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

annotate src/share/vm/memory/metaspace.cpp @ 12902:bdfbb1fb19ca

8026391: The Metachunk header wastes memory Reviewed-by: coleenp, jmasa

author	stefank
date	Tue, 15 Oct 2013 14:28:51 +0200
parents	a6414751d537
children	94c0343b1887

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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55 // Parameters for stress mode testing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	56 const uint metadata_deallocate_a_lot_block = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 const uint metadata_deallocate_a_lock_chunk = 3;
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	58 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	59
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	62 size_t Metaspace::_class_metaspace_size;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	63
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	65 enum ChunkIndex {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	66 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	67 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	68 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	69 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	70 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	71 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	72 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	73 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	74
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	75 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	76 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	77 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	78 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	79 SmallChunk = 512,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	80 ClassMediumChunk = 4 * K,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	81 MediumChunk = 8 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	82 HumongousChunkGranularity = 8
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	86 assert(i < NumberOfInUseLists, "Out of bound");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	90 volatile intptr_t MetaspaceGC::_capacity_until_GC = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	94 typedef class FreeList<Metachunk> ChunkList;
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 // Manages the global free lists of chunks.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	97 class ChunkManager : public CHeapObj<mtInternal> {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 // Free list of chunks of different sizes.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	100 // SpecializedChunk
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 // HumongousChunk
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	104 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	105
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	106 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	107 ChunkTreeDictionary _humongous_dictionary;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	120 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	121
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	124 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 size_t sum_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127 void locked_verify_free_chunks_total();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	128 void slow_locked_verify_free_chunks_total() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	129 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	130 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	131 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	132 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133 void locked_verify_free_chunks_count();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	134 void slow_locked_verify_free_chunks_count() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	135 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	136 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	137 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	138 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	143 ChunkManager(size_t specialized_size, size_t small_size, size_t medium_size)
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	144 : _free_chunks_total(0), _free_chunks_count(0) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	145 _free_chunks[SpecializedIndex].set_size(specialized_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	146 _free_chunks[SmallIndex].set_size(small_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	147 _free_chunks[MediumIndex].set_size(medium_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	148 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	150 // add or delete (return) a chunk to the global freelist.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152 void chunk_freelist_deallocate(Metachunk* chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	153
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	154 // 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	155 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	156 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	157
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	158 // Remove the chunk from its freelist. It is
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	159 // expected to be on one of the _free_chunks[] lists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	160 void remove_chunk(Metachunk* chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	161
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	162 // 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	163 // of type index.
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	164 void return_chunks(ChunkIndex index, Metachunk* chunks);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	165
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166 // Total of the space in the free chunks list
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	167 size_t free_chunks_total_words();
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	168 size_t free_chunks_total_bytes();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	169
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	170 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	171 size_t free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	172
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173 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	174 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	177 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	178 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	179 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	183 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 // Add and remove from a list by size. Selects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187 // list based on size of chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 void free_chunks_put(Metachunk* chuck);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	190
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	191 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	192 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	193 void slow_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 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 locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	199 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	200 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	201 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	202 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	203 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 void verify_free_chunks_total();
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 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	207 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	208
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	209 void print_on(outputStream* st) const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	210 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	212 // 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	213 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	214 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	215 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	216
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	217 // 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	218 // 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	219 const static int WasteMultiplier = 4;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	220
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	221 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	222 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	223
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	226 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	227
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	228 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	229 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	230 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	231
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	232 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	233 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	235 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	236 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	238 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	243 // A VirtualSpaceList node.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	252 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	255 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	256 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	262 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	263 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	264 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	265
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	268 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	269 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	270 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	271
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	272 // Convenience functions for logical bottom and end
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	273 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	274 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	275
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	276 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	277 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	278
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	279 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	280
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	282 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	292
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	293 // 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	294 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	295
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	297 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	298
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	299 uintx container_count() { return _container_count; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	300 void inc_container_count();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	301 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	302 #ifdef ASSERT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	303 uint container_count_slow();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	304 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	305 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	306
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	307 // 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	308 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309 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	310 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	312 bool initialize();
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 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	315 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	316
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	317 // 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	318 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	319
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	320 // 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	321 // to Virtualspace
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	322 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	323
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	324 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	325 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	326 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	327
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	328 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	330 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	331 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	332
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	333 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	334 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	336 #define assert_is_ptr_aligned(ptr, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	337 assert(is_ptr_aligned(ptr, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	338 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	339 SIZE_FORMAT, ptr, alignment))
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 #define assert_is_size_aligned(size, alignment) \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	342 assert(is_size_aligned(size, alignment), \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	343 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	344 SIZE_FORMAT, size, alignment))
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	345
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	346
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	347 // 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	348 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	349 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	350 size_t words = bytes / BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	351 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	352 if (MetaspaceGC::can_expand(words, is_class) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	353 MetaspaceGC::allowed_expansion() >= words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	354 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	355 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	356 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	357
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	358 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	359 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	360
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	361 // 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	362 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	363 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	364
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	365 // 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	366 // 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	367 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	368 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	369 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	370 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	371
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	372 _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	373 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	374 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	375 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	376 // 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	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 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	380 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	381 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	382
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	383 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	384 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	385
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	386 if (_rs.is_reserved()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	387 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	388 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	389 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	390 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	391
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	392 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	393 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	394 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	395
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	396 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	397 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	398 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	399 while (chunk < invalid_chunk ) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	400 assert(chunk->is_tagged_free(), "Should be tagged free");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	401 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	402 chunk_manager->remove_chunk(chunk);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	403 assert(chunk->next() == NULL &&
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	404 chunk->prev() == NULL,
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	405 "Was not removed from its list");
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	406 chunk = (Metachunk*) next;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	407 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	408 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	409
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	410 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	411 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	412 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	413 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	414 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	415 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	416 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	417 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	418 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	419 // counted.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	420 if (!chunk->is_tagged_free()) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	421 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	422 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	423 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	424 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	425 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	426 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	427 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	428
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	430 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	442 // 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	443 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	445 // 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	446 size_t _reserved_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	447 size_t _committed_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	448
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	449 // Number of virtual spaces
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
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 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 _virtual_space_list = v;
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 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	461 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	462
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	463 void link_vs(VirtualSpaceNode* new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 // 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	466 // 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	467 // 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	468 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	469
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	474 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	475
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	476 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	477 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	478 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	479
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	480 bool expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	481 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	482 size_t preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	483
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	484 bool expand_by(size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	485 size_t preferred_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	491 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	492
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	493 bool initialization_succeeded() { return _virtual_space_list != NULL; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	495 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	496 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	497 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	498 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	499
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	500 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	501 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	502 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	503 void dec_committed_words(size_t v);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	504 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	505 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	506
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	507 // Unlink empty VirtualSpaceNodes and free it.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	508 void purge(ChunkManager* chunk_manager);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 bool contains(const void *ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 void print_on(outputStream* st) const;
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 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 return _virtual_spaces != NULL;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 };
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 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 static int _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 static int _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 static int _allocation_fail_alot_count;
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 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 static int deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 return _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544 static void set_deallocate_block_a_lot_count(int v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 _deallocate_block_a_lot_count = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	546 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 static void inc_deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 _deallocate_block_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 static int deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551 return _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 static void reset_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554 _deallocate_chunk_a_lot_count = 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 static void inc_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 _deallocate_chunk_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	561 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 #endif
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 static void deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567 static void deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 };
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 int Metadebug::_deallocate_block_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 int Metadebug::_deallocate_chunk_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	582
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 // protects allocations and contains.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	586 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	587 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	588
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590 // 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	591 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	592 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 // 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	600 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	601
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	602 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	603 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	604 size_t _allocated_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607 // 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	608 // 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	609 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 BlockFreelist _block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	612 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	617 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 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	620 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	621
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	626 Metaspace::MetadataType mdtype() { return _mdtype; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	627
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	628 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	629 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	630
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 void add_chunk(Metachunk* v, bool make_current);
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	640 void retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	642 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	644 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	645
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	646 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	647 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	648
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	649 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	650 SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	651 Mutex* lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	652 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	653
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	654 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	655 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	656 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	658 bool is_class() { return _mdtype == Metaspace::ClassType; }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	659
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 // Accessors
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	661 size_t specialized_chunk_size() { return SpecializedChunk; }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	662 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	663 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	664 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	665
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	666 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	667 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	668 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	669 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	670
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	671 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	672
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	675 // 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	676 // 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	677 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	678 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	679 // 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	680 // 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	681 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	682 // 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	683 // 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	684 // 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	685 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	686
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	687 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	688 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	689 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	690 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	691
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	696 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	697
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699 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	700
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	701 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	702
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	708 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	711 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 // 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	714 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 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	716
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718 // 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	719 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	720 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	722 // Notify memory usage to MemoryService.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	723 void track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	724
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	728 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	729 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	730
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	731 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	732 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	733 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	734 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	735 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 #endif
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	737
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	738 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	739 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	740
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	741 size_t raw_bytes_size = MAX2(byte_size, sizeof(Metablock));
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	742 raw_bytes_size = align_size_up(raw_bytes_size, Metachunk::object_alignment());
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	743
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	744 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	745 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	746
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	747 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	748 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749 };
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 uint const SpaceManager::_small_chunk_limit = 4;
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 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	761 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	762 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	763 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	764 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	765 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	766 " container_count_slow() " SIZE_FORMAT,
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	767 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	768 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	769
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	770 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	771 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	772 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	773 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	774
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	775 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	776 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	777 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	778 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	779 " container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	780 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	781 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	782
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	791 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	792 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	795
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	796 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	797 Metablock* free_chunk = ::new (p) Metablock(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	799 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	801 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	804 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 return NULL;
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
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	809 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	810 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	811 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	813
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	814 Metablock* free_block =
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	815 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	816 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	817 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	818 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	819
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	820 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	821 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	822 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	823 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	824 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	825
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	826 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	827 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	828 const size_t unused = block_size - word_size;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	829 if (unused >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	830 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	831 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	832
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	833 return new_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	834 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	836 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	838 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	839 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	840 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	841 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	842
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	843 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	844
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	845 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	847 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	848 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	849 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	850 #endif
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	855 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	856
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	857 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	858 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	860 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	861
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	862 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	863 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	864 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	865
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 // 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	868 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869 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	870 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	871 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 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	873
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	874 // 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	875 // commit granularity to enforce the following condition.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	876 // 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	877 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	878 "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	879
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881 if (TraceMetadataChunkAllocation) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	882 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	883 // 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	884 print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	887 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	888
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889 // 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	890 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	892 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	893 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	894 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	898 // 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	899 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	900 size_t min_bytes = min_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	901 size_t preferred_bytes = preferred_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	902
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	903 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	904
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	905 if (uncommitted < min_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	906 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	907 }
12838 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 size_t commit = MIN2(preferred_bytes, uncommitted);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	910 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	911
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	912 assert(result, "Failed to commit memory");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	913
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	914 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	917 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	918 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	919 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	920 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	921 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	922 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	923 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	924 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926 bool VirtualSpaceNode::initialize() {
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 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	929 return false;
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
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	932 // 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	933 // 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	934 // 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	935 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	936 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	937
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	938 // 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	939 // 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	940 // committed_size and actual_committed_size agrees.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	941 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	942
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	943 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	944 Metaspace::commit_alignment());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 if (result) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	946 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	947 "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	948
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	952
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	953 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	954 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	955 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	956 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	957 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	958 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	959 _rs.size() / BytesPerWord));
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	962 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	963 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	965 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	967 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	969 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	970 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	971 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	972 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	973 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	975 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	976 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	977
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	978 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	980 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	981 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	982 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	983 #endif // ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	984
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	985 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	986 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	987
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	988 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	989 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	990 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	991 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	992 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	993 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	994 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	995
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	996 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	997 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	998 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	999 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1000 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	1001 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1002 _reserved_words = _reserved_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1003 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1004
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1005 #define assert_committed_below_limit() \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1006 assert(MetaspaceAux::committed_bytes() <= MaxMetaspaceSize, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1007 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	1008 " limit (MaxMetaspaceSize): " SIZE_FORMAT, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1009 MetaspaceAux::committed_bytes(), MaxMetaspaceSize));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1010
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1011 void VirtualSpaceList::inc_committed_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1012 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	1013 _committed_words = _committed_words + v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1014
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1015 assert_committed_below_limit();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1016 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1017 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	1018 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1019 _committed_words = _committed_words - v;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1020
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1021 assert_committed_below_limit();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1022 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1023
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1024 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1025 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1027 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1028 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1029 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1030 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1031 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1033 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1034 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1035 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1036 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1037 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1038 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1039 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1040 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1041
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1042 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1043 dec_free_chunks_total(chunk->word_size());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1044 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1045
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1046 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1047 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1048 // the node from their respective freelists.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1049 void VirtualSpaceList::purge(ChunkManager* chunk_manager) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1050 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1051 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1052 // 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	1053 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1054 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1055 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1056 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1057 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1058 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1059 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1060 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1061 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1062 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1063 if (prev_vsl == vsl) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1064 // 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	1065 assert(vsl == virtual_space_list(), "Expected to be the first node");
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1066 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1067 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1068 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1069 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1070
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1071 vsl->purge(chunk_manager);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1072 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1073 dec_committed_words(vsl->committed_words());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1074 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1075 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1076 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1077 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1078 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1079 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1080 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1081 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1082 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1083 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1084 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1085 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1086 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1087 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1088 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1089 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1090 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1091 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1092
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1093 VirtualSpaceList::VirtualSpaceList(size_t word_size) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1094 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1095 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1096 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1097 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1098 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1099 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1100 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1101 Mutex::_no_safepoint_check_flag);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1102 create_new_virtual_space(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1103 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1104
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1105 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1106 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1107 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1108 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1109 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1110 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1111 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1112 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1113 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1114 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1115 bool succeeded = class_entry->initialize();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1116 if (succeeded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1117 link_vs(class_entry);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1118 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1119 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1120
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1121 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1122 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	1123 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1124
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1125 // 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	1126 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	1127 assert_lock_strong(SpaceManager::expand_lock());
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1128
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1129 if (is_class()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1130 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	1131 " 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	1132 " 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	1133 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1134 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1135
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1136 if (vs_word_size == 0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1137 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	1138 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1139 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1140
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1141 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1142 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	1143 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	1144
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1145 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1146 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1147 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1148 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1149 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1150 } else {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1151 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	1152 "Reserved memory size differs from requested memory size");
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1153 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1154 OrderAccess::storestore();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1155 link_vs(new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1156 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1157 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1158 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1159
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1160 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1161 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1162 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1163 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1164 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1165 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1166 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	1167 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	1168 inc_committed_words(new_entry->committed_words());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1169 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1170 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1171 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1172 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1173 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1174 VirtualSpaceNode* vsl = current_virtual_space();
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1175 vsl->print_on(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1176 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1177 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1178
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1179 bool VirtualSpaceList::expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1180 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1181 size_t preferred_words) {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1182 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1183
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1184 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	1185
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1186 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1187
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1188 // 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	1189 assert(after >= before, "Inconsistency");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1190 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1191
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1192 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1193 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1194
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1195 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	1196 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	1197 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	1198 assert(min_words <= preferred_words, "Invalid arguments");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1199
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1200 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	1201 return false;
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
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1204 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	1205 if (allowed_expansion_words < min_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1206 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1207 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1208
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1209 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	1210
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1211 // 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	1212 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	1213 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1214 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1215 if (vs_expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1216 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1217 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1218
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1219 // Get another virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1220 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	1221 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	1222
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1223 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	1224 if (current_virtual_space()->is_pre_committed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1225 // 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	1226 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	1227 "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	1228 "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	1229 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1230 }
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 return expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1233 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1234 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1235 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1236
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1237 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1238 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1239
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1240 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	1241 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1242 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1243
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1244 // Allocate a chunk out of the current virtual space.
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1245 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	1246
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1247 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1248 return next;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1249 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1250
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1251 // 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	1252 // 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	1253
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1254 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	1255 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	1256 if (min_word_size >= preferred_word_size) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1257 // Can happen when humongous chunks are allocated.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1258 preferred_word_size = min_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1259 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1260
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1261 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	1262 if (expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1263 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	1264 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	1265 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1266
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1267 return next;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1268 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1269
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1270 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1271 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1272 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1273 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1274 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1275 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1276 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1277 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1280 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1281 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1282 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1283 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1284 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1285 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1286 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1287 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1288 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1289 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1290 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1291
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1292
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1293 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1294
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1295 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1296 // 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	1297 // 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	1298 // 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	1299 // 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	1300 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1301 // 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	1302 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1303 // 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	1304 // 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	1305 // 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	1306 // 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	1307 // 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	1308 // 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	1309 // 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	1310 // 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	1311 // the HWM.
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 // 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	1314 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1315 // 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	1316 // 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	1317 // 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	1318 // plus some.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1319 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	1320 size_t min_delta = MinMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1321 size_t max_delta = MaxMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1322 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	1323
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1324 if (delta <= min_delta) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1325 delta = min_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1326 } else if (delta <= max_delta) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1327 // 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	1328 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1329 // for this allocation.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1330 delta = max_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1331 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1332 // 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	1333 // so increase by the minimum.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1334 delta = delta + min_delta;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1335 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1336
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1337 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	1338
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1339 return delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1340 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1341
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1342 size_t MetaspaceGC::capacity_until_GC() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1343 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	1344 assert(value >= MetaspaceSize, "Not initialied properly?");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1345 return value;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1346 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1347
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1348 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	1349 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	1350
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1351 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	1352 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1353
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1354 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	1355 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	1356
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1357 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	1358 }
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 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	1361 // 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	1362 if (is_class && Metaspace::using_class_space()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1363 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	1364 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	1365 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	1366 }
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1367 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1368
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1369 // 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	1370 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1371 if (committed_bytes + word_size * BytesPerWord > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1372 return false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1373 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1374
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1375 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1376 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1377
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1378 size_t MetaspaceGC::allowed_expansion() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1379 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1380
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1381 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	1382
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1383 // 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	1384 // 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	1385 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	1386 return left_until_max / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1387 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1388
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1389 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	1390
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1391 if (capacity_until_gc <= committed_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1392 return 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1393 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1394
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1395 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	1396 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	1397
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1398 return left_to_commit / BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1400
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1401 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1402 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1403 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1404 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1405
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1406 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	1407 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	1408
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1409 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1410 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	1411
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1412 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	1413 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1414 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1415 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1416 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1417 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1418
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1419 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1420 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1421 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1422 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1423 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1424 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1425 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1426 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1427 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1428 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1429 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1430
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1431
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1432 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1433 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1434 // 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	1435 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1436 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	1437 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	1438 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1439 if (expand_bytes >= MinMetaspaceExpansion) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1440 MetaspaceGC::inc_capacity_until_GC(expand_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1441 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1442 if (PrintGCDetails && Verbose) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1443 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	1444 gclog_or_tty->print_cr(" expanding:"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1445 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1446 " expand_bytes: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1447 " MinMetaspaceExpansion: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1448 " new metaspace HWM: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1449 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1450 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1451 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1452 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1453 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1454 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1455 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1456
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1457 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1458 // 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	1459 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	1460 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	1461 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1462
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1463 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1464 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1465 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1466 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	1467 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	1468 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	1469 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1470 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1471 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1472 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1473 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1474 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1475 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1478 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1479 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1481 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1482 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1483
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1486
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1489 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1490 // 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	1491 // 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	1492 // 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	1493 // 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	1494 // 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	1495 // 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	1496 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	1497
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1498 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	1499
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1500 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1501 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	1502 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1503 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1504 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1505 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1506 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
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 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1509 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1510 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1511 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1512 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1513 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1514 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1515 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1516 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1517 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1518 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1519 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1520 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1521 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 MinMetaspaceExpansion / (double) K);
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 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1528 // 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	1529 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1530 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1531 MetaspaceGC::dec_capacity_until_GC(shrink_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1535 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1536
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1537 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1538 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1544 for (uint i = 0; i < metadata_deallocate_a_lock_chunk; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1545 Metachunk* dummy_chunk = vsl->current_virtual_space()->take_from_committed(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1546 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1548 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1549 sm->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
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 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1552 gclog_or_tty->print("Metadebug::deallocate_chunk_a_lot: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1555 gclog_or_tty->print_cr(" Free chunks total %d count %d",
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1556 sm->chunk_manager()->free_chunks_total_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1557 sm->chunk_manager()->free_chunks_count());
6725 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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1562 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1563 #endif
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 Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1567 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1568 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1569 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1570 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1572 for (uint i = 0; i < metadata_deallocate_a_lot_block; i++) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1573 MetaWord* dummy_block = sm->allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1576 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1577 sm->deallocate(dummy_block, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1579 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 Metadebug::inc_deallocate_block_a_lot_count();
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 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1583 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1584
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1585 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1586 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1587 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588 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	1589 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1590 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1591
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1592 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1593 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1595 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1596 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1597 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1598 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1599 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1600 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1601 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1602 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1603 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1605 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1606 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1607 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1608 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1609 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1610
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1611 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1612
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1613 size_t ChunkManager::free_chunks_total_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1614 return _free_chunks_total;
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
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1617 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1618 return free_chunks_total_words() * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1619 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1621 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1622 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1624 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1625 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1626 // 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	1627 // 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	1628 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1630 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1631 return _free_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1632 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1634 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1636 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1637 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	1638 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1639 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1640 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1641
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1642 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1643 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1644 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1645 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1649 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1650 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1651 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	1652 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1653 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1654 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1655
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1656 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1657 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1658 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1659 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1660 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1661 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1663
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1664 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1665 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1666 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1667 locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1668 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1670 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1671 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1672 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1673 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1674
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1675 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1676 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1677 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	1678 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1679 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1680
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1681 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1682 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1683 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	1684 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1685 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1686 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1687 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1688 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1689
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1690 // 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	1691 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1692 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1693 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1694 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1695 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	1696 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1697
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1698 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1699 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1700 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1701
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1702 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1703 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1704 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1705 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1706 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1707
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1708 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1709 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1710 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1711 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	1712 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1713 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1714 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1715 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1716 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1717 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1718 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1719 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1720 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1721
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1722 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	1723 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1724 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1725 return free_chunks(index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1726 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1727
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1728 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1729 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1730 ChunkList* free_list = find_free_chunks_list(chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1731 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1732 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1733 // chunk is being returned to the chunk free list
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1734 inc_free_chunks_total(chunk->word_size());
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1735 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1736 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1737
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1738 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1739 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1740 // manangement code for a Metaspace and does not hold the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1741 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1742 assert(chunk != NULL, "Deallocating NULL");
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1743 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1744 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1745 if (TraceMetadataChunkAllocation) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1746 gclog_or_tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1747 PTR_FORMAT " size " SIZE_FORMAT,
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1748 chunk, chunk->word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1749 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1750 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1751 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1752
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1753 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1754 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1755
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1756 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1757
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1758 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1759 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1760 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1761 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1762
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1763 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1764
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1765 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1766 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1767 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1768
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1769 // 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	1770 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1771
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1772 if (TraceMetadataChunkAllocation && Verbose) {
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1773 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	1774 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	1775 free_list, chunk, chunk->word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1776 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1777 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1778 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1779 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1780 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1781
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1782 if (chunk == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1783 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1784 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1785
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1786 if (TraceMetadataHumongousAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1787 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	1788 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	1789 SIZE_FORMAT " for requested size " SIZE_FORMAT
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1790 " waste " SIZE_FORMAT,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1791 chunk->word_size(), word_size, waste);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1792 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1793 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1794
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	1795 // Chunk is being removed from the chunks free list.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1796 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	1797
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1798 // 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	1799 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1800 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1801 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1802 // 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	1803 // work.
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1804 chunk->set_is_tagged_free(false);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1805 #endif
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1806 chunk->container()->inc_container_count();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1807
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1808 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1809 return chunk;
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 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1813 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	1814 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1815
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1816 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1817 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1818 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1819 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1820 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1821
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1822 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1823 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1824 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1825 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1826 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1827 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1828 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	1829 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1830 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1831 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1832 }
12240 8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1833 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	1834 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	1835 this, chunk, chunk->word_size(), list_count);
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty stefank parents: 12239 diff changeset	1836 locked_print_free_chunks(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1837 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1838
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1839 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1840 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1841
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1842 void ChunkManager::print_on(outputStream* out) const {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1843 if (PrintFLSStatistics != 0) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1844 const_cast<ChunkManager *>(this)->humongous_dictionary()->report_statistics();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1845 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1846 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1847
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1848 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1849
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1850 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	1851 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1852 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1853 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1854 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1855 *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	1856 *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	1857 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1858 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1859 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1860 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1861 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1862 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1863 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1864 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1865 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1866 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1867 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1868 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1869 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1870 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1871 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1872 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1873 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1874 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1875 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1876 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	1877 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	1878 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1879 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	1880 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1881
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1882 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	1883 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1884 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1885 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	1886 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1887 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1888 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1889 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1890 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1891 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1892 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1893 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1894
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895 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	1896 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1897 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1898 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	1899 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1901
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1902 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1905 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	1906 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1907 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1908 // 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	1909 // 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	1910 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	1911 if (chunk != current_chunk()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1912 result += chunk->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1913 }
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	1914 chunk = chunk->next();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1915 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1916 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1917 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1918
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1919 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	1920 // 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	1921 // 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	1922 // 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	1923 // 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	1924 // 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	1925 // 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	1926 // 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	1927 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1928 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1929 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1930 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1931 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	1932 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1933 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	1934 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1935 while (chunk != NULL) {
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	1936 sum += chunk->word_size();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1937 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1938 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1939 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1940 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1941 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1942 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1943
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1944 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1945 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1946 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	1947 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1948 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1949
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1950 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1951 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1952
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1953 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	1954 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1955 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1956 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1957 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1958 chunk = chunk->next();
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 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1961 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1962
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1963
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1964 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	1965 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1966 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1967 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	1968 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1969 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1970 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1971 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1972 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1973 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1974 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1975 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1976
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1977 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	1978
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1979 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	1980 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1981 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1982 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1983 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1984 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1985 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1986 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1987 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1988 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1989 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1990
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1991 chunk_manager()->locked_print_free_chunks(st);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	1992 chunk_manager()->locked_print_sum_free_chunks(st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1993 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1994
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1995 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	1996
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1997 // 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	1998 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1999 // 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	2000 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2001 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2002 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	2003 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	2004 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	2005 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	2006 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2007 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2008 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2009 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2010 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2011
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2012 // 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	2013 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2014 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2015 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2016 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2017 HumongousChunkGranularity);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2018 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2019 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	2020
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2021 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2022 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2023 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	2024 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2025 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2026 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2027 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2028 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2029 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	2030 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	2031 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2032 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	2033 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2034 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2035 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2036 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2037
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2038 void SpaceManager::track_metaspace_memory_usage() {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2039 if (is_init_completed()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2040 if (is_class()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2041 MemoryService::track_compressed_class_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2042 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2043 MemoryService::track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2044 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2045 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2046
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2047 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	2048 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2049 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2050 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2051 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2052 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2053 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	2054
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2055 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2056 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2057 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2058 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2059 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2060 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2061 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2062 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	2063 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2064 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2065 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2066 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2067
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2068 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2069 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	2070 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	2071
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2072 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2073 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2074 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2075
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2076 MetaWord* mem = NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2077
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2078 // 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	2079 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2080 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2081 // 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	2082 add_chunk(next, false);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2083 mem = next->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2084 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2085
12839 a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2086 // Track metaspace memory usage statistic.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2087 track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded stefank parents: 12838 diff changeset	2088
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2089 return mem;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2090 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2091
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2092 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2093
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2094 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2095 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2096 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2097 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	2098 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2099 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	2100 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2101 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	2102 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2103 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2104 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2105 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2106 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2107 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2108 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2109 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2110 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2111 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2112
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2113 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2114 Mutex* lock) :
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2115 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2116 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2117 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2118 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2119 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2120 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2121 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2122 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2123
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2124 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	2125 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2126 // 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	2127 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2128 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2129 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2130 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2131 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2132 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2133 // 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	2134 // 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	2135 // 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	2136 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2137 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2138 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2139
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2140 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	2141 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2142 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2143 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2144 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2145 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2146
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2147 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2148 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2149 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	2150 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2151 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	2152 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2153
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2154 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2155 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2156 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	2157 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2158 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2159 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2160 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2161 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2162 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2163 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2164
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2165 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2166 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2167 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2168 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2169 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2170 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	2171 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2172 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2173
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2174 // 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	2175 // 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	2176 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2177 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2178 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2179 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2180 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2181 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2182 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2183 Metachunk* next = cur->next();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2184 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	2185 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2186 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2187 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2188 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2189
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2190 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2191 // 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	2192 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	2193 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	2194 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2195 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	2196
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2197 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2198 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2199
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2200 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2201
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2202 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2203
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2204 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2205 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2206 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2207 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2208
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2209 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2210 // 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	2211
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2212 // 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	2213 // below.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2214 chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2215 sum_count_in_chunks_in_use());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2216
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2217 // 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	2218 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2219
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2220 // 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	2221 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2222
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2223 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	2224 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 gclog_or_tty->print_cr("returned %d %s chunks to freelist",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2226 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2228 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2229 Metachunk* chunks = chunks_in_use(i);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2230 chunk_manager()->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2231 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2232 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2233 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	2234 chunk_manager()->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2235 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2236 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2237 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	2238 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2239
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2240 // 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	2241 // 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	2242 // 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	2243
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2244 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2245 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2246 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	2247 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2248 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2249 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2250 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2251 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2252 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2253
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2254 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2255 #ifdef ASSERT
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2256 humongous_chunks->set_is_tagged_free(true);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2257 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2258 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2259 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	2260 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2261 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2262 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2263 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2264 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2265 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2266 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	2267 " granularity %d",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2268 humongous_chunks->word_size(), HumongousChunkGranularity));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2269 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2270 humongous_chunks->container()->dec_container_count();
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2271 chunk_manager()->humongous_dictionary()->return_chunk(humongous_chunks);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2272 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2273 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2274 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2275 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2276 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	2277 chunk_manager()->humongous_dictionary()->total_count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2278 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2279 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2280 chunk_manager()->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2281 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2282
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2283 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	2284 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2285 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2286 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2287 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2288 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2289 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2290 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2291 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2292 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2293 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2294 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2295 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2296 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2297
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2298 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2299 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2300 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2301 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2302 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2303 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2304 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2305 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2306 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2307 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2308 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2309 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2310 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2311 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2312 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2313 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2314 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2315 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2316
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2317 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	2318 assert_lock_strong(_lock);
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2319 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	2320 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2321 assert(raw_word_size >= min_size,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2322 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	2323 block_freelists()->return_block(p, raw_word_size);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2326 // 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	2327 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	2328
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2329 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2330 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	2331
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2332 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2333
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2334 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2335 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2336 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	2337
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2338 if (index != HumongousIndex) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2339 retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2340 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2341 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	2342 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2343 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2344 // 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	2345 // 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	2346 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2347 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2348 // 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	2349 set_current_chunk(new_chunk);
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 // 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	2352 // 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	2353 // 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	2354 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2355 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2356 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2357
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2358 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	2359 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2360
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2361 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2362 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2363
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2364 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2365 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2366 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2367 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2368 new_chunk->print_on(gclog_or_tty);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2369 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	2370 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2371 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2372
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2373 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2374 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2375 size_t remaining_words = current_chunk()->free_word_size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2376 if (remaining_words >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2377 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	2378 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2379 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2380 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2381 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2382
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2383 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	2384 size_t grow_chunks_by_words) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2385 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2386 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	2387
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2388 if (next == NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2389 next = vs_list()->get_new_chunk(word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2390 grow_chunks_by_words,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2391 medium_chunk_bunch());
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2392 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2393
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2394 if (TraceMetadataHumongousAllocation && next != NULL &&
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2395 SpaceManager::is_humongous(next->word_size())) {
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2396 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2397 PTR_FORMAT, next->word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2398 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2399
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2400 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2401 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2402
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2403 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2404 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2405
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	2406 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	2407 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2408 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2409 // 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	2410 // 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	2411 // 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	2412 // 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	2413 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2414 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2415 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2416 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2417 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2418 p = allocate_work(raw_word_size);
6725 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 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2421
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2422 return p;
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2425 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2426 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2427 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2428 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2429 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2430 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2431 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2433 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2435 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2436
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2437 // 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	2438 // 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	2439 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2440 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2441 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	2442 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2443 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	2444 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2445
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2446 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2447 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2449
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2450 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2451 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2452 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2453
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2454 if (result != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2455 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2456 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2457 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2458 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2459
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2460 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2461 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2462
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2463 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2464 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2465 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2466 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2467 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2468 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	2469 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2470 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2471 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2472 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2473 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2474 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2475 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2476 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2477 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2478
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2479 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2480 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2481 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2482 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2483 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2484 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2485 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2486 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2487
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2488 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2489 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2490 // 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	2491 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	2492 "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	2493 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	2494 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	2495 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2496 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	2497 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2499 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2500
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2501 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2502 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2503 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2504 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2505 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2506 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2507
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2508 // 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	2509 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2510 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2511 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2512 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2513 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2514 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2515 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2516 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2517 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2518 used += curr->used_word_size();
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	2519 capacity += curr->word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2520 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2521 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2522 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2523
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2524 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2525 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2526 }
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2527
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2528 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	2529 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2530 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2531
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2532 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	2533 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2534 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2535 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2536
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2537 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2538 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2539 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2540 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2541 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2542 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2543 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2544 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2545 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2546 }
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 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2549 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2550
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2551 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2552
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2553
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2554 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2555 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	2556
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2557 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2558 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2559 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2560 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2561
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2562 size_t MetaspaceAux::free_bytes() {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2563 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	2564 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2565
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2566 void MetaspaceAux::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	2567 assert_lock_strong(SpaceManager::expand_lock());
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2568 assert(words <= allocated_capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2569 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	2570 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2571 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2572 _allocated_capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2573 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2574
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2575 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	2576 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2577 // Needs to be atomic
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2578 _allocated_capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2579 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2580
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2581 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	2582 assert(words <= allocated_used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2583 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	2584 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2585 words, mdtype, allocated_used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2586 // 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	2587 // 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	2588 // 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	2589 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2590 jlong minus_words = (jlong) - (jlong) words;
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2591 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	2592 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2593
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2594 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	2595 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2596 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2597 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2598 // threads so must be done atomically.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2599 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	2600 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2601
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2602 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	2603 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2604 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2605 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2606 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2607 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2608 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2609 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2610 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2611 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2612 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2613 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2614
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2615 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	2616 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2617 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2618 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2619 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2620 if (msp != NULL) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2621 free += msp->free_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2622 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2623 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2624 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2625 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2626
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2627 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2628 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2629 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2630 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2631 // 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	2632 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2633 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2634 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2635 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2636 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2637 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2638 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2639 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2640 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2641 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2642 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2643
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2644 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2645 #ifdef PRODUCT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2646 // Use allocated_capacity_bytes() in PRODUCT instead of this function.
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2647 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2648 #endif
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2649 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2650 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2651 assert(allocated_capacity_bytes() == class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2652 err_msg("bad accounting: allocated_capacity_bytes() " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2653 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2654 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2655 allocated_capacity_bytes(), class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2656 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2657
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2658 return class_capacity + non_class_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2659 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2660
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2661 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2662 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	2663 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	2664 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2665
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2666 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	2667 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	2668 return list == NULL ? 0 : list->committed_bytes();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2669 }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2670
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2671 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2672
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2673 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	2674 ChunkManager* chunk_manager = Metaspace::get_chunk_manager(mdtype);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2675 if (chunk_manager == NULL) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2676 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2677 }
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2678 chunk_manager->slow_verify();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2679 return chunk_manager->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2680 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2681
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2682 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2683 return free_chunks_total_words(mdtype) * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2684 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2685
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2686 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2687 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2688 free_chunks_total_words(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2689 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2690
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2691 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2692 return free_chunks_total_words() * BytesPerWord;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2693 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2694
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2695 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	2696 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2697 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2698 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2699 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2700 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2701 prev_metadata_used,
11037 df7e1c0e3dc1 8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity jmasa parents: 10376 diff changeset	2702 allocated_used_bytes(),
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2703 reserved_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2704 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2705 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2706 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2707 "(" SIZE_FORMAT "K)",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2708 prev_metadata_used/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2709 allocated_used_bytes()/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2710 reserved_bytes()/K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2711 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2712
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2713 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2714 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2715
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2716 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2717 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2718 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2719
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2720 out->print_cr(" Metaspace "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2721 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2722 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2723 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2724 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2725 allocated_used_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2726 allocated_capacity_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2727 committed_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2728 reserved_bytes()/K);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2729
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2730 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2731 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2732 out->print_cr(" class space "
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2733 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2734 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2735 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2736 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2737 allocated_used_bytes(ct)/K,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2738 allocated_capacity_bytes(ct)/K,
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2739 committed_bytes(ct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2740 reserved_bytes(ct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2741 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2742 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2743
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2744 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2745 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2746 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2747 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	2748 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	2749 size_t used_bytes = used_bytes_slow(mdtype);
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2750 size_t free_bytes = free_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2751 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2752 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2753 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	2754 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2755 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2756 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2757 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2758 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2759 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2760 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2761 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	2762 // 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	2763 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	2764 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2765
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2766 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2767 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2768 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2769 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	2770 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	2771 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2772 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2773 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2774 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2775 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	2776 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	2777 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	2778 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	2779 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	2780 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	2781 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	2782 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2783 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2784 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2785 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2786 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2787 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2788 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2789 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2790 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2791 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2792
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2793 // 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	2794 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	2795 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	2796 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	2797
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2798 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2799 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2800 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2801 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2802 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	2803 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	2804 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	2805 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	2806 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	2807 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	2808 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	2809 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2810 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2811 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	2812 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	2813 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	2814 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	2815 "large count " SIZE_FORMAT,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2816 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	2817 small_waste, medium_count, medium_waste, humongous_count);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2818 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2819 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2820 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2821 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2822
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2823 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2824 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2825 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2826 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2827 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2828 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2829 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2830
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2831 void MetaspaceAux::verify_free_chunks() {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2832 Metaspace::chunk_manager_metadata()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2833 if (Metaspace::using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2834 Metaspace::chunk_manager_class()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2835 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2836 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2837
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2838 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2839 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2840 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	2841 // 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	2842 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	2843 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	2844 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	2845 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2846 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2847 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2848 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2849 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2850 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	2851 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2852 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2853 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2854 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	2855 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2856 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2857 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2858
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2859 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2860 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2861 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	2862 // 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	2863 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	2864 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	2865 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2866 " used_bytes_slow()" SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2867 allocated_used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2868 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2869 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2870 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2871 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	2872 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2873 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2874 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2875 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	2876 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2877 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2878 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2879
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2880 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2881 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2882 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2883 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2884
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2885
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2886 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2887
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2888 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	2889 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	2890
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2891 size_t Metaspace::_commit_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2892 size_t Metaspace::_reserve_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2893
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2894 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2895 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2896 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2897
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2898 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2899 delete _vsm;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2900 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2901 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2902 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2903 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2904
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2905 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2906 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2907
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2908 ChunkManager* Metaspace::_chunk_manager_metadata = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2909 ChunkManager* Metaspace::_chunk_manager_class = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	2910
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2911 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2912
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2913 #ifdef _LP64
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2914 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	2915 // 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	2916 // 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	2917 // (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	2918 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2919 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2920 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2921 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2922 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2923 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2924 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2925 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2926 higher_address = metaspace_base + class_metaspace_size();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2927 lower_base = metaspace_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2928 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2929 Universe::set_narrow_klass_base(lower_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2930 if ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2931 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2932 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2933 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2934 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2935 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2936 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2937
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2938 // 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	2939 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2940 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	2941 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2942 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2943 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2944 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2945 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2946 return ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2947 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2948
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2949 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2950 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	2951 assert(using_class_space(), "called improperly");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2952 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2953 assert(class_metaspace_size() < KlassEncodingMetaspaceMax,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2954 "Metaspace size is too big");
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2955 assert_is_ptr_aligned(requested_addr, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2956 assert_is_ptr_aligned(cds_base, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2957 assert_is_size_aligned(class_metaspace_size(), _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2958
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2959 // 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	2960 bool large_pages = false;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2961
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2962 ReservedSpace metaspace_rs = ReservedSpace(class_metaspace_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2963 _reserve_alignment,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2964 large_pages,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2965 requested_addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2966 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2967 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2968 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	2969
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2970 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2971 // 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	2972 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2973 char *addr = requested_addr;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2974 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	2975 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	2976 addr = addr + increment;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2977 metaspace_rs = ReservedSpace(class_metaspace_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2978 _reserve_alignment, large_pages, addr, 0);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2979 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2980 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2981
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2982 // 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	2983 // 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	2984 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2985 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2986 // So, UseCompressedClassPointers cannot be turned off at this point.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2987 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2988 metaspace_rs = ReservedSpace(class_metaspace_size(),
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	2989 _reserve_alignment, large_pages);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2990 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2991 vm_exit_during_initialization(err_msg("Could not allocate metaspace: %d bytes",
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2992 class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2993 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2994 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2995 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2996
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2997 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2998 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2999
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3000 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3001 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	3002 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3003 "Could not allocate metaspace at a compatible address");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3004 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3005
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3006 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3007 UseSharedSpaces ? (address)cds_base : 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3008
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3009 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3010
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3011 if (PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3012 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	3013 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3014 gclog_or_tty->print_cr("Metaspace Size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3015 class_metaspace_size(), metaspace_rs.base(), requested_addr);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3016 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3017 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3018
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3019 // 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	3020 // 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	3021 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3022 // 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	3023 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3024 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3025 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3026 _class_space_list = new VirtualSpaceList(rs);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3027 _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	3028
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3029 if (!_class_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3030 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	3031 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3032 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3033
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3034 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3035
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3036 // 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	3037 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	3038 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	3039 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3040
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3041 void Metaspace::ergo_initialize() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3042 if (DumpSharedSpaces) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3043 // 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	3044 FLAG_SET_ERGO(bool, UseLargePagesInMetaspace, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3045 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3046
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3047 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	3048 if (UseLargePages && UseLargePagesInMetaspace) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3049 page_size = os::large_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3050 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3051
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3052 _commit_alignment = page_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3053 _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	3054
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3055 // 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	3056 // 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	3057 // 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	3058 // java.lang.management.MemoryUsage API.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3059 //
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3060 // 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	3061 // 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	3062 // alignment depends on other flags being parsed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3063 MaxMetaspaceSize = restricted_align_down(MaxMetaspaceSize, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3064
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3065 if (MetaspaceSize > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3066 MetaspaceSize = MaxMetaspaceSize;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3067 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3068
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3069 MetaspaceSize = restricted_align_down(MetaspaceSize, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3070
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3071 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	3072
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3073 if (MetaspaceSize < 256*K) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3074 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	3075 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3076
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3077 MinMetaspaceExpansion = restricted_align_down(MinMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3078 MaxMetaspaceExpansion = restricted_align_down(MaxMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3079
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3080 CompressedClassSpaceSize = restricted_align_down(CompressedClassSpaceSize, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3081 set_class_metaspace_size(CompressedClassSpaceSize);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3082 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3083
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3084 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3085 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3086 int max_alignment = os::vm_page_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3087 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3088
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3089 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3090
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3091 if (DumpSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3092 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3093 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	3094 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3095 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3096
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3097 // 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	3098 // 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	3099 // remainder is the misc code and data chunks.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3100 cds_total = FileMapInfo::shared_spaces_size();
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3101 cds_total = align_size_up(cds_total, _reserve_alignment);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3102 _space_list = new VirtualSpaceList(cds_total/wordSize);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3103 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3104
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3105 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3106 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	3107 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3108
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3109 #ifdef _LP64
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3110 if (cds_total + class_metaspace_size() > (uint64_t)max_juint) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3111 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	3112 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	3113 SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3114 "klass limit: " SIZE_FORMAT, cds_total, class_metaspace_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3115 cds_total + class_metaspace_size(), (size_t)max_juint));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3116 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3117
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3118 // 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	3119 // properly when creating the shared archive.
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3120 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3121 "UseCompressedOops and UseCompressedClassPointers must be set");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3122 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	3123 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3124 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	3125 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3126 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3127
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3128 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3129 #endif
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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3132 // 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	3133 // 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	3134 // the addresses don't conflict)
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3135 address cds_address = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3136 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3137 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3138 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3139
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3140 // 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	3141 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3142 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3143 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3144 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3145 FileMapInfo::set_current_info(mapinfo);
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3146 cds_total = FileMapInfo::shared_spaces_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3147 cds_address = (address)mapinfo->region_base(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3148 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3149 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3150 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3151 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3152 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3153
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3154 #ifdef _LP64
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3155 // If UseCompressedClassPointers is set then allocate the metaspace area
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3156 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3157 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3158 if (UseSharedSpaces) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3159 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	3160 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	3161 allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3162 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3163 allocate_metaspace_compressed_klass_ptrs((char *)CompressedKlassPointersBase, 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3164 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3165 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3166 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3167
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3168 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3169 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3170 _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	3171 // 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	3172 // 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	3173 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3174 _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	3175 (CompressedClassSpaceSize/BytesPerWord)*2);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3176 _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	3177 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3178 // of the boot class loader size.
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3179 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	3180 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	3181
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3182 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3183 _space_list = new VirtualSpaceList(word_size);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3184 _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	3185
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3186 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3187 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	3188 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3189 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3190
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3191 MetaspaceGC::initialize();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3192 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3193
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3194 Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3195 size_t chunk_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3196 size_t chunk_bunch) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3197 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3198 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	3199 if (chunk != NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3200 return chunk;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3201 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3202
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3203 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	3204 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3205
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3206 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3207
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3208 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3209 "Metadata VirtualSpaceList has not been initialized");
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3210 assert(chunk_manager_metadata() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3211 "Metadata ChunkManager has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3212
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3213 _vsm = new SpaceManager(NonClassType, lock);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3214 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3215 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3216 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3217 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3218 size_t class_word_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3219 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3220
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3221 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3222 assert(class_space_list() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3223 "Class VirtualSpaceList has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3224 assert(chunk_manager_class() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3225 "Class ChunkManager has not been initialized");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3226
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3227 // Allocate SpaceManager for classes.
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3228 _class_vsm = new SpaceManager(ClassType, lock);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3229 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3230 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3231 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3232 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3233
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3234 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	3235
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3236 // Allocate chunk for metadata objects
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3237 Metachunk* new_chunk = get_initialization_chunk(NonClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3238 word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3239 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3240 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	3241 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3242 // 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	3243 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3244 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3245
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3246 // Allocate chunk for class metadata objects
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3247 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3248 Metachunk* class_chunk = get_initialization_chunk(ClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3249 class_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3250 class_vsm()->medium_chunk_bunch());
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3251 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3252 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3253 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3254 }
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3255
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3256 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3257 _alloc_record_tail = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3258 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3259
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3260 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	3261 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3262 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	3263 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3264
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3265 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3266 // DumpSharedSpaces doesn't use class metadata area (yet)
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3267 // 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	3268 if (is_class_space_allocation(mdtype)) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3269 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3270 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3271 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3272 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3273 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3274
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3275 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	3276 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	3277 assert(delta_bytes > 0, "Must be");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3278
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3279 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	3280 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	3281
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3282 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3283 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	3284 " to " SIZE_FORMAT, before_inc, after_inc);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3285 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3286
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3287 return allocate(word_size, mdtype);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3288 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3289
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3290 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3291 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3292 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3293 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	3294 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3295 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3296
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3297 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3298 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3299 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	3300 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3301 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3302 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3303 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3304
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	3305 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3306 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3307 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	3308 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3309 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3310 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3311 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3312
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3313 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3314 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3315 // 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	3316 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3317 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3318 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3319 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3320 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	3321 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3322 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3323 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3324 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3325
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3326 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	3327 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3328 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3329
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3330 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	3331 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3332 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3333
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3334 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	3335 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3336 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	3337 // 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	3338 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3339 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3340 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3341 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3342 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3343 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3344 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3345 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3346 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3347 class_vsm()->deallocate(ptr, word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3348 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3349 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3350 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3351 } 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	3352 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	3353
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3354 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3355 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3356 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3357 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3358 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3359 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3360 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3361 if (is_class && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3362 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3363 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3364 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3365 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3366 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3367 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3368
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3369
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3370 MetaWord* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3371 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3372 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3373 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3374 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3375 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3376
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3377 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	3378 "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	3379
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3380 // 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	3381 // 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	3382 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3383 if (DumpSharedSpaces) {
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3384 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3385 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	3386 MetaWord* result = space->allocate(word_size, NonClassType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3387 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3388 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3389 }
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3390
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3391 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	3392
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3393 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3394 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3395
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3396 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3397 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3398
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3399 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3400
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3401 // Try to allocate metadata.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3402 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	3403
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3404 if (result == NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3405 // Allocation failed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3406 if (is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3407 // 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	3408
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3409 // 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	3410 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	3411 loader_data, word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3412 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3413 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3414
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3415 if (result == NULL) {
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3416 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	3417 // Will not reach here.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3418 return NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3419 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3420
12902 bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3421 // Zero initialize.
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3422 Copy::fill_to_aligned_words((HeapWord*)result, word_size, 0);
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3423
bdfbb1fb19ca 8026391: The Metachunk header wastes memory stefank parents: 12839 diff changeset	3424 return result;
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3425 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3426
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3427 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	3428 // 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	3429 if (Verbose && TraceMetadataChunkAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3430 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	3431 SIZE_FORMAT, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3432 if (loader_data->metaspace_or_null() != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3433 loader_data->dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3434 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3435 MetaspaceAux::dump(gclog_or_tty);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3436 }
12838 85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3437
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3438 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3439 const char* space_string = is_class_space_allocation(mdtype) ? "Compressed class space" :
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3440 "Metadata space";
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3441 report_java_out_of_memory(space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3442
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3443 if (JvmtiExport::should_post_resource_exhausted()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3444 JvmtiExport::post_resource_exhausted(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3445 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3446 space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3447 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3448
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3449 if (!is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3450 vm_exit_during_initialization("OutOfMemoryError", space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3451 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3452
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3453 if (is_class_space_allocation(mdtype)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3454 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	3455 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces stefank parents: 12340 diff changeset	3456 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	3457 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3458 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3459
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3460 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	3461 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3462
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3463 AllocRecord rec = new AllocRecord((address)ptr, type, (int)word_size HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3464 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3465 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3466 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3467 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3468 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3469 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3470 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3471
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3472 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3473 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3474
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3475 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3476
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3477 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3478 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3479 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3480 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3481 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3482 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3483 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3484 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3485
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3486 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3487 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3488 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3489 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3490 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3491
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3492 void Metaspace::purge(MetadataType mdtype) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3493 get_space_list(mdtype)->purge(get_chunk_manager(mdtype));
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3494 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3495
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3496 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3497 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3498 Mutex::_no_safepoint_check_flag);
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3499 purge(NonClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3500 if (using_class_space()) {
12303 b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists stefank parents: 12302 diff changeset	3501 purge(ClassType);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3502 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3503 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3504
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3505 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3506 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3507 if (Verbose) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3508 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3509 if (using_class_space()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3510 class_vsm()->print_on(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3511 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3512 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3513 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3514
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3515 bool Metaspace::contains(const void * ptr) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3516 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3517 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3518 }
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3519 // 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	3520 // 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	3521 // 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	3522 // 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	3523 // caller in MetaspaceObj::is_metadata() function.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3524 return space_list()->contains(ptr) \|\|
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3525 (using_class_space() && class_space_list()->contains(ptr));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3527
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3528 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3529 vsm()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3530 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3531 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3532 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3533 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3534
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3535 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3536 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3537 vsm()->dump(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3538 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3539 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3540 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3541 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3542 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3543
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3544 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3545
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3546 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3547
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3548 class TestMetaspaceAuxTest : AllStatic {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3549 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3550 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3551 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3552
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3553 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3554
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3555 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3556 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3557
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3558 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	3559 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3560 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3561
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3562 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3563 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	3564 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3565 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3566 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3567 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3568
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3569 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3570 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3571
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3572 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3573
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3574 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3575 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3576
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3577 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	3578 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3579 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3580
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3581 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3582 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	3583 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3584 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3585 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3586 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3587
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3588 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	3589 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	3590 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	3591 // 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	3592 // vm_allocation_granularity aligned on Windows.
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3593 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	3594 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	3595 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	3596 }
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3597
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3598 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3599 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3600 test_committed();
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3601 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	3602 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3603 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3604
12306 03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3605 void TestMetaspaceAux_test() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly brutisso parents: 12303 diff changeset	3606 TestMetaspaceAuxTest::test();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3607 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3608
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3609 #endif

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/memory/metaspace.cpp @ 12902:bdfbb1fb19ca