271 size_t Metaspace::align_word_size_up(size_t word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3272 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3273 return ReservedSpace::allocation_align_size_up(byte_size) / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3274 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3275
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3276 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3277 // DumpSharedSpaces doesn't use class metadata area (yet)
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3278 // Also, don't use class_vsm() unless UseCompressedClassPointers is true.
12340 bc918fd1e584 8025279: metaspace/flags/maxMetaspaceSize throws OOM: out of Compressed Klass space mgerdin parents: 12306 diff changeset	3279 if (is_class_space_allocation(mdtype)) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3280 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3281 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3282 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3283 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3284 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3285
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3286 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3287 size_t delta_bytes = MetaspaceGC::delta_capacity_until_GC(word_size * BytesPerWord);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3288 assert(delta_bytes > 0, "Must be");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3289
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3290 size_t after_inc = MetaspaceGC::inc_capacity_until_GC(delta_bytes);
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3291
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3292 // capacity_until_GC might be updated concurrently, must calculate previous value.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3293 size_t before_inc = after_inc - delta_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3294
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3295 tracer()->report_gc_threshold(before_inc, after_inc,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3296 MetaspaceGCThresholdUpdater::ExpandAndAllocate);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3297 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3298 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3299 " to " SIZE_FORMAT, before_inc, after_inc);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3300 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3301
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3302 return allocate(word_size, mdtype);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3303 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3304
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3305 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3306 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3307 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3308 assert(DumpSharedSpaces, "only useful and valid for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3309 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3311
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3312 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3313 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3314 return using_class_space() ? class_vsm()->sum_used_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3315 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3316 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3317 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3318 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3319
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	3320 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3321 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3322 return using_class_space() ? class_vsm()->sum_free_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3323 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3324 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3325 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3326 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3327
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3328 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3329 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3330 // have been made. Don't include space in the global freelist and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3331 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3332 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3333 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3334 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3335 return using_class_space() ? class_vsm()->sum_capacity_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3336 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3337 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3338 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3339 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3340
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3341 size_t Metaspace::used_bytes_slow(MetadataType mdtype) const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3342 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3343 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3344
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3345 size_t Metaspace::capacity_bytes_slow(MetadataType mdtype) const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3346 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3347 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3348
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3349 void Metaspace::deallocate(MetaWord* ptr, size_t word_size, bool is_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3350 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3351 assert(Thread::current()->is_VM_thread(), "should be the VM thread");
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3352 // Don't take Heap_lock
10191 601183f604b2 8013129: Possible deadlock with Metaspace locks due to mixed usage of safepoint aware and non-safepoint aware locking mgerdin parents: 10183 diff changeset	3353 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	3354 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3355 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3356 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3357 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3358 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3359 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3360 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3361 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3362 class_vsm()->deallocate(ptr, word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3363 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3364 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3365 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3366 } else {
10191 601183f604b2 8013129: Possible deadlock with Metaspace locks due to mixed usage of safepoint aware and non-safepoint aware locking mgerdin parents: 10183 diff changeset	3367 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3368
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	3369 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3370 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3371 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3372 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3373 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3374 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3375 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3376 if (is_class && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3377 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3378 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3379 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3380 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3381 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3382 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3383
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3384
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3385 MetaWord* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3386 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3387 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3388 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3389 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3390 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3391
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3392 assert(loader_data != NULL, "Should never pass around a NULL loader_data. "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3393 "ClassLoaderData::the_null_class_loader_data() should have been used.");
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3394
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3395 // Allocate in metaspaces without taking out a lock, because it deadlocks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3396 // with the SymbolTable_lock. Dumping is single threaded for now. We'll have
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3397 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3398 if (DumpSharedSpaces) {
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3399 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3400 Metaspace* space = read_only ? loader_data->ro_metaspace() : loader_data->rw_metaspace();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3401 MetaWord* result = space->allocate(word_size, NonClassType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3402 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3403 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3404 }
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3405
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3406 space->record_allocation(result, type, space->vsm()->get_raw_word_size(word_size));
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3407
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3408 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3409 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3410
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3411 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3412 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3413
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3414 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3415
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3416 // Try to allocate metadata.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3417 MetaWord* result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3418
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3419 if (result == NULL) {
17769 bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3420 tracer()->report_metaspace_allocation_failure(loader_data, word_size, type, mdtype);
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3421
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3422 // Allocation failed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3423 if (is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3424 // Only start a GC if the bootstrapping has completed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3425
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3426 // Try to clean out some memory and retry.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3427 result = Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3428 loader_data, word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3429 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3430 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3431
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3432 if (result == NULL) {
17770 5af31f70a866 8036701: Add trace event when a metaspace throws out of memory error ehelin parents: 17769 diff changeset	3433 report_metadata_oome(loader_data, word_size, type, mdtype, CHECK_NULL);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3434 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3435
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3436 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3437 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3438
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3439 return result;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3440 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3441
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3442 size_t Metaspace::class_chunk_size(size_t word_size) {
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3443 assert(using_class_space(), "Has to use class space");
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3444 return class_vsm()->calc_chunk_size(word_size);
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3445 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3446
17770 5af31f70a866 8036701: Add trace event when a metaspace throws out of memory error ehelin parents: 17769 diff changeset	3447 void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_size, MetaspaceObj::Type type, MetadataType mdtype, TRAPS) {
5af31f70a866 8036701: Add trace event when a metaspace throws out of memory error ehelin parents: 17769 diff changeset	3448 tracer()->report_metadata_oom(loader_data, word_size, type, mdtype);
5af31f70a866 8036701: Add trace event when a metaspace throws out of memory error ehelin parents: 17769 diff changeset	3449
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3450 // If result is still null, we are out of memory.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3451 if (Verbose && TraceMetadataChunkAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3452 gclog_or_tty->print_cr("Metaspace allocation failed for size "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3453 SIZE_FORMAT, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3454 if (loader_data->metaspace_or_null() != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3455 loader_data->dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3456 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3457 MetaspaceAux::dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3458 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3459
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3460 bool out_of_compressed_class_space = false;
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3461 if (is_class_space_allocation(mdtype)) {
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3462 Metaspace* metaspace = loader_data->metaspace_non_null();
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3463 out_of_compressed_class_space =
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3464 MetaspaceAux::committed_bytes(Metaspace::ClassType) +
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3465 (metaspace->class_chunk_size(word_size) * BytesPerWord) >
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3466 CompressedClassSpaceSize;
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3467 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3468
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3469 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3470 const char* space_string = out_of_compressed_class_space ?
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3471 "Compressed class space" : "Metaspace";
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3472
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3473 report_java_out_of_memory(space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3474
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3475 if (JvmtiExport::should_post_resource_exhausted()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3476 JvmtiExport::post_resource_exhausted(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3477 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3478 space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3479 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3480
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3481 if (!is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3482 vm_exit_during_initialization("OutOfMemoryError", space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3483 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3484
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3485 if (out_of_compressed_class_space) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3486 THROW_OOP(Universe::out_of_memory_error_class_metaspace());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3487 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3488 THROW_OOP(Universe::out_of_memory_error_metaspace());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3489 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3490 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3491
17769 bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3492 const char* Metaspace::metadata_type_name(Metaspace::MetadataType mdtype) {
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3493 switch (mdtype) {
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3494 case Metaspace::ClassType: return "Class";
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3495 case Metaspace::NonClassType: return "Metadata";
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3496 default:
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3497 assert(false, err_msg("Got bad mdtype: %d", (int) mdtype));
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3498 return NULL;
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3499 }
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3500 }
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3501
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3502 void Metaspace::record_allocation(void* ptr, MetaspaceObj::Type type, size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3503 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3504
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3505 AllocRecord rec = new AllocRecord((address)ptr, type, (int)word_size HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3506 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3507 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3508 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3509 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3510 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3511 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3512 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3513
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3514 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3515 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3516
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3517 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3518
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3519 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3520 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3521 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3522 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3523 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3524 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3525 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3526 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3527
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3528 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3529 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3530 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3531 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3532 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3533
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3534 void Metaspace::purge(MetadataType mdtype) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3535 get_space_list(mdtype)->purge(get_chunk_manager(mdtype));
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3536 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3537
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3538 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3539 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3540 Mutex::_no_safepoint_check_flag);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3541 purge(NonClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3542 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3543 purge(ClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3544 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3545 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3546
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3547 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3548 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3549 if (Verbose) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3550 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3551 if (using_class_space()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3552 class_vsm()->print_on(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3553 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3554 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3555 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3556
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3557 bool Metaspace::contains(const void* ptr) {
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3558 if (UseSharedSpaces && MetaspaceShared::is_in_shared_space(ptr)) {
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3559 return true;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3560 }
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3561
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3562 if (using_class_space() && get_space_list(ClassType)->contains(ptr)) {
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3563 return true;
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3564 }
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3565
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17866 diff changeset	3566 return get_space_list(NonClassType)->contains(ptr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3567 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3568
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3569 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3570 vsm()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3571 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3572 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3573 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3576 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3577 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3578 vsm()->dump(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3579 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3580 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3581 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3582 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3583 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3584
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3585 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3586
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3587 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3588
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3589 class TestMetaspaceAuxTest : AllStatic {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3590 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3591 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3592 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3593
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3594 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3595
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3596 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3597 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3598
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3599 size_t reserved_metadata = MetaspaceAux::reserved_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3600 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3601 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3602
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3603 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3604 size_t reserved_class = MetaspaceAux::reserved_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3605 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3606 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3607 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3608 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3609
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3610 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3611 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3612
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3613 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3614
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3615 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3616 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3617
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3618 size_t committed_metadata = MetaspaceAux::committed_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3619 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3620 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3621
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3622 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3623 size_t committed_class = MetaspaceAux::committed_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3624 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3625 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3626 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3627 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3628
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3629 static void test_virtual_space_list_large_chunk() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3630 VirtualSpaceList* vs_list = new VirtualSpaceList(os::vm_allocation_granularity());
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3631 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3632 // A size larger than VirtualSpaceSize (256k) and add one page to make it _not_ be
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3633 // vm_allocation_granularity aligned on Windows.
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3634 size_t large_size = (size_t)(2256K + (os::vm_page_size()/BytesPerWord));
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3635 large_size += (os::vm_page_size()/BytesPerWord);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3636 vs_list->get_new_chunk(large_size, large_size, 0);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3637 }
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3638
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3639 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3640 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3641 test_committed();
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3642 test_virtual_space_list_large_chunk();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3643 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3644 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3645
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3646 void TestMetaspaceAux_test() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3647 TestMetaspaceAuxTest::test();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3648 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3649
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3650 class TestVirtualSpaceNodeTest {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3651 static void chunk_up(size_t words_left, size_t& num_medium_chunks,
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3652 size_t& num_small_chunks,
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3653 size_t& num_specialized_chunks) {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3654 num_medium_chunks = words_left / MediumChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3655 words_left = words_left % MediumChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3656
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3657 num_small_chunks = words_left / SmallChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3658 words_left = words_left % SmallChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3659 // how many specialized chunks can we get?
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3660 num_specialized_chunks = words_left / SpecializedChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3661 assert(words_left % SpecializedChunk == 0, "should be nothing left");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3662 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3663
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3664 public:
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3665 static void test() {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3666 MutexLockerEx ml(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3667 const size_t vsn_test_size_words = MediumChunk * 4;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3668 const size_t vsn_test_size_bytes = vsn_test_size_words * BytesPerWord;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3669
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3670 // The chunk sizes must be multiples of eachother, or this will fail
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3671 STATIC_ASSERT(MediumChunk % SmallChunk == 0);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3672 STATIC_ASSERT(SmallChunk % SpecializedChunk == 0);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3673
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3674 { // No committed memory in VSN
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3675 ChunkManager cm(SpecializedChunk, SmallChunk, MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3676 VirtualSpaceNode vsn(vsn_test_size_bytes);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3677 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3678 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3679 assert(cm.sum_free_chunks_count() == 0, "did not commit any memory in the VSN");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3680 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3681
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3682 { // All of VSN is committed, half is used by chunks
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3683 ChunkManager cm(SpecializedChunk, SmallChunk, MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3684 VirtualSpaceNode vsn(vsn_test_size_bytes);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3685 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3686 vsn.expand_by(vsn_test_size_words, vsn_test_size_words);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3687 vsn.get_chunk_vs(MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3688 vsn.get_chunk_vs(MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3689 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3690 assert(cm.sum_free_chunks_count() == 2, "should have been memory left for 2 medium chunks");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3691 assert(cm.sum_free_chunks() == 2*MediumChunk, "sizes should add up");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3692 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3693
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3694 { // 4 pages of VSN is committed, some is used by chunks
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3695 ChunkManager cm(SpecializedChunk, SmallChunk, MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3696 VirtualSpaceNode vsn(vsn_test_size_bytes);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3697 const size_t page_chunks = 4 * (size_t)os::vm_page_size() / BytesPerWord;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3698 assert(page_chunks < MediumChunk, "Test expects medium chunks to be at least 4*page_size");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3699 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3700 vsn.expand_by(page_chunks, page_chunks);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3701 vsn.get_chunk_vs(SmallChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3702 vsn.get_chunk_vs(SpecializedChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3703 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3704
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3705 // committed - used = words left to retire
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3706 const size_t words_left = page_chunks - SmallChunk - SpecializedChunk;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3707
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3708 size_t num_medium_chunks, num_small_chunks, num_spec_chunks;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3709 chunk_up(words_left, num_medium_chunks, num_small_chunks, num_spec_chunks);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3710
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3711 assert(num_medium_chunks == 0, "should not get any medium chunks");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3712 assert(cm.sum_free_chunks_count() == (num_small_chunks + num_spec_chunks), "should be space for 3 chunks");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3713 assert(cm.sum_free_chunks() == words_left, "sizes should add up");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3714 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3715
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3716 { // Half of VSN is committed, a humongous chunk is used
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3717 ChunkManager cm(SpecializedChunk, SmallChunk, MediumChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3718 VirtualSpaceNode vsn(vsn_test_size_bytes);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3719 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3720 vsn.expand_by(MediumChunk * 2, MediumChunk * 2);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3721 vsn.get_chunk_vs(MediumChunk + SpecializedChunk); // Humongous chunks will be aligned up to MediumChunk + SpecializedChunk
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3722 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3723
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3724 const size_t words_left = MediumChunk * 2 - (MediumChunk + SpecializedChunk);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3725 size_t num_medium_chunks, num_small_chunks, num_spec_chunks;
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3726 chunk_up(words_left, num_medium_chunks, num_small_chunks, num_spec_chunks);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3727
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3728 assert(num_medium_chunks == 0, "should not get any medium chunks");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3729 assert(cm.sum_free_chunks_count() == (num_small_chunks + num_spec_chunks), "should be space for 3 chunks");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3730 assert(cm.sum_free_chunks() == words_left, "sizes should add up");
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3731 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3732
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3733 }
13439 fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3734
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3735 #define assert_is_available_positive(word_size) \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3736 assert(vsn.is_available(word_size), \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3737 err_msg(#word_size ": " PTR_FORMAT " bytes were not available in " \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3738 "VirtualSpaceNode [" PTR_FORMAT ", " PTR_FORMAT ")", \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3739 (uintptr_t)(word_size * BytesPerWord), vsn.bottom(), vsn.end()));
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3740
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3741 #define assert_is_available_negative(word_size) \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3742 assert(!vsn.is_available(word_size), \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3743 err_msg(#word_size ": " PTR_FORMAT " bytes should not be available in " \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3744 "VirtualSpaceNode [" PTR_FORMAT ", " PTR_FORMAT ")", \
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3745 (uintptr_t)(word_size * BytesPerWord), vsn.bottom(), vsn.end()));
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3746
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3747 static void test_is_available_positive() {
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3748 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3749 VirtualSpaceNode vsn(os::vm_allocation_granularity());
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3750 assert(vsn.initialize(), "Failed to setup VirtualSpaceNode");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3751
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3752 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3753 size_t commit_word_size = os::vm_allocation_granularity() / BytesPerWord;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3754 bool expanded = vsn.expand_by(commit_word_size, commit_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3755 assert(expanded, "Failed to commit");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3756
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3757 // Check that is_available accepts the committed size.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3758 assert_is_available_positive(commit_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3759
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3760 // Check that is_available accepts half the committed size.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3761 size_t expand_word_size = commit_word_size / 2;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3762 assert_is_available_positive(expand_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3763 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3764
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3765 static void test_is_available_negative() {
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3766 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3767 VirtualSpaceNode vsn(os::vm_allocation_granularity());
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3768 assert(vsn.initialize(), "Failed to setup VirtualSpaceNode");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3769
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3770 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3771 size_t commit_word_size = os::vm_allocation_granularity() / BytesPerWord;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3772 bool expanded = vsn.expand_by(commit_word_size, commit_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3773 assert(expanded, "Failed to commit");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3774
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3775 // Check that is_available doesn't accept a too large size.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3776 size_t two_times_commit_word_size = commit_word_size * 2;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3777 assert_is_available_negative(two_times_commit_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3778 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3779
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3780 static void test_is_available_overflow() {
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3781 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3782 VirtualSpaceNode vsn(os::vm_allocation_granularity());
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3783 assert(vsn.initialize(), "Failed to setup VirtualSpaceNode");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3784
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3785 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3786 size_t commit_word_size = os::vm_allocation_granularity() / BytesPerWord;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3787 bool expanded = vsn.expand_by(commit_word_size, commit_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3788 assert(expanded, "Failed to commit");
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3789
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3790 // Calculate a size that will overflow the virtual space size.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3791 void* virtual_space_max = (void*)(uintptr_t)-1;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3792 size_t bottom_to_max = pointer_delta(virtual_space_max, vsn.bottom(), 1);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3793 size_t overflow_size = bottom_to_max + BytesPerWord;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3794 size_t overflow_word_size = overflow_size / BytesPerWord;
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3795
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3796 // Check that is_available can handle the overflow.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3797 assert_is_available_negative(overflow_word_size);
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3798 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3799
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3800 static void test_is_available() {
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3801 TestVirtualSpaceNodeTest::test_is_available_positive();
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3802 TestVirtualSpaceNodeTest::test_is_available_negative();
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3803 TestVirtualSpaceNodeTest::test_is_available_overflow();
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3804 }
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3805 };
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3806
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3807 void TestVirtualSpaceNode_test() {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3808 TestVirtualSpaceNodeTest::test();
13439 fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3809 TestVirtualSpaceNodeTest::test_is_available();
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3810 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3811 #endif

Mercurial > hg > truffle

annotate src/share/vm/memory/metaspace.cpp @ 17935:7384f6a12fc1