graal-jvmci-8: src/share/vm/memory/metaspace.cpp annotate

annotate src/share/vm/memory/metaspace.cpp @ 17769:bc7714614ad8

8036699: Add trace event when a metaspace allocation fails Reviewed-by: jmasa, stefank

author	ehelin
date	Fri, 21 Mar 2014 10:20:00 +0100
parents	daef39043d2c
children	5af31f70a866

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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	190 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	191 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	192 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	193 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	194 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195 void locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	196 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	197 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	198 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	199 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	200 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	201 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	203 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	205
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	206 void print_on(outputStream* st) const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	207 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209 // 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	210 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	212 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	213
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	214 // 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	215 // 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	216 const static int WasteMultiplier = 4;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	217
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	218 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	219 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	221 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	222 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	223 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	226 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	227 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	228
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	229 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	230 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	232 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	233 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	235 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	236
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	240 // A VirtualSpaceList node.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	252 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	253 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	259 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	260 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	261 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	262
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	263 // 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	264 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 public:
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 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	268 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	269 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	271 // Convenience functions for logical bottom and end
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	272 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	273 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	274
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	275 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	276 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	277
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	278 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	279
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	280 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	282 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	292 // 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	293 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	294
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	295 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296 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	297
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	298 uintx container_count() { return _container_count; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	299 void inc_container_count();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	300 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	301 #ifdef ASSERT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	302 uint container_count_slow();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	303 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	304 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	305
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	306 // 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	307 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	308 size_t capacity_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	310 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	312 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	313 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	315 // 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	316 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	317
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	318 // 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	319 // to Virtualspace
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	320 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	321
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	322 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	323 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	324 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	325
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	326 // 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	327 // 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	328 // 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	329 // 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	330 // 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	331 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	332
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	333 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	334 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	336 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	337
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	338 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	339 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	340
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	341 #define assert_is_ptr_aligned(ptr, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	342 assert(is_ptr_aligned(ptr, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	343 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	344 SIZE_FORMAT, ptr, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	345
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	346 #define assert_is_size_aligned(size, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	347 assert(is_size_aligned(size, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	348 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	349 SIZE_FORMAT, size, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	350
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	351
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	352 // 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	353 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	354 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	355 size_t words = bytes / BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	356 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	357 if (MetaspaceGC::can_expand(words, is_class) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	358 MetaspaceGC::allowed_expansion() >= words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	359 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	360 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	361 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	362
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	363 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	364 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	365
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 // 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	367 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	368 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	369
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	370 // 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	371 // 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	372 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	374 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	375 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	376
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	377 _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	378 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	379 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	380 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	381 // 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	382 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 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 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	385 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	386 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	387
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	388 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	390
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	391 if (_rs.is_reserved()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	392 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	393 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	394 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	395 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	396
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	397 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	398 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	401 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	402 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	403 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	404 while (chunk < invalid_chunk ) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	405 assert(chunk->is_tagged_free(), "Should be tagged free");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	406 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	407 chunk_manager->remove_chunk(chunk);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	408 assert(chunk->next() == NULL &&
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	409 chunk->prev() == NULL,
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	410 "Was not removed from its list");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	411 chunk = (Metachunk*) next;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	412 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	413 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	414
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	415 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	416 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	417 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	418 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	419 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	420 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	421 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	422 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	423 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	424 // counted.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	425 if (!chunk->is_tagged_free()) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	426 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	427 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	428 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	429 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	430 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	431 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	432 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	433
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	447 // 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	448 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	450 // 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	451 size_t _reserved_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	452 size_t _committed_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	453
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	454 // Number of virtual spaces
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	461 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	462 _virtual_space_list = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	463 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	468 void link_vs(VirtualSpaceNode* new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 // 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	471 // 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	472 // 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	473 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	474
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	475 // 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	476 // 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	477 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	478
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	483 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	484
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	485 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	486 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	487 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	488
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	489 bool expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	490 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	491 size_t preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	492
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	493 bool expand_by(size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	494 size_t preferred_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	497 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	498 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	502 bool initialization_succeeded() { return _virtual_space_list != NULL; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	504 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	505 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	506 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	507 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	508
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	509 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	510 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	511 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	512 void dec_committed_words(size_t v);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	513 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	514 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	515
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	516 // Unlink empty VirtualSpaceNodes and free it.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	517 void purge(ChunkManager* chunk_manager);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 VirtualSpaceNode* _virtual_spaces;
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 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 };
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	561
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	562 // protects allocations
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	565 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	566 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	567
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 // 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	570 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	571 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 // 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	579 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	580
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	581 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	582 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	583 size_t _allocated_chunks_count;
6725 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 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586 // 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	587 // 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	588 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 BlockFreelist _block_freelists;
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 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	596 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 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	599 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	600 // ensure lock-free iteration sees fully initialized node
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	601 OrderAccess::storestore();
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	602 _chunks_in_use[index] = v;
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	603 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	609 Metaspace::MetadataType mdtype() { return _mdtype; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	610
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	611 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	612 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	613
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 void add_chunk(Metachunk* v, bool make_current);
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	623 void retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	627 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	628
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	629 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	630 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	631
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	633 SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	634 Mutex* lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	637 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	638 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	641 bool is_class() { return _mdtype == Metaspace::ClassType; }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	642
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643 // Accessors
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	644 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	645 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	646 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	647 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	648
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	649 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	650
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	651 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	652 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	653 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	654 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	655
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	656 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	657
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	660 // 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	661 // 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	662 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	663 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	664 // 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	665 // 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	666 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	667 // 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	668 // 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	669 // 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	670 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	671
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	672 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	673 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	674 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	675 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	676
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	677 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	680 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 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	682
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684 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	685
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	686 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	687
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	688 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	689 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	690 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	693 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	696 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698 // 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	699 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 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	701
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 // 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	704 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	705 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	707 // Notify memory usage to MemoryService.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	708 void track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	709
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 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	715
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	716 bool contains(const void *ptr);
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	717
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	719 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	720 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	722 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 #endif
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	724
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	725 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	726 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	727
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	728 size_t raw_bytes_size = MAX2(byte_size, sizeof(Metablock));
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	729 raw_bytes_size = align_size_up(raw_bytes_size, Metachunk::object_alignment());
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	730
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	731 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	732 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	733
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	734 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	735 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	737
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	740 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	741 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	742 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	743 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	746 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	747
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	748 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	749 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	750 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	751 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	752 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	753 " container_count_slow() " SIZE_FORMAT,
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	754 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	755 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	756
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	757 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	758 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	759 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	760 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	761
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	762 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	763 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	764 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	765 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	766 " container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	767 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	768 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	769
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	770 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	773
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	775 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 _dictionary->print_free_lists(gclog_or_tty);
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 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 }
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
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	783 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	784 Metablock* free_chunk = ::new (p) Metablock(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	786 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	788 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	791 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	792 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	795
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	796 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	797 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	800
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	801 Metablock* free_block =
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	802 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	803 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	804 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	805 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	806
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	807 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	808 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	809 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	810 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	811 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	812
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	813 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	814 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	815 const size_t unused = block_size - word_size;
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	816 if (unused >= TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	817 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	818 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	819
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	820 return new_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 }
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 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	826 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	827 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	828 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	829
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	830 // VirtualSpaceNode methods
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 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	833 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	834 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	835 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	836 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	837 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	838 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	839
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	840 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	841 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	842 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	843
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	844 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	845 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	847 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	849 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	850 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	851 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	852
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854 // 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	855 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	856 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	857 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	858 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859 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	860
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	861 // 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	862 // commit granularity to enforce the following condition.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	863 // 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	864 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	865 "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	866
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 if (TraceMetadataChunkAllocation) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	869 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	870 // 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	871 print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 // 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	877 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	878
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	879 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	880 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	881 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883
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 // 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	886 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	887 size_t min_bytes = min_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	888 size_t preferred_bytes = preferred_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	889
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	890 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	891
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	892 if (uncommitted < min_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	893 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	895
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	896 size_t commit = MIN2(preferred_bytes, uncommitted);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	897 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	898
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	899 assert(result, "Failed to commit memory");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	900
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	903
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	904 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	905 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	906 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	907 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	908 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	909 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	910 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	911 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	913 bool VirtualSpaceNode::initialize() {
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 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 return false;
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
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	919 // 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	920 // 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	921 // 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	922 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	923 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	924
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	925 // 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	926 // 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	927 // committed_size and actual_committed_size agrees.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	928 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	929
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	930 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	931 Metaspace::commit_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932 if (result) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	933 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	934 "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	935
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	936 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	937 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	938 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	939
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	940 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	941 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	942 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	943 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	944 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	945 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	946 _rs.size() / BytesPerWord));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	948
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956 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	957 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	959 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	960 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	962 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	963 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	965 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	967 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	969 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	970 #endif // ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	971
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	972 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	973 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	975 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	976 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	977 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	978 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	980 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	981 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	982
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	983 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	984 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	985 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	986 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	987 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	988 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	989 _reserved_words = _reserved_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	990 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	991
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	992 #define assert_committed_below_limit() \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	993 assert(MetaspaceAux::committed_bytes() <= MaxMetaspaceSize, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	994 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	995 " limit (MaxMetaspaceSize): " SIZE_FORMAT, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	996 MetaspaceAux::committed_bytes(), MaxMetaspaceSize));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	997
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	998 void VirtualSpaceList::inc_committed_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	999 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	1000 _committed_words = _committed_words + v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1001
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1002 assert_committed_below_limit();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1003 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1004 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	1005 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1006 _committed_words = _committed_words - v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1007
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1008 assert_committed_below_limit();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1009 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1010
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1011 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1012 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1013 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1014 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1015 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1016 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1017 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1018 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1019
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1020 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1021 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1022 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1023 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1024 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1025 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1027 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1028
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1029 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1030 dec_free_chunks_total(chunk->word_size());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1031 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1033 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1034 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1035 // the node from their respective freelists.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1036 void VirtualSpaceList::purge(ChunkManager* chunk_manager) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1037 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1038 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1039 // 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	1040 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1041 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1042 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1043 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1044 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1045 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1046 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1047 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1048 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1049 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1050 if (prev_vsl == vsl) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1051 // 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	1052 assert(vsl == virtual_space_list(), "Expected to be the first node");
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1053 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1054 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1055 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1056 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1057
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1058 vsl->purge(chunk_manager);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1059 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1060 dec_committed_words(vsl->committed_words());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1061 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1062 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1063 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1064 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1065 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1066 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1067 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1068 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1069 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1070 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1071 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1072 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1073 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1074 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1075 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1076 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1077 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1078 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1079
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1080 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	1081 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	1082
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1083 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	1084
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1085 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	1086 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	1087
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1088 vsn->retire(cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1089 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1090
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1091 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	1092 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	1093 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	1094 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	1095
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1096 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	1097 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	1098 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	1099 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	1100
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1101 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	1102 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	1103 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	1104 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1105 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1106 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	1107 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1108
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1109 VirtualSpaceList::VirtualSpaceList(size_t word_size) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1110 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1111 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1112 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1113 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1114 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1115 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1116 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1117 Mutex::_no_safepoint_check_flag);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1118 create_new_virtual_space(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1119 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1120
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1121 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1122 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1123 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1124 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1125 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1126 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1127 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1128 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1129 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1130 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1131 bool succeeded = class_entry->initialize();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1132 if (succeeded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1133 link_vs(class_entry);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1134 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1135 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1136
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1137 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1138 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	1139 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1140
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1141 // 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	1142 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	1143 assert_lock_strong(SpaceManager::expand_lock());
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1144
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1145 if (is_class()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1146 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	1147 " 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	1148 " 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	1149 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1150 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1151
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1152 if (vs_word_size == 0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1153 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	1154 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1155 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1156
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1157 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1158 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	1159 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	1160
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1161 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1162 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1163 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1164 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1165 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1166 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1167 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	1168 "Reserved memory size differs from requested memory size");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1169 link_vs(new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1170 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1171 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1172 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1173
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1174 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1175 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1176 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1177 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1178 current_virtual_space()->set_next(new_entry);
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 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	1181 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	1182 inc_committed_words(new_entry->committed_words());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1183 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1184 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1185 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1186 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1187 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1188 VirtualSpaceNode* vsl = current_virtual_space();
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1189 vsl->print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1190 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1191 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1192
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1193 bool VirtualSpaceList::expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1194 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1195 size_t preferred_words) {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1196 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1197
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1198 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	1199
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1200 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1201
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1202 // 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	1203 assert(after >= before, "Inconsistency");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1204 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1205
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1206 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1207 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1208
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1209 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	1210 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	1211 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	1212 assert(min_words <= preferred_words, "Invalid arguments");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1213
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1214 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	1215 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1216 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1217
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1218 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	1219 if (allowed_expansion_words < min_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1220 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1221 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1222
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1223 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	1224
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1225 // 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	1226 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	1227 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1228 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1229 if (vs_expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1230 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1231 }
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1232 retire_current_virtual_space();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1233
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1234 // Get another virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1235 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	1236 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	1237
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1238 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	1239 if (current_virtual_space()->is_pre_committed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1240 // 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	1241 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	1242 "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	1243 "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	1244 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1245 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1246
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1247 return expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1248 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1249 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1250 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1251
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1252 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1253 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1254
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1255 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	1256 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1257 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1258
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1259 // Allocate a chunk out of the current virtual space.
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1260 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	1261
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1262 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1263 return next;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1264 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1265
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1266 // 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	1267 // 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	1268
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1269 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	1270 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	1271 if (min_word_size >= preferred_word_size) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1272 // Can happen when humongous chunks are allocated.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1273 preferred_word_size = min_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1274 }
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 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	1277 if (expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1278 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	1279 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	1280 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1281
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1282 return next;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1283 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1284
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1285 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1286 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1287 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1288 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1289 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1290 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1291 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1292 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1293 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1294
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1295 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1296
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1297 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1298 // 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	1299 // 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	1300 // 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	1301 // 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	1302 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1303 // 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	1304 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1305 // 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	1306 // 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	1307 // 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	1308 // 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	1309 // 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	1310 // 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	1311 // 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	1312 // 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	1313 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1315 // 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	1316 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1317 // 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	1318 // 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	1319 // 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	1320 // plus some.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1321 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	1322 size_t min_delta = MinMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1323 size_t max_delta = MaxMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1324 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	1325
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1326 if (delta <= min_delta) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1327 delta = min_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1328 } else if (delta <= max_delta) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1329 // 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	1330 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1331 // for this allocation.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1332 delta = max_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1333 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1334 // 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	1335 // so increase by the minimum.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1336 delta = delta + min_delta;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1337 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1338
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1339 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	1340
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1341 return delta;
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 size_t MetaspaceGC::capacity_until_GC() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1345 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	1346 assert(value >= MetaspaceSize, "Not initialied properly?");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1347 return value;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1348 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1349
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1350 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	1351 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	1352
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1353 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	1354 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1355
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1356 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	1357 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	1358
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1359 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	1360 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1361
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1362 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	1363 // 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	1364 if (is_class && Metaspace::using_class_space()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1365 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	1366 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	1367 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	1368 }
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1369 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1370
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1371 // 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	1372 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1373 if (committed_bytes + word_size * BytesPerWord > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1374 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1375 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1376
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1377 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1378 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1379
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1380 size_t MetaspaceGC::allowed_expansion() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1381 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1382
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1383 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	1384
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1385 // 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	1386 // 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	1387 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	1388 return left_until_max / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1389 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1390
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1391 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	1392
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1393 if (capacity_until_gc <= committed_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1394 return 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1395 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1396
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1397 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	1398 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	1399
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1400 return left_to_commit / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1401 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1402
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1403 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1404 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1405 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1406 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1407
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1408 const size_t used_after_gc = MetaspaceAux::allocated_capacity_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1409 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	1410
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1411 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1412 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	1413
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1414 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	1415 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1416 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1417 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1418 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1419 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1420
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1421 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1422 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1423 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1424 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1425 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1426 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1427 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1428 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1429 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1430 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1431 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1432
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1433
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1434 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1435 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1436 // 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	1437 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1438 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	1439 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	1440 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1441 if (expand_bytes >= MinMetaspaceExpansion) {
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1442 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	1443 Metaspace::tracer()->report_gc_threshold(capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1444 new_capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1445 MetaspaceGCThresholdUpdater::ComputeNewSize);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1446 if (PrintGCDetails && Verbose) {
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1447 gclog_or_tty->print_cr(" expanding:"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1448 " minimum_desired_capacity: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1449 " expand_bytes: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1450 " MinMetaspaceExpansion: %6.1fKB"
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1451 " new metaspace HWM: %6.1fKB",
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1452 minimum_desired_capacity / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1453 expand_bytes / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1454 MinMetaspaceExpansion / (double) K,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1455 new_capacity_until_GC / (double) K);
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1456 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1457 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1458 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1459 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1460
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1461 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1462 // 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	1463 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	1464 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	1465 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1466
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1467 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1468 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1469 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1470 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	1471 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	1472 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	1473 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1474 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1475 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1478 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1479 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1481 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1482 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1483 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1486 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1489 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1490
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1491 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1492 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1493 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1494 // 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	1495 // 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	1496 // 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	1497 // 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	1498 // 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	1499 // 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	1500 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	1501
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1502 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	1503
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1504 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1505 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	1506 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1507 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1508 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1509 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1510 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1511 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1512 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1513 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1514 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1515 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1516 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1517 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1518 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1519 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1520 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1521 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1524 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1525 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1526 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1527 MinMetaspaceExpansion / (double) K);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1530 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1531
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 // 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	1533 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1534 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1535 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	1536 Metaspace::tracer()->report_gc_threshold(capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1537 new_capacity_until_GC,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	1538 MetaspaceGCThresholdUpdater::ComputeNewSize);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1544 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1545 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1546 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 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	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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1551 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1552 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1555 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1556 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1557 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1558 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1559 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1560 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1562 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1563 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1564 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1565 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1566 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1567 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1568 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1570 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1572 size_t ChunkManager::free_chunks_total_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1573 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1576 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1577 return free_chunks_total_words() * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1579
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1581 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1582 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1583 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1584 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1585 // 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	1586 // 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	1587 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1589 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1590 return _free_chunks_count;
6725 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 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1595 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1596 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	1597 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1598 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1599 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1601 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1602 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1603 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604 locked_verify_free_chunks_total();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1607 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1608 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1609 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1610 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	1611 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1612 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1613 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1614
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1615 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1616 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1617 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1618 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1619 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1620 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1621 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1622
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1624 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1625 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1626 locked_verify();
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1629 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1630 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1631 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1632 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1634 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1636 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	1637 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1638 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1639
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1640 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1641 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1642 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	1643 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1645 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1649 // 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	1650 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1651 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1652 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1653 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1654 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	1655 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1656
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1657 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1658 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1659 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1660
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1661 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1663 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1664 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1665 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1666
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1667 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1668 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1670 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	1671 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1672 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1673 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1674 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1675 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1676 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1677 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1678 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1679 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1680
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1681 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	1682 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1683 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1684 return free_chunks(index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1685 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1686
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1687 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1688 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1689
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1690 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1691
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1692 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1693 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1694 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1695 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1696
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1697 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1698
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1699 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1700 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1701 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1702
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1703 // 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	1704 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1705
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1706 if (TraceMetadataChunkAllocation && Verbose) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1707 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	1708 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	1709 free_list, chunk, chunk->word_size());
6725 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 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1712 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1713 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1714 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1715
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1716 if (chunk == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1717 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1718 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1719
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1720 if (TraceMetadataHumongousAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1721 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	1722 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	1723 SIZE_FORMAT " for requested size " SIZE_FORMAT
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1724 " waste " SIZE_FORMAT,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1725 chunk->word_size(), word_size, waste);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1726 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1727 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1728
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1729 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1730 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	1731
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1732 // 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	1733 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1734 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1735 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1736 // 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	1737 // work.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1738 chunk->set_is_tagged_free(false);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1739 #endif
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1740 chunk->container()->inc_container_count();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1741
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1742 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1743 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1745
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1746 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1747 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	1748 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1749
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1750 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1751 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1752 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1753 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1754 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1755
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1756 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1757 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1758 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1759 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1760 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1761 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1762 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	1763 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1764 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1765 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1766 }
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1767 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	1768 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	1769 this, chunk, chunk->word_size(), list_count);
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1770 locked_print_free_chunks(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1771 }
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 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1774 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1775
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1776 void ChunkManager::print_on(outputStream* out) const {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1777 if (PrintFLSStatistics != 0) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1778 const_cast<ChunkManager *>(this)->humongous_dictionary()->report_statistics();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1779 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1780 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1781
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1782 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1783
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1784 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	1785 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1786 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1787 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1788 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1789 *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	1790 *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	1791 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1792 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1793 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1794 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1795 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1796 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1797 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1798 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1799 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1800 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1801 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1802 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1803 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1804 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1805 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1806 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1807 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1808 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1809 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1810 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	1811 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	1812 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1813 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	1814 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1815
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1816 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	1817 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1818 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1819 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	1820 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1821 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1822 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1823 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1824 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1825 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1826 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1827 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1828
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1829 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	1830 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1831 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1832 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	1833 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1834 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1835
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1836 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1837 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1838
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1839 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	1840 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1841 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1842 // 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	1843 // 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	1844 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	1845 if (chunk != current_chunk()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1846 result += chunk->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1847 }
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	1848 chunk = chunk->next();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1849 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1850 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1851 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1852
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1853 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	1854 // 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	1855 // 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	1856 // 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	1857 // 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	1858 // 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	1859 // 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	1860 // 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	1861 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1862 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1863 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1864 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1865 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	1866 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1867 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	1868 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1869 while (chunk != NULL) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1870 sum += chunk->word_size();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1871 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1872 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1873 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1874 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1875 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1876 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1877
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1878 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1879 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1880 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	1881 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1882 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1883
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1884 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1885 }
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 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	1888 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1889 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1890 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1891 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1892 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1893 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1894 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1896
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1897
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1898 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	1899 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1901 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	1902 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1903 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1904 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1905 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1906 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1907 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1908 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1909 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1910
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1911 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	1912
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1913 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	1914 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1915 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1916 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1917 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1918 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1919 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1920 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1921 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1922 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1923 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1924
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1925 chunk_manager()->locked_print_free_chunks(st);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1926 chunk_manager()->locked_print_sum_free_chunks(st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1927 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1928
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1929 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	1930
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1931 // 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	1932 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1933 // 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	1934 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1935 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1936 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	1937 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	1938 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	1939 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	1940 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1941 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1942 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1943 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1944 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1945
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	1946 // 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	1947 // 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	1948 // the smallest chunk size.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1949 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1950 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	1951 smallest_chunk_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1952 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1953 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	1954
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1955 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1956 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1957 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	1958 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1959 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1960 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1961 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1962 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1963 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	1964 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	1965 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1966 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	1967 Metachunk::overhead());
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 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1970 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1971
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1972 void SpaceManager::track_metaspace_memory_usage() {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1973 if (is_init_completed()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1974 if (is_class()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1975 MemoryService::track_compressed_class_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1976 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1977 MemoryService::track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1978 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1979 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1980
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1981 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	1982 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1983 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1984 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1985 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1986 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1987 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	1988
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1989 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1990 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1991 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1992 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1993 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1994 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1995 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1996 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	1997 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1998 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1999 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2000 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2001
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2002 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2003 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	2004 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	2005
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2006 MetaWord* mem = NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2007
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2008 // 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	2009 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2010 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2011 // 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	2012 add_chunk(next, false);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2013 mem = next->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2014 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2015
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2016 // Track metaspace memory usage statistic.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2017 track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2018
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2019 return mem;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2020 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2021
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2022 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2023
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2024 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2025 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2026 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2027 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	2028 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2029 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	2030 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2031 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	2032 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2033 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2034 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2035 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2036 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2037 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2038 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2039 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2040 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2041 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2042
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2043 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2044 Mutex* lock) :
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2045 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2046 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2047 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2048 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2049 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2050 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2051 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2052 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2053
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2054 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	2055 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2056 // 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	2057 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2058 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2059 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2060 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2061 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2062 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2063 // 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	2064 // 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	2065 // 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	2066 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2067 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2068 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2069
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2070 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	2071 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2072 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2073 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2074 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2075 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2076
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2077 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2078 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2079 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	2080 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2081 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	2082 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2083
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2084 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2085 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2086 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	2087 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2088 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2089 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2090 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2091 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2094
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2095 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2096 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2097 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2098 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2099 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2100 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	2101 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2102 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2103
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2104 // 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	2105 // 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	2106 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2107 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2108 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2109 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2110 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2111 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2112 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2113 Metachunk* next = cur->next();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2114 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	2115 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2116 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2117 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2118 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2119
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2120 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2121 // 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	2122 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	2123 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	2124 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2125 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	2126
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2127 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2128 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2129
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2130 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2131
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2132 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2133
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2134 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2135 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2136 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2137 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2138
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2139 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2140 // 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	2141
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2142 // 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	2143 // below.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2144 chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2145 sum_count_in_chunks_in_use());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2146
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2147 // 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	2148 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2149
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2150 // 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	2151 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2152
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2153 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	2154 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2155 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	2156 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2157 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2158 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2159 Metachunk* chunks = chunks_in_use(i);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2160 chunk_manager()->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2161 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2162 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2163 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	2164 chunk_manager()->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2165 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2166 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2167 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	2168 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2169
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2170 // 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	2171 // 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	2172 // 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	2173
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2174 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2175 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2176 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	2177 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2178 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2179 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2180 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2181 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2182 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2183
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2184 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2185 #ifdef ASSERT
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2186 humongous_chunks->set_is_tagged_free(true);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2187 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2188 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2189 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	2190 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2191 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2192 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2193 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2194 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	2195 smallest_chunk_size()),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2196 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	2197 " granularity %d",
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	2198 humongous_chunks->word_size(), smallest_chunk_size()));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2199 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2200 humongous_chunks->container()->dec_container_count();
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2201 chunk_manager()->humongous_dictionary()->return_chunk(humongous_chunks);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2202 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2203 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2204 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2205 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2206 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	2207 chunk_manager()->humongous_dictionary()->total_count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2208 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2209 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2210 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2211 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2212
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2213 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	2214 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2215 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2216 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2217 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2218 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2219 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2220 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2221 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2222 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2223 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2224 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2226 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2228 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2229 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2230 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2231 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2232 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2233 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2234 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2235 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2236 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2237 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2238 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2239 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2240 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2241 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2242 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2243 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2244 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2245 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2246
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2247 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	2248 assert_lock_strong(_lock);
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2249 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	2250 size_t min_size = TreeChunk<Metablock, FreeList<Metablock> >::min_size();
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2251 assert(raw_word_size >= min_size,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2252 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	2253 block_freelists()->return_block(p, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2256 // 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	2257 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	2258
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2259 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2260 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	2261
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2262 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2263
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2264 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2265 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2266 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	2267
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2268 if (index != HumongousIndex) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2269 retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2270 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2271 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	2272 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2273 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2274 // 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	2275 // 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	2276 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2277 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2278 // 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	2279 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2280 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2281 // 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	2282 // 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	2283 // 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	2284 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2285 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2286 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2287
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2288 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	2289 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2290
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2291 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2292 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2293
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2294 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2295 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2296 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2297 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2298 new_chunk->print_on(gclog_or_tty);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2299 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	2300 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2302
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2303 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2304 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2305 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	2306 if (remaining_words >= TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2307 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	2308 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2309 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2310 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2311 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2312
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2313 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	2314 size_t grow_chunks_by_words) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2315 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2316 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	2317
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2318 if (next == NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2319 next = vs_list()->get_new_chunk(word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2320 grow_chunks_by_words,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2321 medium_chunk_bunch());
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2322 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2323
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2324 if (TraceMetadataHumongousAllocation && next != NULL &&
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2325 SpaceManager::is_humongous(next->word_size())) {
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2326 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2327 PTR_FORMAT, next->word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2328 }
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 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2331 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2332
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2333 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2334 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2335
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	2336 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	2337 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2338 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2339 // 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	2340 // 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	2341 // 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	2342 // 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	2343 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2344 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2345 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2346 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2347 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2348 p = allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2349 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2350
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2351 return p;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2352 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2353
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2354 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2355 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2356 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2357 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2358 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2359 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2360 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2361 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2362 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2363 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2364 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2365
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2366 // 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	2367 // 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	2368 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2369 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2370 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	2371 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2372 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	2373 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2374
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2375 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2376 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2377 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2378
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2379 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2380 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2381 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2382
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2383 if (result != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2384 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2385 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2386 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2388
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2389 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2390 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2391
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2392 // This function looks at the chunks in the metaspace without locking.
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2393 // The chunks are added with store ordering and not deleted except for at
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2394 // unloading time.
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2395 bool SpaceManager::contains(const void *ptr) {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2396 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i))
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2397 {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2398 Metachunk* curr = chunks_in_use(i);
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2399 while (curr != NULL) {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2400 if (curr->contains(ptr)) return true;
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2401 curr = curr->next();
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2402 }
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2403 }
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2404 return false;
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2405 }
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	2406
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2407 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2408 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2409 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2410 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2411 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2412 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	2413 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2414 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2415 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2416 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2417 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2418 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2419 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2420 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2421 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2422
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2423 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2424 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2425 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2426 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2427 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2428 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2429 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2430 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2431
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2433 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434 // 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	2435 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	2436 "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	2437 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	2438 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	2439 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2440 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	2441 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2442
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2443 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2444
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2445 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2446 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2447 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2448 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2449 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2450 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2451
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2452 // 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	2453 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2454 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2455 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2456 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2457 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2458 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2459 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2460 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2461 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2462 used += curr->used_word_size();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2463 capacity += curr->word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2464 waste += curr->free_word_size() + curr->overhead();;
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
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2468 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2469 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2470 }
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2471
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2472 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	2473 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2474 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2475
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2476 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	2477 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2478 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2479 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2480
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2481 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2482 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2483 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2484 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2485 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2486 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2487 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2488 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2489 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2490 }
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 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2493 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2494
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2495 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2496
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2497
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2498 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2499 size_t MetaspaceAux::_allocated_used_words[] = {0, 0};
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2500
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2501 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2502 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2503 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2504 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2505
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2506 size_t MetaspaceAux::free_bytes() {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2507 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	2508 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2509
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2510 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	2511 assert_lock_strong(SpaceManager::expand_lock());
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2512 assert(words <= allocated_capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2513 err_msg("About to decrement below 0: words " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2514 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2515 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2516 _allocated_capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2517 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2518
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2519 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	2520 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2521 // Needs to be atomic
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2522 _allocated_capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2523 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2524
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2525 void MetaspaceAux::dec_used(Metaspace::MetadataType mdtype, size_t words) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2526 assert(words <= allocated_used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2527 err_msg("About to decrement below 0: words " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2528 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2529 words, mdtype, allocated_used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2530 // 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	2531 // 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	2532 // 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	2533 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2534 jlong minus_words = (jlong) - (jlong) words;
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2535 Atomic::add_ptr(minus_words, &_allocated_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2536 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2537
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2538 void MetaspaceAux::inc_used(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2539 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2540 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2541 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2542 // threads so must be done atomically.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2543 Atomic::add_ptr(words, &_allocated_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2544 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2545
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2546 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	2547 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2548 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2549 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2550 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2551 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2552 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2553 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2554 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2555 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2556 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2557 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2558
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2559 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	2560 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2561 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2562 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2563 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2564 if (msp != NULL) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2565 free += msp->free_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2566 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2567 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2568 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2569 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2570
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2571 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2572 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2573 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2574 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2575 // 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	2576 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2577 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2578 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2579 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2580 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2581 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2582 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2583 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2584 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2585 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2586 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2587
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2588 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2589 #ifdef PRODUCT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2590 // Use allocated_capacity_bytes() in PRODUCT instead of this function.
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2591 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2592 #endif
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2593 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2594 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2595 assert(allocated_capacity_bytes() == class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2596 err_msg("bad accounting: allocated_capacity_bytes() " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2597 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2598 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2599 allocated_capacity_bytes(), class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2600 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2601
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2602 return class_capacity + non_class_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2603 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2604
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2605 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2606 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	2607 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	2608 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2609
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2610 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	2611 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	2612 return list == NULL ? 0 : list->committed_bytes();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2613 }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2614
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2615 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2616
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2617 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	2618 ChunkManager* chunk_manager = Metaspace::get_chunk_manager(mdtype);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2619 if (chunk_manager == NULL) {
12056 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 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2622 chunk_manager->slow_verify();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2623 return chunk_manager->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2624 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2625
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2626 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2627 return free_chunks_total_words(mdtype) * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2628 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2629
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2630 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2631 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2632 free_chunks_total_words(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2633 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2634
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2635 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2636 return free_chunks_total_words() * BytesPerWord;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2637 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2638
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2639 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	2640 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2641 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2642 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2643 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2644 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2645 prev_metadata_used,
11037 df7e1c0e3dc1 8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity jmasa parents: 10376 diff changeset	2646 allocated_used_bytes(),
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2647 reserved_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2648 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2649 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2650 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2651 "(" SIZE_FORMAT "K)",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2652 prev_metadata_used/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2653 allocated_used_bytes()/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2654 reserved_bytes()/K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2655 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2656
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2657 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2658 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2659
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2660 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2661 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2662 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2663
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2664 out->print_cr(" Metaspace "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2665 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2666 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2667 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2668 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2669 allocated_used_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2670 allocated_capacity_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2671 committed_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2672 reserved_bytes()/K);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2673
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2674 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2675 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2676 out->print_cr(" class space "
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2677 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2678 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2679 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2680 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2681 allocated_used_bytes(ct)/K,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2682 allocated_capacity_bytes(ct)/K,
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2683 committed_bytes(ct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2684 reserved_bytes(ct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2685 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2686 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2687
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2688 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2689 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2690 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2691 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	2692 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	2693 size_t used_bytes = used_bytes_slow(mdtype);
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2694 size_t free_bytes = free_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2695 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2696 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2697 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	2698 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2699 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2700 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2701 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2702 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2703 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2704 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2705 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	2706 // 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	2707 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	2708 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2709
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2710 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2711 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2712 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2713 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	2714 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	2715 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2716 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2717 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2718 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2719 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	2720 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	2721 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	2722 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	2723 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	2724 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	2725 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	2726 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2727 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2728 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2729 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2730 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2731 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2732 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2733 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2734 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2735 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2736
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2737 // 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	2738 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	2739 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	2740 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	2741
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2742 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2743 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2744 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2745 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2746 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	2747 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	2748 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	2749 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	2750 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	2751 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	2752 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	2753 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2754 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2755 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	2756 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	2757 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	2758 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	2759 "large count " SIZE_FORMAT,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2760 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	2761 small_waste, medium_count, medium_waste, humongous_count);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2762 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2763 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2764 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2765 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2766
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2767 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2768 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2769 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2770 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2771 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2772 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2773 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2774
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2775 void MetaspaceAux::verify_free_chunks() {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2776 Metaspace::chunk_manager_metadata()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2777 if (Metaspace::using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2778 Metaspace::chunk_manager_class()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2779 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2780 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2781
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2782 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2783 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2784 size_t running_sum_capacity_bytes = allocated_capacity_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2785 // 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	2786 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	2787 assert(running_sum_capacity_bytes == capacity_in_use_bytes,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2788 err_msg("allocated_capacity_words() * BytesPerWord " SIZE_FORMAT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2789 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2790 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2791 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2792 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2793 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2794 size_t capacity_in_use_bytes = capacity_bytes_slow(i);
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2795 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2796 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2797 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2798 i, allocated_capacity_bytes(i), i, capacity_in_use_bytes));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2799 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2800 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2801 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2802
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2803 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2804 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2805 size_t running_sum_used_bytes = allocated_used_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2806 // 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	2807 size_t used_in_use_bytes = used_bytes_slow();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2808 assert(allocated_used_bytes() == used_in_use_bytes,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2809 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2810 " used_bytes_slow()" SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2811 allocated_used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2812 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2813 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2814 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2815 size_t used_in_use_bytes = used_bytes_slow(i);
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2816 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2817 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2818 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2819 i, allocated_used_bytes(i), i, used_in_use_bytes));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2820 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2821 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2822 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2823
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2824 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2825 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2826 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2827 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2828
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2829
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2830 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2831
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2832 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	2833 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	2834
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2835 size_t Metaspace::_commit_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2836 size_t Metaspace::_reserve_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2837
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2838 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2839 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2840 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2841
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2842 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2843 delete _vsm;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2844 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2845 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2846 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2847 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2848
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2849 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2850 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2851
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2852 ChunkManager* Metaspace::_chunk_manager_metadata = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2853 ChunkManager* Metaspace::_chunk_manager_class = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2854
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2855 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2856
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2857 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2858 static const uint64_t UnscaledClassSpaceMax = (uint64_t(max_juint) + 1);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2859
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2860 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	2861 // 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	2862 // 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	2863 // (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	2864 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2865 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2866 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2867 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2868 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2869 (address)(metaspace_base + compressed_class_space_size()));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2870 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2871 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2872 higher_address = metaspace_base + compressed_class_space_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2873 lower_base = metaspace_base;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2874
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2875 uint64_t klass_encoding_max = UnscaledClassSpaceMax << LogKlassAlignmentInBytes;
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2876 // 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	2877 if (higher_address <= (address)klass_encoding_max) {
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2878 lower_base = 0; // effectively lower base is zero.
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2879 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2880 }
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2881
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2882 Universe::set_narrow_klass_base(lower_base);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2883
13037 c8fc12209830 8027616: Off by one error in putback for compressed oops nashorn performance improvement coleenp parents: 13001 diff changeset	2884 if ((uint64_t)(higher_address - lower_base) <= UnscaledClassSpaceMax) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2885 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2886 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2887 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2888 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2889 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2890 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2891
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2892 // 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	2893 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2894 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	2895 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2896 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2897 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2898 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2899 (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	2900 return ((uint64_t)(higher_address - lower_base) <= UnscaledClassSpaceMax);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2901 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2902
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2903 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2904 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	2905 assert(using_class_space(), "called improperly");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2906 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2907 assert(compressed_class_space_size() < KlassEncodingMetaspaceMax,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2908 "Metaspace size is too big");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2909 assert_is_ptr_aligned(requested_addr, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2910 assert_is_ptr_aligned(cds_base, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2911 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	2912
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2913 // 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	2914 bool large_pages = false;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2915
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2916 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	2917 _reserve_alignment,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2918 large_pages,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2919 requested_addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2920 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2921 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2922 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	2923
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2924 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2925 // 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	2926 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2927 char *addr = requested_addr;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2928 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	2929 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	2930 addr = addr + increment;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2931 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	2932 _reserve_alignment, large_pages, addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2933 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2934 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2935
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2936 // 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	2937 // 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	2938 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2939 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2940 // So, UseCompressedClassPointers cannot be turned off at this point.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2941 if (!metaspace_rs.is_reserved()) {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2942 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	2943 _reserve_alignment, large_pages);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2944 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2945 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	2946 compressed_class_space_size()));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2947 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2948 }
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 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2952 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2953
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2954 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2955 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	2956 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2957 "Could not allocate metaspace at a compatible address");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2958 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2959
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2960 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2961 UseSharedSpaces ? (address)cds_base : 0);
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 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2964
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2965 if (PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2966 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	2967 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2968 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	2969 compressed_class_space_size(), metaspace_rs.base(), requested_addr);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2970 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2971 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2972
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2973 // 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	2974 // 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	2975 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2976 // 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	2977 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2978 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2979 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2980 _class_space_list = new VirtualSpaceList(rs);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2981 _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	2982
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2983 if (!_class_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2984 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	2985 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2986 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2987
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2988 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2989
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2990 void Metaspace::ergo_initialize() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2991 if (DumpSharedSpaces) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2992 // 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	2993 FLAG_SET_ERGO(bool, UseLargePagesInMetaspace, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2994 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2995
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2996 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	2997 if (UseLargePages && UseLargePagesInMetaspace) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2998 page_size = os::large_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2999 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3000
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3001 _commit_alignment = page_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3002 _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	3003
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3004 // 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	3005 // 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	3006 // 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	3007 // java.lang.management.MemoryUsage API.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3008 //
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3009 // 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	3010 // 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	3011 // alignment depends on other flags being parsed.
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3012 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	3013
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3014 if (MetaspaceSize > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3015 MetaspaceSize = MaxMetaspaceSize;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3016 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3017
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3018 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	3019
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3020 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	3021
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3022 if (MetaspaceSize < 256*K) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3023 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	3024 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3025
13058 3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3026 MinMetaspaceExpansion = align_size_down_bounded(MinMetaspaceExpansion, _commit_alignment);
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3027 MaxMetaspaceExpansion = align_size_down_bounded(MaxMetaspaceExpansion, _commit_alignment);
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3028
3aee6bc29547 8026852: Use restricted_align_down in collector policy code jwilhelm parents: 12980 diff changeset	3029 CompressedClassSpaceSize = align_size_down_bounded(CompressedClassSpaceSize, _reserve_alignment);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3030 set_compressed_class_space_size(CompressedClassSpaceSize);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3031 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3032
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3033 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3034 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3035 int max_alignment = os::vm_page_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3036 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3037
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3038 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3039
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3040 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3041 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3042 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	3043 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3044 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3045
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3046 // 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	3047 // 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	3048 // remainder is the misc code and data chunks.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3049 cds_total = FileMapInfo::shared_spaces_size();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3050 cds_total = align_size_up(cds_total, _reserve_alignment);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3051 _space_list = new VirtualSpaceList(cds_total/wordSize);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3052 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3053
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3054 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3055 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	3056 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3057
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3058 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3059 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	3060 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	3061 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	3062 SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3063 "klass limit: " SIZE_FORMAT, cds_total, compressed_class_space_size(),
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3064 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	3065 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3066
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3067 // 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	3068 // properly when creating the shared archive.
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3069 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3070 "UseCompressedOops and UseCompressedClassPointers must be set");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3071 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	3072 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3073 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	3074 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3075 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3076
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3077 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3078 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3079
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3080 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3081 // 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	3082 // 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	3083 // the addresses don't conflict)
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3084 address cds_address = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3085 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3086 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3087 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3088
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3089 // 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	3090 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3091 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3092 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3093 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3094 FileMapInfo::set_current_info(mapinfo);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3095 cds_total = FileMapInfo::shared_spaces_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3096 cds_address = (address)mapinfo->region_base(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3097 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3098 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3099 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3100 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3101 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3102
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3103 #ifdef _LP64
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3104 // If UseCompressedClassPointers is set then allocate the metaspace area
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3105 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3106 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3107 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3108 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	3109 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	3110 allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3111 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3112 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	3113 allocate_metaspace_compressed_klass_ptrs(base, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3114 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3115 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3116 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3117
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3118 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3119 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3120 _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	3121 // 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	3122 // 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	3123 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3124 _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	3125 (CompressedClassSpaceSize/BytesPerWord)*2);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3126 _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	3127 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3128 // of the boot class loader size.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3129 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	3130 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	3131
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3132 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3133 _space_list = new VirtualSpaceList(word_size);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3134 _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	3135
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3136 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3137 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	3138 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3139 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3140
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3141 MetaspaceGC::initialize();
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3142 _tracer = new MetaspaceTracer();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3143 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3144
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3145 Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3146 size_t chunk_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3147 size_t chunk_bunch) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3148 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3149 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	3150 if (chunk != NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3151 return chunk;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3152 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3153
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3154 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	3155 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3156
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3157 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3158
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3159 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3160 "Metadata VirtualSpaceList has not been initialized");
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3161 assert(chunk_manager_metadata() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3162 "Metadata ChunkManager has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3163
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3164 _vsm = new SpaceManager(NonClassType, lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3165 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3166 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3167 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3168 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3169 size_t class_word_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3170 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3171
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3172 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3173 assert(class_space_list() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3174 "Class VirtualSpaceList has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3175 assert(chunk_manager_class() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3176 "Class ChunkManager has not been initialized");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3177
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3178 // Allocate SpaceManager for classes.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3179 _class_vsm = new SpaceManager(ClassType, lock);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3180 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3181 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3182 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3183 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3184
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3185 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	3186
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3187 // Allocate chunk for metadata objects
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3188 Metachunk* new_chunk = get_initialization_chunk(NonClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3189 word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3190 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3191 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	3192 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3193 // 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	3194 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3195 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3196
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3197 // Allocate chunk for class metadata objects
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3198 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3199 Metachunk* class_chunk = get_initialization_chunk(ClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3200 class_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3201 class_vsm()->medium_chunk_bunch());
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3202 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3203 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3204 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3205 }
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3206
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3207 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3208 _alloc_record_tail = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3209 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3210
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3211 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	3212 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3213 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	3214 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3215
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3216 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3217 // DumpSharedSpaces doesn't use class metadata area (yet)
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3218 // 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	3219 if (is_class_space_allocation(mdtype)) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3220 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3221 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3222 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3223 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3224 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3225
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3226 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	3227 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	3228 assert(delta_bytes > 0, "Must be");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3229
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3230 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	3231
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3232 // 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	3233 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	3234
17768 daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3235 tracer()->report_gc_threshold(before_inc, after_inc,
daef39043d2c 8036698: Add trace event for updates to metaspace gc threshold ehelin parents: 17695 diff changeset	3236 MetaspaceGCThresholdUpdater::ExpandAndAllocate);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3237 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3238 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	3239 " to " SIZE_FORMAT, before_inc, after_inc);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3240 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3241
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3242 return allocate(word_size, mdtype);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3243 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3244
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3245 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3246 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3247 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3248 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	3249 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3250 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3251
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3252 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3253 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3254 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	3255 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3256 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3257 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3258 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3259
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	3260 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3261 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3262 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	3263 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3264 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3265 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3266 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3267
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3268 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3269 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3270 // 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	3271 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3272 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3273 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3274 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3275 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	3276 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3277 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3278 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3279 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3280
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3281 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	3282 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3283 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3284
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3285 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	3286 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3287 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3288
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3289 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	3290 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3291 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	3292 // 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	3293 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	3294 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3295 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3296 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3297 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3298 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3299 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3300 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3301 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3302 class_vsm()->deallocate(ptr, word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3303 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3304 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3305 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3306 } 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	3307 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	3308
17695 ab36007d6358 8034171: Remove use of template template parameters from binaryTreeDictionary. goetz parents: 17663 diff changeset	3309 if (word_size < TreeChunk<Metablock, FreeList<Metablock> >::min_size()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3310 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3311 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3312 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3313 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3314 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3315 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3316 if (is_class && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3317 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3318 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3319 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3320 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3321 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3322 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3323
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3324
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3325 MetaWord* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3326 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3327 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3328 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3329 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3330 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3331
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3332 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	3333 "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	3334
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3335 // 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	3336 // 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	3337 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3338 if (DumpSharedSpaces) {
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3339 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3340 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	3341 MetaWord* result = space->allocate(word_size, NonClassType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3342 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3343 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3344 }
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3345
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3346 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	3347
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3348 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3349 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3350
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3351 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3352 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3353
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3354 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3355
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3356 // Try to allocate metadata.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3357 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	3358
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3359 if (result == NULL) {
17769 bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3360 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	3361
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3362 // Allocation failed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3363 if (is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3364 // 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	3365
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3366 // 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	3367 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	3368 loader_data, word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3369 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3370 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3371
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3372 if (result == NULL) {
12980 91a88c8450f4 8026698: Incorrect error handling in Metaspace::allocate mgerdin parents: 12979 diff changeset	3373 report_metadata_oome(loader_data, word_size, mdtype, CHECK_NULL);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3374 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3375
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3376 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3377 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3378
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3379 return result;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3380 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3381
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3382 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	3383 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	3384 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	3385 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3386
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3387 void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_size, MetadataType mdtype, TRAPS) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3388 // 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	3389 if (Verbose && TraceMetadataChunkAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3390 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	3391 SIZE_FORMAT, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3392 if (loader_data->metaspace_or_null() != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3393 loader_data->dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3394 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3395 MetaspaceAux::dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3396 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3397
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3398 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	3399 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	3400 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	3401 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	3402 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	3403 (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	3404 CompressedClassSpaceSize;
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3405 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3406
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3407 // -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	3408 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	3409 "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	3410
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3411 report_java_out_of_memory(space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3412
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3413 if (JvmtiExport::should_post_resource_exhausted()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3414 JvmtiExport::post_resource_exhausted(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3415 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3416 space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3417 }
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 (!is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3420 vm_exit_during_initialization("OutOfMemoryError", space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3421 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3422
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3423 if (out_of_compressed_class_space) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3424 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	3425 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3426 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	3427 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3428 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3429
17769 bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3430 const char* Metaspace::metadata_type_name(Metaspace::MetadataType mdtype) {
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3431 switch (mdtype) {
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3432 case Metaspace::ClassType: return "Class";
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3433 case Metaspace::NonClassType: return "Metadata";
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3434 default:
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3435 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	3436 return NULL;
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3437 }
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3438 }
bc7714614ad8 8036699: Add trace event when a metaspace allocation fails ehelin parents: 17768 diff changeset	3439
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3440 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	3441 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3442
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3443 AllocRecord rec = new AllocRecord((address)ptr, type, (int)word_size HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3444 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3445 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3446 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3447 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3448 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3449 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3450 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3451
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3452 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3453 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3454
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3455 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3456
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3457 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3458 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3459 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3460 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3461 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3462 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3463 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3464 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3465
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3466 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3467 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3468 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3469 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3470 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3471
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3472 void Metaspace::purge(MetadataType mdtype) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3473 get_space_list(mdtype)->purge(get_chunk_manager(mdtype));
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3474 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3475
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3476 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3477 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3478 Mutex::_no_safepoint_check_flag);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3479 purge(NonClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3480 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3481 purge(ClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3482 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3483 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3484
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3485 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3486 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3487 if (Verbose) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3488 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3489 if (using_class_space()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3490 class_vsm()->print_on(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3491 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3492 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3493 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3494
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3495 bool Metaspace::contains(const void* ptr) {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3496 if (vsm()->contains(ptr)) return true;
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3497 if (using_class_space()) {
40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3498 return class_vsm()->contains(ptr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3499 }
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13439 diff changeset	3500 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3501 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3503 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3504 vsm()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3505 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3506 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3507 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3510 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3511 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3512 vsm()->dump(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3513 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3514 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3515 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3516 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3517 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3518
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3519 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3520
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3521 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3522
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3523 class TestMetaspaceAuxTest : AllStatic {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3524 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3525 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3526 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3527
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3528 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3529
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3530 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3531 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3532
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3533 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	3534 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3535 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3536
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3537 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3538 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	3539 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3540 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3541 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3542 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3543
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3544 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3545 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3546
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3547 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3548
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3549 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3550 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3551
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3552 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	3553 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3554 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3555
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3556 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3557 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	3558 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3559 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3560 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3561 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3562
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3563 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	3564 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	3565 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	3566 // 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	3567 // vm_allocation_granularity aligned on Windows.
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3568 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	3569 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	3570 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	3571 }
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3572
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3573 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3574 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3575 test_committed();
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3576 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	3577 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3578 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3579
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3580 void TestMetaspaceAux_test() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3581 TestMetaspaceAuxTest::test();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3582 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3583
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3584 class TestVirtualSpaceNodeTest {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3585 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	3586 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	3587 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	3588 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	3589 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	3590
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3591 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	3592 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	3593 // 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	3594 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	3595 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	3596 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3597
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3598 public:
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3599 static void test() {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3600 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	3601 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	3602 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	3603
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3604 // 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	3605 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	3606 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	3607
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3608 { // 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	3609 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	3610 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	3611 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3612 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3613 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	3614 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3615
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3616 { // 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	3617 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	3618 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	3619 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3620 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	3621 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	3622 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	3623 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3624 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	3625 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	3626 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3627
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3628 { // 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	3629 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	3630 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	3631 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	3632 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	3633 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3634 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	3635 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	3636 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	3637 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3638
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3639 // 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	3640 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	3641
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3642 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	3643 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	3644
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3645 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	3646 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	3647 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	3648 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3649
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3650 { // 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	3651 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	3652 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	3653 vsn.initialize();
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3654 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	3655 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	3656 vsn.retire(&cm);
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3657
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3658 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	3659 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	3660 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	3661
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3662 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	3663 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	3664 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	3665 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3666
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3667 }
13439 fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3668
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3669 #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	3670 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	3671 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	3672 "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	3673 (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	3674
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3675 #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	3676 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	3677 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	3678 "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	3679 (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	3680
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3681 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	3682 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3683 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	3684 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	3685
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3686 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3687 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	3688 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	3689 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	3690
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3691 // 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	3692 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	3693
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3694 // 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	3695 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	3696 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	3697 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3698
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3699 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	3700 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3701 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	3702 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	3703
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3704 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3705 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	3706 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	3707 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	3708
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3709 // 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	3710 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	3711 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	3712 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3713
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3714 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	3715 // Reserve some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3716 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	3717 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	3718
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3719 // Commit some memory.
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3720 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	3721 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	3722 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	3723
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3724 // 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	3725 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	3726 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	3727 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	3728 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	3729
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3730 // 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	3731 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	3732 }
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3733
fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3734 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	3735 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	3736 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	3737 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	3738 }
12979 1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3739 };
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3740
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3741 void TestVirtualSpaceNode_test() {
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3742 TestVirtualSpaceNodeTest::test();
13439 fa76dce60db7 8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1) stefank parents: 13068 diff changeset	3743 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	3744 }
1d1ea10fe09f 8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it. mgerdin parents: 12906 diff changeset	3745
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3746 #endif

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/memory/metaspace.cpp @ 17769:bc7714614ad8