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

annotate src/share/vm/memory/metaspace.cpp @ 13000:209aa13ab8c0

8024927: Nashorn performance regression with CompressedOops Summary: Allocate compressed class space at end of Java heap. For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops Reviewed-by: stefank, hseigel, goetz

author	coleenp
date	Fri, 25 Oct 2013 15:19:29 -0400
parents	a6177f601c64
children	b4aa8fc5d0d5

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"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "memory/resourceArea.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 #include "memory/universe.hpp"
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	38 #include "runtime/atomic.inline.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 #include "runtime/globals.hpp"
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	40 #include "runtime/init.hpp"
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	41 #include "runtime/java.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 #include "runtime/mutex.hpp"
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	43 #include "runtime/orderAccess.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44 #include "services/memTracker.hpp"
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	45 #include "services/memoryService.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	46 #include "utilities/copy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	47 #include "utilities/debug.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	49 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	50 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	51
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	52 // 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	53 const bool metaspace_slow_verify = false;
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	54
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	55 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	56
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	59 size_t Metaspace::_compressed_class_space_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	60
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	62 enum ChunkIndex {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	63 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	64 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	65 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	66 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	67 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	68 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	69 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	70 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	71
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	72 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	73 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	74 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	75 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	76 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	77 ClassMediumChunk = 4 * K,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	78 MediumChunk = 8 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	79 HumongousChunkGranularity = 8
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	81
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	83 assert(i < NumberOfInUseLists, "Out of bound");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	87 volatile intptr_t MetaspaceGC::_capacity_until_GC = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	91 typedef class FreeList<Metachunk> ChunkList;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93 // Manages the global free lists of chunks.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	94 class ChunkManager : public CHeapObj<mtInternal> {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	96 // Free list of chunks of different sizes.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	97 // SpecializedChunk
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 // HumongousChunk
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	101 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	102
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	103 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	104 ChunkTreeDictionary _humongous_dictionary;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 // Debug support
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 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 size_t sum_free_chunks_count();
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 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	125 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	126 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	127 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	128 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	129 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130 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	131 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	132 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	133 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	134 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	135 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	136 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	140 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	141 : _free_chunks_total(0), _free_chunks_count(0) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	142 _free_chunks[SpecializedIndex].set_size(specialized_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	143 _free_chunks[SmallIndex].set_size(small_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	144 _free_chunks[MediumIndex].set_size(medium_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	145 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	146
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	147 // 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	148 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	150 // 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	151 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	152 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	153
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	154 // Remove the chunk from its freelist. It is
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	155 // expected to be on one of the _free_chunks[] lists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	156 void remove_chunk(Metachunk* chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	157
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	158 // 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	159 // of type index.
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	160 void return_chunks(ChunkIndex index, Metachunk* chunks);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	161
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	162 // Total of the space in the free chunks list
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	163 size_t free_chunks_total_words();
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	164 size_t free_chunks_total_bytes();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	167 size_t free_chunks_count();
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 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	170 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	171 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	172 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	173 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	174 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	175 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	177 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	178
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181
12906 94c0343b1887 8026715: Remove the MetaDataDeallocateALot develop flag stefank parents: 12902 diff changeset	182 // 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	183 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	187 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	188 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	189 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	190 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	191 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	192 void locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	193 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	194 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	195 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	196 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	197 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	198 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	199
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	200 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	201 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	202
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	203 void print_on(outputStream* st) const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	205
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	206 // 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	207 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	209 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	210
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	211 // 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	212 // 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	213 const static int WasteMultiplier = 4;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	214
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	215 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	216 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	217
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	218 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	219 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	221
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	222 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	223 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	224 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	225
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	226 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	227 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	228 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	229 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	230 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	232 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	233
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	236
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	237 // A VirtualSpaceList node.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 VirtualSpaceNode* _next;
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 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	249 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	250 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	252 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	256 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	257 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	258 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	259
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	263 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	264 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	266 // Convenience functions for logical bottom and end
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	267 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	268 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	269
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	270 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	271 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	272
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	273 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	274
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	275 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	276 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	277 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	278 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	279
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	280 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	282
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	287 // Returns true if "word_size" is available in the VirtualSpace
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 bool is_available(size_t word_size) { return _top + word_size <= end(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291 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	292
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	293 uintx container_count() { return _container_count; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	294 void inc_container_count();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	295 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	296 #ifdef ASSERT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	297 uint container_count_slow();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	298 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	299 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	300
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	301 // 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	302 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 size_t capacity_words_in_vs() const;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	304 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	305
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	306 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	307
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	308 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	310
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311 // 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	312 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	313
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	314 // 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	315 // to Virtualspace
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	316 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	317
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	318 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	319 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	320 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	321
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	322 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	323 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	325 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	326
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	330 #define assert_is_ptr_aligned(ptr, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	331 assert(is_ptr_aligned(ptr, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	332 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	333 SIZE_FORMAT, ptr, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	334
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	335 #define assert_is_size_aligned(size, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	336 assert(is_size_aligned(size, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	337 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	338 SIZE_FORMAT, size, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	339
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	340
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	341 // 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	342 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	343 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	344 size_t words = bytes / BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	345 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	346 if (MetaspaceGC::can_expand(words, is_class) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	347 MetaspaceGC::allowed_expansion() >= words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	348 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	349 }
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 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	353 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	354
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	355 // 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	356 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	357 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	358
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	359 // 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	360 // 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	361 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	362 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	363 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	364 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	365
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	366 _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	367 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	368 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	369 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	370 // 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	371 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	372 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	374 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	375 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	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);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	378 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	379
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	380 if (_rs.is_reserved()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	381 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	382 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	383 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	384 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	385
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	386 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	387 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	390 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	391 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	392 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	393 while (chunk < invalid_chunk ) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	394 assert(chunk->is_tagged_free(), "Should be tagged free");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	395 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	396 chunk_manager->remove_chunk(chunk);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	397 assert(chunk->next() == NULL &&
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	398 chunk->prev() == NULL,
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	399 "Was not removed from its list");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	400 chunk = (Metachunk*) next;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	401 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	402 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	403
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	404 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	405 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	406 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	407 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	408 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	409 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	410 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	411 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	412 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	413 // counted.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	414 if (!chunk->is_tagged_free()) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	415 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	416 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	417 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	418 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	419 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	420 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	421 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	422
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	423 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	425 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	430
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	436 // 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	437 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	439 // 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	440 size_t _reserved_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	441 size_t _committed_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	442
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	443 // Number of virtual spaces
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451 _virtual_space_list = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	457 void link_vs(VirtualSpaceNode* new_entry);
6725 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 // 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	460 // 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	461 // 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	462 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	463
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	468 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	469
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	470 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	471 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	472 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	473
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	474 bool expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	475 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	476 size_t preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	477
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	478 bool expand_by(size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	479 size_t preferred_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	487 bool initialization_succeeded() { return _virtual_space_list != NULL; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	489 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	490 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	491 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	492 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	493
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	494 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	495 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	496 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	497 void dec_committed_words(size_t v);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	498 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	499 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	500
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	501 // Unlink empty VirtualSpaceNodes and free it.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	502 void purge(ChunkManager* chunk_manager);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 bool contains(const void *ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 };
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 #endif
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 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 friend class Metadebug;
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 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	548
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 // protects allocations and contains.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	552 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	553 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	554
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 // 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	557 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	558 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	561 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	565 // 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	566 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	567
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	568 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	569 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	570 size_t _allocated_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 // 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	574 // 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	575 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 BlockFreelist _block_freelists;
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 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	582
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	583 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	587
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 return (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
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	592 Metaspace::MetadataType mdtype() { return _mdtype; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	593
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	594 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	595 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	596
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	603
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605 void add_chunk(Metachunk* v, bool make_current);
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	606 void retire_current_chunk();
6725 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 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	610 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	611
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	612 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	613 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	614
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	616 SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	617 Mutex* lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	620 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	621 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	624 bool is_class() { return _mdtype == Metaspace::ClassType; }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	625
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626 // Accessors
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	627 size_t specialized_chunk_size() { return SpecializedChunk; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	628 size_t small_chunk_size() { return (size_t) is_class() ? ClassSmallChunk : SmallChunk; }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	629 size_t medium_chunk_size() { return (size_t) is_class() ? ClassMediumChunk : MediumChunk; }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	630 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	631
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	632 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	633 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	634 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	635 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	636
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	637 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	638
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	641 // 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	642 // 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	643 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	644 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	645 // 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	646 // 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	647 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	648 // 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	649 // 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	650 // 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	651 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	652
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	653 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	654 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	655 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	656 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	657
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	661 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	662 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	663
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	664 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	665 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	666
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	667 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	668
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	669 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	670 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	672
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	674 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	677 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679 // 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	680 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 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	682
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684 // 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	685 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	686 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	688 // Notify memory usage to MemoryService.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	689 void track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	690
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 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	696
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	698 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	699 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	701 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 #endif
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	703
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	704 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	705 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	706
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	707 size_t raw_bytes_size = MAX2(byte_size, sizeof(Metablock));
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	708 raw_bytes_size = align_size_up(raw_bytes_size, Metachunk::object_alignment());
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	709
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	710 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	711 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	712
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	713 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	714 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	716
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	727 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	728 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	729 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	730 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	731 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	732 " container_count_slow() " SIZE_FORMAT,
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	733 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	734 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	735
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	736 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	737 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	738 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	739 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	740
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	741 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	742 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	743 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	744 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	745 " container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	746 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	747 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	748
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	762 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	763 Metablock* free_chunk = ::new (p) Metablock(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	764 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	765 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	766 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	767 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	768 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	769
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	770 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 return 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
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	775 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	776 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	779
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	780 Metablock* free_block =
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	781 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	782 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	783 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	784 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	785
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	786 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	787 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	788 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	789 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	790 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	791
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	792 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	793 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	794 const size_t unused = block_size - word_size;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	795 if (unused >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	796 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	797 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	798
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	799 return new_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	807 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	808
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	809 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	810
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	811 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	813 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	814 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	815 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	816 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	817 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	818
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 return pointer_delta(top(), bottom(), sizeof(MetaWord));
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 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825 return pointer_delta(end(), bottom(), sizeof(MetaWord));
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
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	828 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	829 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	830 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	831
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	832 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	833 // 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	834 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835 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	836 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	838 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	839
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	840 // 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	841 // commit granularity to enforce the following condition.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	842 // 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	843 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	844 "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	845
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	847 if (TraceMetadataChunkAllocation) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	848 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	849 // 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	850 print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	851 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	852 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	855 // 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	856 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	857
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	858 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	859 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	860 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	861 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	862
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	864 // 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	865 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	866 size_t min_bytes = min_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	867 size_t preferred_bytes = preferred_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	868
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	869 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	870
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	871 if (uncommitted < min_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	872 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	874
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	875 size_t commit = MIN2(preferred_bytes, uncommitted);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	876 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	877
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	878 assert(result, "Failed to commit memory");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	879
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 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	884 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	885 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	886 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	887 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	888 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	889 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	892 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	893
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	898 // 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	899 // 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	900 // 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	901 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	902 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	903
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	904 // 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	905 // 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	906 // committed_size and actual_committed_size agrees.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	907 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	908
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	909 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	910 Metaspace::commit_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	911 if (result) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	912 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	913 "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	914
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	917 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	918
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	919 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	920 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	921 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	922 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	923 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	924 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	925 _rs.size() / BytesPerWord));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	928 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	929 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	930
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	935 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	936 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	937 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	938 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	939 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	941 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	942 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	943
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	944 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	948 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	949 #endif // ASSERT
6725 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 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	962 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	963 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	964 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	965 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	966 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	967 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	968 _reserved_words = _reserved_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	969 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	970
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	971 #define assert_committed_below_limit() \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	972 assert(MetaspaceAux::committed_bytes() <= MaxMetaspaceSize, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	973 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	974 " limit (MaxMetaspaceSize): " SIZE_FORMAT, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	975 MetaspaceAux::committed_bytes(), MaxMetaspaceSize));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	976
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	977 void VirtualSpaceList::inc_committed_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	978 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	979 _committed_words = _committed_words + v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	980
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	981 assert_committed_below_limit();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	982 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	983 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	984 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	985 _committed_words = _committed_words - v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	986
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	987 assert_committed_below_limit();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	988 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	989
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	990 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	991 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	992 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	993 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	994 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	995 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	996 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	997 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	998
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	999 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1000 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1001 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1002 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1003 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1004 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1005 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1006 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1007
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1008 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1009 dec_free_chunks_total(chunk->word_size());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1010 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1011
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1012 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1013 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1014 // the node from their respective freelists.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1015 void VirtualSpaceList::purge(ChunkManager* chunk_manager) {
10175 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 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1018 // 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	1019 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1020 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1021 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1022 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1023 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1024 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1025 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1027 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1028 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1029 if (prev_vsl == vsl) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1030 // 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	1031 assert(vsl == virtual_space_list(), "Expected to be the first node");
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1033 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1034 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1035 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1036
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1037 vsl->purge(chunk_manager);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1038 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1039 dec_committed_words(vsl->committed_words());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1040 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1041 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1042 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1043 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1044 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1045 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1046 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1047 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1048 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1049 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1050 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1051 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1052 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1053 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1054 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1055 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1056 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1057 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1058
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1059 VirtualSpaceList::VirtualSpaceList(size_t word_size) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1060 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1061 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1062 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1063 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1064 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1065 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1066 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1067 Mutex::_no_safepoint_check_flag);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1068 create_new_virtual_space(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1069 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1070
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1071 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1072 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1073 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1074 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1075 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1076 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1077 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1078 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1079 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1080 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1081 bool succeeded = class_entry->initialize();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1082 if (succeeded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1083 link_vs(class_entry);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1084 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1085 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1086
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1087 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1088 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	1089 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1090
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1091 // 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	1092 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	1093 assert_lock_strong(SpaceManager::expand_lock());
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1094
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1095 if (is_class()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1096 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	1097 " 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	1098 " 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	1099 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1100 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1101
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1102 if (vs_word_size == 0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1103 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	1104 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1105 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1106
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1107 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1108 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	1109 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	1110
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1111 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1112 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1113 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1114 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1115 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1116 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1117 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	1118 "Reserved memory size differs from requested memory size");
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1119 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1120 OrderAccess::storestore();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1121 link_vs(new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1122 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1123 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1124 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1125
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1126 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1127 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1128 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1129 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1130 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1131 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1132 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	1133 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	1134 inc_committed_words(new_entry->committed_words());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1135 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1136 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1137 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1138 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1139 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1140 VirtualSpaceNode* vsl = current_virtual_space();
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1141 vsl->print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1142 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1143 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1144
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1145 bool VirtualSpaceList::expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1146 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1147 size_t preferred_words) {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1148 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1149
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1150 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	1151
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1152 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1153
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1154 // 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	1155 assert(after >= before, "Inconsistency");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1156 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1157
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1158 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1159 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1160
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1161 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	1162 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	1163 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	1164 assert(min_words <= preferred_words, "Invalid arguments");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1165
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1166 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	1167 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1168 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1169
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1170 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	1171 if (allowed_expansion_words < min_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1172 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1173 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1174
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1175 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	1176
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1177 // 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	1178 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	1179 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1180 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1181 if (vs_expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1182 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1183 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1184
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1185 // Get another virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1186 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	1187 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	1188
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1189 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	1190 if (current_virtual_space()->is_pre_committed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1191 // 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	1192 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	1193 "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	1194 "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	1195 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1196 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1197
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1198 return expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1199 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1200 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1201 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1202
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1203 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1204 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1205
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1206 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	1207 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1208 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1209
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1210 // Allocate a chunk out of the current virtual space.
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1211 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	1212
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1213 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1214 return next;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1215 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1216
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1217 // 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	1218 // 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	1219
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1220 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	1221 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	1222 if (min_word_size >= preferred_word_size) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1223 // Can happen when humongous chunks are allocated.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1224 preferred_word_size = min_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1225 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1226
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1227 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	1228 if (expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1229 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	1230 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	1231 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1232
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1233 return next;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1234 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1235
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1236 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1237 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1238 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1239 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1240 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1241 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1243 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1244 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1245
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1246 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1247 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1248 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1249 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1250 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1251 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1252 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1253 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1255 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1256 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1257
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1258
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1259 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1260
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1261 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1262 // 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	1263 // 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	1264 // 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	1265 // 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	1266 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1267 // 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	1268 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1269 // 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	1270 // 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	1271 // 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	1272 // 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	1273 // 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	1274 // 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	1275 // 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	1276 // 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	1277 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1278
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1279 // 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	1280 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1281 // 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	1282 // 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	1283 // 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	1284 // plus some.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1285 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	1286 size_t min_delta = MinMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1287 size_t max_delta = MaxMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1288 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	1289
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1290 if (delta <= min_delta) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1291 delta = min_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1292 } else if (delta <= max_delta) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1293 // 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	1294 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1295 // for this allocation.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1296 delta = max_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1297 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1298 // 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	1299 // so increase by the minimum.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1300 delta = delta + min_delta;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1301 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1302
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1303 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	1304
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1305 return delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1306 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1307
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1308 size_t MetaspaceGC::capacity_until_GC() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1309 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	1310 assert(value >= MetaspaceSize, "Not initialied properly?");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1311 return value;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1312 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1313
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1314 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	1315 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	1316
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1317 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	1318 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1319
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1320 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	1321 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	1322
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1323 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	1324 }
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 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	1327 // 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	1328 if (is_class && Metaspace::using_class_space()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1329 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	1330 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	1331 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	1332 }
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1333 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1334
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1335 // 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	1336 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1337 if (committed_bytes + word_size * BytesPerWord > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1338 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1339 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1340
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1341 return true;
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::allowed_expansion() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1345 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1346
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1347 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	1348
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1349 // 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	1350 // 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	1351 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	1352 return left_until_max / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1353 }
12838 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 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	1356
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1357 if (capacity_until_gc <= committed_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1358 return 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1359 }
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 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	1362 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	1363
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1364 return left_to_commit / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1365 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1366
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1367 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1368 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1369 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1370 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1371
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1372 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	1373 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	1374
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1375 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1376 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	1377
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1378 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	1379 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1380 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1381 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1382 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1383 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1384
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1385 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1386 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1387 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1388 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1389 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1390 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1391 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1392 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1393 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1394 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1395 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1396
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1397
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1398 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1399 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1400 // 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	1401 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1402 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	1403 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	1404 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1405 if (expand_bytes >= MinMetaspaceExpansion) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1406 MetaspaceGC::inc_capacity_until_GC(expand_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1407 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1408 if (PrintGCDetails && Verbose) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1409 size_t new_capacity_until_GC = capacity_until_GC;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1410 gclog_or_tty->print_cr(" expanding:"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1411 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1412 " expand_bytes: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1413 " MinMetaspaceExpansion: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1414 " new metaspace HWM: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1415 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1416 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1417 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1418 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1419 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1420 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1421 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1422
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1423 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1424 // 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	1425 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	1426 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	1427 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1428
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1429 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1430 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1431 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1432 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	1433 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	1434 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	1435 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1436 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1437 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1438 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1439 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1440 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1441 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1442 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1443 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1444 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1445 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1446 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1447 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1449
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1450 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1451 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1452
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1453 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1454 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1455 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1456 // 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	1457 // 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	1458 // 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	1459 // 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	1460 // 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	1461 // 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	1462 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	1463
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1464 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	1465
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1466 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1467 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	1468 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1469 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1470 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1471 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1472 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1473 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1474 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1475 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1478 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1479 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 maximum_desired_capacity / (double) K);
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 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1483 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1486 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1489 MinMetaspaceExpansion / (double) K);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1492 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1493
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1494 // 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	1495 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1496 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1497 MetaspaceGC::dec_capacity_until_GC(shrink_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1498 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1499 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1500
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1501 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1503 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1504 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1505 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1506 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	1507 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1510 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1511 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1512 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1513 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1514 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1515 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1516 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1517 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1518 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1519 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1520 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1521 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1524 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1525 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1527 #endif
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 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1530
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1531 size_t ChunkManager::free_chunks_total_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1533 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1534
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1535 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1536 return free_chunks_total_words() * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1538
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1544 // 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	1545 // 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	1546 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1548 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1549 return _free_chunks_count;
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1552 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1555 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	1556 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1557 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1558 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1559
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1560 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1562 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1563 locked_verify_free_chunks_total();
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 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1567 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1568 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1569 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	1570 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1572 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1573
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1576 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1577 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1579 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1581
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1582 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1583 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1584 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1585 locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1586 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1587
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1589 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1590 locked_verify_free_chunks_total();
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_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1595 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	1596 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1597 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1598
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1599 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1600 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1601 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	1602 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1603 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1605 return &_free_chunks[index];
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1608 // 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	1609 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1610 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1611 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1612 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1613 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	1614 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1615
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1616 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1617 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1618 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1619
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1620 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1621 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1622 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1624 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1625
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1626 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1627 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1628 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1629 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	1630 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1631 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1632 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1634 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1636 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1637 return 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 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	1641 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1642 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1643 return free_chunks(index);
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1649 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1650
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1651 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1652 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1653 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1654 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1655
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1656 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1657
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1658 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1659 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1660 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1661
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662 // 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	1663 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1664
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1665 if (TraceMetadataChunkAllocation && Verbose) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1666 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	1667 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	1668 free_list, chunk, chunk->word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1670 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1671 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1672 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1673 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1674
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1675 if (chunk == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1676 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1677 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1678
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1679 if (TraceMetadataHumongousAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1680 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	1681 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	1682 SIZE_FORMAT " for requested size " SIZE_FORMAT
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1683 " waste " SIZE_FORMAT,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1684 chunk->word_size(), word_size, waste);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1685 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1686 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1687
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1688 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1689 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	1690
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1691 // 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	1692 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1693 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1694 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1695 // 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	1696 // work.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1697 chunk->set_is_tagged_free(false);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1698 #endif
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1699 chunk->container()->inc_container_count();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1700
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1701 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1702 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1703 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1704
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1705 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1706 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	1707 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1708
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1709 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1710 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1711 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1712 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1713 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1714
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1715 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1716 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1717 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1718 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1719 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1720 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1721 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	1722 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1723 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1724 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1725 }
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1726 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	1727 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	1728 this, chunk, chunk->word_size(), list_count);
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1729 locked_print_free_chunks(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1730 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1731
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1732 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1733 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1734
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1735 void ChunkManager::print_on(outputStream* out) const {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1736 if (PrintFLSStatistics != 0) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1737 const_cast<ChunkManager *>(this)->humongous_dictionary()->report_statistics();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1738 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1739 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1740
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1741 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1742
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1743 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	1744 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1745 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1746 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1747 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1748 *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	1749 *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	1750 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1751 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1752 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1753 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1754 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1755 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1756 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1757 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1758 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1759 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1760 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1761 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1762 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1763 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1764 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1765 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1766 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1767 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1768 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1769 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	1770 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	1771 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1772 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	1773 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1774
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1775 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	1776 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1777 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1778 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	1779 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1780 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1781 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1782 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1783 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1784 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1785 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1786 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1787
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1788 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	1789 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1790 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1791 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	1792 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1793 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1794
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1795 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1796 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1797
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1798 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	1799 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1800 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1801 // 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	1802 // 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	1803 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	1804 if (chunk != current_chunk()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1805 result += chunk->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1806 }
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	1807 chunk = chunk->next();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1808 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1809 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1810 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1811
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1812 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	1813 // 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	1814 // 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	1815 // 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	1816 // 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	1817 // 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	1818 // 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	1819 // 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	1820 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1821 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1822 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1823 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1824 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	1825 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1826 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	1827 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1828 while (chunk != NULL) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1829 sum += chunk->word_size();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1830 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1831 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1832 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1833 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1834 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1835 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1836
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1837 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1838 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1839 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	1840 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1841 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1842
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1843 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1844 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1845
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1846 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	1847 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1848 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1849 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1850 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1851 chunk = chunk->next();
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 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1854 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1855
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1856
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1857 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	1858 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1859 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1860 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	1861 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1862 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1863 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1864 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1865 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1866 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1867 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1868 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1869
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1870 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	1871
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1872 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	1873 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1874 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1875 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1876 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1877 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1878 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1879 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1880 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1881 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1882 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1883
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1884 chunk_manager()->locked_print_free_chunks(st);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1885 chunk_manager()->locked_print_sum_free_chunks(st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1886 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1887
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1888 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	1889
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1890 // 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	1891 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1892 // 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	1893 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1894 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895 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	1896 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	1897 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	1898 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	1899 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1901 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1902 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1903 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1904
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1905 // Might still need a humongous chunk. Enforce an
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1906 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1907 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1908 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1909 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1910 HumongousChunkGranularity);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1911 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1912 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	1913
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1914 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1915 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1916 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	1917 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1918 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1919 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1920 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1921 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1922 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	1923 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	1924 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1925 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	1926 Metachunk::overhead());
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 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1929 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1930
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1931 void SpaceManager::track_metaspace_memory_usage() {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1932 if (is_init_completed()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1933 if (is_class()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1934 MemoryService::track_compressed_class_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1935 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1936 MemoryService::track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1937 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1938 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1939
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1940 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	1941 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1942 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1943 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1944 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1945 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1946 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	1947
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1948 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1949 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1950 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1951 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1952 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1953 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1954 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1955 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	1956 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1957 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1958 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1960
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1961 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1962 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	1963 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	1964
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1965 MetaWord* mem = NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1966
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1967 // 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	1968 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1969 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1970 // 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	1971 add_chunk(next, false);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1972 mem = next->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1973 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1974
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1975 // Track metaspace memory usage statistic.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1976 track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	1977
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1978 return mem;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1979 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1980
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1981 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1982
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1983 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1984 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1985 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1986 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	1987 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1988 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	1989 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1990 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	1991 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1992 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1993 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1994 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1995 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1996 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1997 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1998 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1999 }
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
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2002 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2003 Mutex* lock) :
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2004 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2005 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2006 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2007 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2008 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2009 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2010 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2011 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2012
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2013 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	2014 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2015 // 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	2016 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2017 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2018 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2019 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2020 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2021 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2022 // 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	2023 // 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	2024 // 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	2025 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2026 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2027 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2028
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2029 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	2030 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2031 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2032 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2033 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2034 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2035
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2036 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2037 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2038 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	2039 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2040 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	2041 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2042
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2043 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2044 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2045 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	2046 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2047 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2048 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2049 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2050 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2051 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2052 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2053
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2054 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2055 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2056 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2057 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2058 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2059 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	2060 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2061 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2062
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2063 // 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	2064 // 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	2065 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2066 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2067 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2068 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2069 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2070 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2071 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2072 Metachunk* next = cur->next();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2073 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	2074 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2075 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2076 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2077 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2078
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2079 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2080 // 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	2081 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	2082 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	2083 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2084 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	2085
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2086 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2087 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2088
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2089 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2090
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2091 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2092
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2093 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2094 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2095 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2096 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2097
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2098 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2099 // 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	2100
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2101 // 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	2102 // below.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2103 chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2104 sum_count_in_chunks_in_use());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2105
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2106 // 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	2107 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2108
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2109 // 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	2110 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2111
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2112 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	2113 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2114 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	2115 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2116 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2117 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2118 Metachunk* chunks = chunks_in_use(i);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2119 chunk_manager()->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2120 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2121 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2122 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	2123 chunk_manager()->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2124 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2125 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2126 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	2127 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2128
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2129 // 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	2130 // 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	2131 // 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	2132
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2133 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2134 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2135 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	2136 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2137 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2138 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2139 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2140 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2141 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2142
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2143 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2144 #ifdef ASSERT
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2145 humongous_chunks->set_is_tagged_free(true);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2146 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2147 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2148 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	2149 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2150 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2151 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2152 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2153 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2154 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2155 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	2156 " granularity %d",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2157 humongous_chunks->word_size(), HumongousChunkGranularity));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2158 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2159 humongous_chunks->container()->dec_container_count();
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2160 chunk_manager()->humongous_dictionary()->return_chunk(humongous_chunks);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2161 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2162 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2163 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2164 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2165 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	2166 chunk_manager()->humongous_dictionary()->total_count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2167 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2168 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2169 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2170 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2171
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2172 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	2173 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2174 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2175 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2176 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2177 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2178 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2179 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2180 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2181 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2182 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2183 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2184 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2185 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2186
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2187 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2188 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2189 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2190 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2191 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2192 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2193 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2194 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2195 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2196 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2197 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2198 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2199 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2200 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2201 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2202 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2203 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2204 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2205
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2206 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	2207 assert_lock_strong(_lock);
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2208 size_t raw_word_size = get_raw_word_size(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2209 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2210 assert(raw_word_size >= min_size,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2211 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	2212 block_freelists()->return_block(p, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2213 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2214
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2215 // 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	2216 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	2217
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2218 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2219 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	2220
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2221 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2222
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2223 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2224 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 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	2226
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227 if (index != HumongousIndex) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2228 retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2229 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2230 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	2231 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2232 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2233 // 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	2234 // 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	2235 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2236 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2237 // 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	2238 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2239 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2240 // 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	2241 // 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	2242 // 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	2243 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2244 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2245 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2246
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2247 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	2248 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2249
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2250 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2251 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2252
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2253 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2254 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2255 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2256 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2257 new_chunk->print_on(gclog_or_tty);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2258 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	2259 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2260 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2261
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2262 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2263 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2264 size_t remaining_words = current_chunk()->free_word_size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2265 if (remaining_words >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2266 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	2267 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2268 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2269 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2270 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2271
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2272 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	2273 size_t grow_chunks_by_words) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2274 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2275 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	2276
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2277 if (next == NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2278 next = vs_list()->get_new_chunk(word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2279 grow_chunks_by_words,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2280 medium_chunk_bunch());
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2281 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2282
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2283 if (TraceMetadataHumongousAllocation && next != NULL &&
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2284 SpaceManager::is_humongous(next->word_size())) {
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2285 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2286 PTR_FORMAT, next->word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2287 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2288
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2289 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2290 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2291
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2292 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2293 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2294
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	2295 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	2296 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2297 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2298 // 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	2299 // 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	2300 // 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	2301 // 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	2302 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2303 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2304 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2305 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2306 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2307 p = allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2308 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2309
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2310 return p;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2311 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2312
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2313 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2314 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2315 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2316 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2317 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2318 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2319 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2320 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2321 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2322 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2323 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2324
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2325 // 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	2326 // 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	2327 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2328 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2329 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	2330 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2331 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	2332 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2333
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2334 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2335 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2336 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2337
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2338 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2339 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2340 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2341
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2342 if (result != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2343 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2344 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2345 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2346 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2347
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2348 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2351 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2352 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2353 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2354 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2355 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2356 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	2357 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2358 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2359 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2360 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2361 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2362 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2363 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2364 }
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
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2367 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2368 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2369 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2370 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2371 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2372 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2373 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2374 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2375
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2376 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2377 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2378 // 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	2379 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	2380 "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	2381 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	2382 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	2383 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2384 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	2385 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2386
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2387 #endif
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 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2390 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2391 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2392 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2393 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2394 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2395
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2396 // 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	2397 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2398 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2399 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2400 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2401 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2402 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2403 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2404 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2405 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2406 used += curr->used_word_size();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2407 capacity += curr->word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2408 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2409 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2410 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2411
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2412 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2413 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2414 }
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2415
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2416 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	2417 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2418 waste -= free;
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 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	2421 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2422 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2423 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2424
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2425 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2426 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2427 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2428 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2429 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2430 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2431 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2433 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2435 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2436 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2437 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2438
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2439 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2440
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2441
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2442 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2443 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	2444
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2445 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2446 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2447 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2448 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2449
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2450 size_t MetaspaceAux::free_bytes() {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2451 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	2452 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2453
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2454 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	2455 assert_lock_strong(SpaceManager::expand_lock());
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2456 assert(words <= allocated_capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2457 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	2458 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2459 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2460 _allocated_capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2461 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2462
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2463 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	2464 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2465 // Needs to be atomic
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2466 _allocated_capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2467 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2468
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2469 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	2470 assert(words <= allocated_used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2471 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	2472 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2473 words, mdtype, allocated_used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2474 // 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	2475 // 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	2476 // 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	2477 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2478 jlong minus_words = (jlong) - (jlong) words;
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2479 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	2480 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2481
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2482 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	2483 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2484 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2485 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2486 // threads so must be done atomically.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2487 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	2488 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2489
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2490 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	2491 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2492 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2493 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2494 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2495 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2496 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2497 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2498 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2499 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2500 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2501 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2502
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2503 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	2504 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2505 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2506 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2507 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2508 if (msp != NULL) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2509 free += msp->free_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2510 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2511 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2512 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2513 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2514
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2515 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2516 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2517 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2518 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2519 // 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	2520 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2521 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2522 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2523 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2524 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2525 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2526 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2527 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2528 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2529 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2530 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2531
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2532 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2533 #ifdef PRODUCT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2534 // Use allocated_capacity_bytes() in PRODUCT instead of this function.
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2535 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2536 #endif
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2537 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2538 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2539 assert(allocated_capacity_bytes() == class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2540 err_msg("bad accounting: allocated_capacity_bytes() " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2541 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2542 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2543 allocated_capacity_bytes(), class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2544 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2545
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2546 return class_capacity + non_class_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2547 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2548
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2549 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2550 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	2551 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	2552 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2553
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2554 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	2555 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	2556 return list == NULL ? 0 : list->committed_bytes();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2557 }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2558
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2559 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2560
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2561 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	2562 ChunkManager* chunk_manager = Metaspace::get_chunk_manager(mdtype);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2563 if (chunk_manager == NULL) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2564 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2565 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2566 chunk_manager->slow_verify();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2567 return chunk_manager->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2568 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2569
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2570 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2571 return free_chunks_total_words(mdtype) * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2572 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2573
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2574 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2575 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2576 free_chunks_total_words(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2577 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2578
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2579 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2580 return free_chunks_total_words() * BytesPerWord;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2581 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2582
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2583 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	2584 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2585 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2586 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2587 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2588 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2589 prev_metadata_used,
11037 df7e1c0e3dc1 8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity jmasa parents: 10376 diff changeset	2590 allocated_used_bytes(),
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2591 reserved_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2592 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2593 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2594 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2595 "(" SIZE_FORMAT "K)",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2596 prev_metadata_used/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2597 allocated_used_bytes()/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2598 reserved_bytes()/K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2599 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2601 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2602 }
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 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2605 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2606 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2607
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2608 out->print_cr(" Metaspace "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2609 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2610 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2611 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2612 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2613 allocated_used_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2614 allocated_capacity_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2615 committed_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2616 reserved_bytes()/K);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2617
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2618 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2619 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2620 out->print_cr(" class space "
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2621 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2622 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2623 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2624 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2625 allocated_used_bytes(ct)/K,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2626 allocated_capacity_bytes(ct)/K,
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2627 committed_bytes(ct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2628 reserved_bytes(ct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2629 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2630 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2631
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2632 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2633 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2634 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2635 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	2636 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	2637 size_t used_bytes = used_bytes_slow(mdtype);
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2638 size_t free_bytes = free_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2639 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2640 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2641 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	2642 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2643 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2644 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2645 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2646 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2647 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2648 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2649 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	2650 // 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	2651 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	2652 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2653
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2654 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2655 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2656 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2657 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	2658 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	2659 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2660 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2661 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2662 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2663 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	2664 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	2665 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	2666 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	2667 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	2668 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	2669 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	2670 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2671 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2672 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2673 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2674 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2675 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2676 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2677 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2678 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2679 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2680
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2681 // 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	2682 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	2683 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	2684 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	2685
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2686 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2687 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2688 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2689 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2690 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	2691 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	2692 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	2693 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	2694 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	2695 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	2696 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	2697 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2698 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2699 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	2700 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	2701 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	2702 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	2703 "large count " SIZE_FORMAT,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2704 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	2705 small_waste, medium_count, medium_waste, humongous_count);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2706 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2707 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2708 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2709 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2710
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2711 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2712 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2713 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2714 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2715 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2716 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2717 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2718
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2719 void MetaspaceAux::verify_free_chunks() {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2720 Metaspace::chunk_manager_metadata()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2721 if (Metaspace::using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2722 Metaspace::chunk_manager_class()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2723 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2724 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2725
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2726 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2727 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2728 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	2729 // 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	2730 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	2731 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	2732 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	2733 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2734 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2735 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2736 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2737 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2738 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	2739 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2740 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2741 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2742 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	2743 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2744 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2745 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2746
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2747 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2748 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2749 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	2750 // 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	2751 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	2752 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	2753 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2754 " used_bytes_slow()" SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2755 allocated_used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2756 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2757 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2758 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2759 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	2760 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2761 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2762 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2763 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	2764 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2765 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2766 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2767
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2768 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2769 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2770 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2771 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2772
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2773
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2774 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2775
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2776 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	2777 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	2778
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2779 size_t Metaspace::_commit_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2780 size_t Metaspace::_reserve_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2781
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2782 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2783 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2784 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2785
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2786 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2787 delete _vsm;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2788 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2789 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2790 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2791 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2792
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2793 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2794 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2795
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2796 ChunkManager* Metaspace::_chunk_manager_metadata = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2797 ChunkManager* Metaspace::_chunk_manager_class = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2798
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2799 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2800
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2801 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2802 static const uint64_t UnscaledClassSpaceMax = (uint64_t(max_juint) + 1);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2803
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2804 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	2805 // 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	2806 // 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	2807 // (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	2808 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2809 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2810 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2811 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2812 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2813 (address)(metaspace_base + compressed_class_space_size()));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2814 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2815 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2816 higher_address = metaspace_base + compressed_class_space_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2817 lower_base = metaspace_base;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2818
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2819 uint64_t klass_encoding_max = UnscaledClassSpaceMax << LogKlassAlignmentInBytes;
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2820 // 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	2821 if (higher_address <= (address)klass_encoding_max) {
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2822 lower_base = 0; // effectively lower base is zero.
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2823 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2824 }
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2825
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2826 Universe::set_narrow_klass_base(lower_base);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2827
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2828 if ((uint64_t)(higher_address - lower_base) < UnscaledClassSpaceMax) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2829 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2830 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2831 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2832 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2833 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2834 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2835
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2836 // 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	2837 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2838 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	2839 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2840 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2841 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2842 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2843 (address)(metaspace_base + compressed_class_space_size()));
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2844 return ((uint64_t)(higher_address - lower_base) < UnscaledClassSpaceMax);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2845 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2846
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2847 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2848 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	2849 assert(using_class_space(), "called improperly");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2850 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2851 assert(compressed_class_space_size() < KlassEncodingMetaspaceMax,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2852 "Metaspace size is too big");
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2853 assert_is_ptr_aligned(requested_addr, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2854 assert_is_ptr_aligned(cds_base, _reserve_alignment);
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2855 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	2856
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2857 // 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	2858 bool large_pages = false;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2859
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2860 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	2861 _reserve_alignment,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2862 large_pages,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2863 requested_addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2864 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2865 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2866 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	2867
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2868 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2869 // 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	2870 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2871 char *addr = requested_addr;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2872 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	2873 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	2874 addr = addr + increment;
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2875 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	2876 _reserve_alignment, large_pages, addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2877 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2878 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2879
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2880 // 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	2881 // 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	2882 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2883 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2884 // So, UseCompressedClassPointers cannot be turned off at this point.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2885 if (!metaspace_rs.is_reserved()) {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2886 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	2887 _reserve_alignment, large_pages);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2888 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2889 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	2890 compressed_class_space_size()));
12056 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 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2893 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2894
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2895 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2896 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2897
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2898 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2899 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	2900 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2901 "Could not allocate metaspace at a compatible address");
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
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2904 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2905 UseSharedSpaces ? (address)cds_base : 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2906
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2907 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2908
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2909 if (PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2910 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	2911 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2912 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	2913 compressed_class_space_size(), metaspace_rs.base(), requested_addr);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2914 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2915 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2916
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2917 // 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	2918 // 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	2919 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2920 // 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	2921 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2922 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2923 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2924 _class_space_list = new VirtualSpaceList(rs);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2925 _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	2926
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2927 if (!_class_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2928 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	2929 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2930 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2931
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2932 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2933
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2934 // Align down. If the aligning result in 0, return 'alignment'.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2935 static size_t restricted_align_down(size_t size, size_t alignment) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2936 return MAX2(alignment, align_size_down_(size, alignment));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2937 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2938
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2939 void Metaspace::ergo_initialize() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2940 if (DumpSharedSpaces) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2941 // 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	2942 FLAG_SET_ERGO(bool, UseLargePagesInMetaspace, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2943 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2944
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2945 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	2946 if (UseLargePages && UseLargePagesInMetaspace) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2947 page_size = os::large_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2948 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2949
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2950 _commit_alignment = page_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2951 _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	2952
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2953 // 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	2954 // 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	2955 // 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	2956 // java.lang.management.MemoryUsage API.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2957 //
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2958 // 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	2959 // 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	2960 // alignment depends on other flags being parsed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2961 MaxMetaspaceSize = restricted_align_down(MaxMetaspaceSize, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2962
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2963 if (MetaspaceSize > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2964 MetaspaceSize = MaxMetaspaceSize;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2965 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2966
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2967 MetaspaceSize = restricted_align_down(MetaspaceSize, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2968
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2969 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	2970
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2971 if (MetaspaceSize < 256*K) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2972 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	2973 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2974
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2975 MinMetaspaceExpansion = restricted_align_down(MinMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2976 MaxMetaspaceExpansion = restricted_align_down(MaxMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2977
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2978 CompressedClassSpaceSize = restricted_align_down(CompressedClassSpaceSize, _reserve_alignment);
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	2979 set_compressed_class_space_size(CompressedClassSpaceSize);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2980 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2981
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2982 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2983 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2984 int max_alignment = os::vm_page_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2985 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2986
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2987 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2988
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2989 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2990 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2991 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	2992 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2993 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2994
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2995 // 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	2996 // 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	2997 // remainder is the misc code and data chunks.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2998 cds_total = FileMapInfo::shared_spaces_size();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2999 cds_total = align_size_up(cds_total, _reserve_alignment);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3000 _space_list = new VirtualSpaceList(cds_total/wordSize);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3001 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3002
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3003 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3004 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	3005 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3006
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3007 #ifdef _LP64
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3008 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	3009 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	3010 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	3011 SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3012 "klass limit: " SIZE_FORMAT, cds_total, compressed_class_space_size(),
209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3013 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	3014 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3015
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3016 // 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	3017 // properly when creating the shared archive.
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3018 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3019 "UseCompressedOops and UseCompressedClassPointers must be set");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3020 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	3021 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3022 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	3023 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3024 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3025
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3026 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3027 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3028
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3029 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3030 // 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	3031 // 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	3032 // the addresses don't conflict)
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3033 address cds_address = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3034 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3035 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3036 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3037
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3038 // 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	3039 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3040 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3041 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3042 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3043 FileMapInfo::set_current_info(mapinfo);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3044 cds_total = FileMapInfo::shared_spaces_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3045 cds_address = (address)mapinfo->region_base(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3046 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3047 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3048 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3049 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3050 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3051
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3052 #ifdef _LP64
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3053 // If UseCompressedClassPointers is set then allocate the metaspace area
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3054 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3055 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3056 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3057 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	3058 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	3059 allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3060 } else {
13000 209aa13ab8c0 8024927: Nashorn performance regression with CompressedOops coleenp parents: 12998 diff changeset	3061 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	3062 allocate_metaspace_compressed_klass_ptrs(base, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3063 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3064 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3065 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3066
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3067 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3068 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3069 _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	3070 // 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	3071 // 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	3072 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3073 _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	3074 (CompressedClassSpaceSize/BytesPerWord)*2);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3075 _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	3076 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3077 // of the boot class loader size.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3078 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	3079 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	3080
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3081 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3082 _space_list = new VirtualSpaceList(word_size);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3083 _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	3084
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3085 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3086 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	3087 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3088 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3089
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3090 MetaspaceGC::initialize();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3091 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3092
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3093 Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3094 size_t chunk_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3095 size_t chunk_bunch) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3096 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3097 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	3098 if (chunk != NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3099 return chunk;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3100 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3101
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3102 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	3103 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3104
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3105 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3106
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3107 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3108 "Metadata VirtualSpaceList has not been initialized");
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3109 assert(chunk_manager_metadata() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3110 "Metadata ChunkManager has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3111
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3112 _vsm = new SpaceManager(NonClassType, lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3113 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3114 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3115 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3116 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3117 size_t class_word_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3118 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3119
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3120 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3121 assert(class_space_list() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3122 "Class VirtualSpaceList has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3123 assert(chunk_manager_class() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3124 "Class ChunkManager has not been initialized");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3125
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3126 // Allocate SpaceManager for classes.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3127 _class_vsm = new SpaceManager(ClassType, lock);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3128 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3129 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3130 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3131 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3132
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3133 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	3134
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3135 // Allocate chunk for metadata objects
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3136 Metachunk* new_chunk = get_initialization_chunk(NonClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3137 word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3138 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3139 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	3140 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3141 // 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	3142 vsm()->add_chunk(new_chunk, true);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3145 // Allocate chunk for class metadata objects
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3146 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3147 Metachunk* class_chunk = get_initialization_chunk(ClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3148 class_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3149 class_vsm()->medium_chunk_bunch());
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3150 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3151 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3152 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3153 }
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3154
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3155 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3156 _alloc_record_tail = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3157 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3158
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3159 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	3160 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3161 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	3162 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3163
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3164 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3165 // DumpSharedSpaces doesn't use class metadata area (yet)
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3166 // 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	3167 if (is_class_space_allocation(mdtype)) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3168 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3169 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3170 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3171 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3172 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3173
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3174 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	3175 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	3176 assert(delta_bytes > 0, "Must be");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3177
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3178 size_t after_inc = MetaspaceGC::inc_capacity_until_GC(delta_bytes);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3179 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	3180
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3181 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3182 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	3183 " to " SIZE_FORMAT, before_inc, after_inc);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3184 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3185
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3186 return allocate(word_size, mdtype);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3187 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3188
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3189 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3190 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3191 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3192 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	3193 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3194 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3195
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3196 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3197 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3198 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	3199 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3200 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3201 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3202 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3203
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	3204 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3205 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3206 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	3207 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3208 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3209 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3210 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3211
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3212 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3213 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3214 // 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	3215 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3216 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3217 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3218 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3219 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	3220 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3221 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3222 }
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
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3225 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	3226 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3227 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3228
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3229 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	3230 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3231 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3232
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3233 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	3234 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3235 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	3236 // 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	3237 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3238 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3239 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3240 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3241 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3242 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3243 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3244 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3245 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3246 class_vsm()->deallocate(ptr, word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3247 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3248 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3249 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3250 } 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	3251 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	3252
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3253 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3254 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3255 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3256 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3257 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3258 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3259 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3260 if (is_class && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3261 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3262 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3263 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3264 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3265 }
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
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3268
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3269 MetaWord* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3270 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3271 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3272 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3273 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3274 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3275
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3276 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	3277 "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	3278
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3279 // 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	3280 // 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	3281 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3282 if (DumpSharedSpaces) {
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3283 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3284 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	3285 MetaWord* result = space->allocate(word_size, NonClassType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3286 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3287 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3288 }
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3289
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3290 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	3291
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3292 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3293 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3294
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3295 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3296 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3297
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3298 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3299
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3300 // Try to allocate metadata.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3301 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	3302
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3303 if (result == NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3304 // Allocation failed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3305 if (is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3306 // 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	3307
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3308 // 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	3309 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	3310 loader_data, word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3311 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3312 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3313
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3314 if (result == NULL) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3315 report_metadata_oome(loader_data, word_size, mdtype, THREAD);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3316 // Will not reach here.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3317 return NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3318 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3319
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3320 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3321 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3322
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3323 return result;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3324 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3325
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3326 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	3327 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	3328 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	3329 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3330
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3331 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	3332 // 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	3333 if (Verbose && TraceMetadataChunkAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3334 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	3335 SIZE_FORMAT, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3336 if (loader_data->metaspace_or_null() != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3337 loader_data->dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3338 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3339 MetaspaceAux::dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3340 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3341
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3342 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	3343 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	3344 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	3345 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	3346 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	3347 (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	3348 CompressedClassSpaceSize;
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3349 }
a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3350
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3351 // -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	3352 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	3353 "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	3354
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3355 report_java_out_of_memory(space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3356
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3357 if (JvmtiExport::should_post_resource_exhausted()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3358 JvmtiExport::post_resource_exhausted(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3359 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3360 space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3361 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3362
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 vm_exit_during_initialization("OutOfMemoryError", space_string);
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
12998 a6177f601c64 8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space hseigel parents: 12906 diff changeset	3367 if (out_of_compressed_class_space) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3368 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	3369 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3370 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	3371 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3372 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3373
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3374 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	3375 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3377 AllocRecord rec = new AllocRecord((address)ptr, type, (int)word_size HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3378 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3379 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3380 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3381 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3382 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3383 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3384 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3385
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3386 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3387 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3388
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3389 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3390
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3391 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3392 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3393 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3394 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3395 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3396 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3397 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3398 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3399
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3400 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3401 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3402 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3403 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3404 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3405
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3406 void Metaspace::purge(MetadataType mdtype) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3407 get_space_list(mdtype)->purge(get_chunk_manager(mdtype));
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3408 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3409
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3410 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3411 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3412 Mutex::_no_safepoint_check_flag);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3413 purge(NonClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3414 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3415 purge(ClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3416 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3417 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3418
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3419 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3420 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3421 if (Verbose) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3422 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3423 if (using_class_space()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3424 class_vsm()->print_on(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3425 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3426 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3427 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3428
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3429 bool Metaspace::contains(const void * ptr) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3430 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3431 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3432 }
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3433 // This is checked while unlocked. As long as the virtualspaces are added
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3434 // at the end, the pointer will be in one of them. The virtual spaces
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3435 // aren't deleted presently. When they are, some sort of locking might
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3436 // be needed. Note, locking this can cause inversion problems with the
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3437 // caller in MetaspaceObj::is_metadata() function.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3438 return space_list()->contains(ptr) \|\|
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3439 (using_class_space() && class_space_list()->contains(ptr));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3440 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3441
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3442 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3443 vsm()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3444 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3445 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3446 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3447 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3448
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3449 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3450 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3451 vsm()->dump(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3452 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3453 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3454 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3455 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3456 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3457
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3458 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3459
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3460 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3461
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3462 class TestMetaspaceAuxTest : AllStatic {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3463 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3464 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3465 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3466
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3467 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3468
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3469 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3470 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3471
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3472 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	3473 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3474 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3475
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3476 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3477 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	3478 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3479 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3480 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3481 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3482
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3483 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3484 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3485
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3486 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3487
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3488 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3489 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3490
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3491 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	3492 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3493 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3494
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3495 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3496 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	3497 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3498 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3499 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3500 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3501
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3502 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	3503 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	3504 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	3505 // 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	3506 // vm_allocation_granularity aligned on Windows.
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3507 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	3508 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	3509 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	3510 }
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3511
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3512 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3513 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3514 test_committed();
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3515 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	3516 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3517 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3518
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3519 void TestMetaspaceAux_test() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3520 TestMetaspaceAuxTest::test();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3521 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3522
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3523 #endif

Mercurial > hg > graal-compiler

annotate src/share/vm/memory/metaspace.cpp @ 13000:209aa13ab8c0