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

annotate src/share/vm/memory/metaspace.cpp @ 10330:2b1a9d972fc2

8014862: Add fast Metasapce capacity and used per MetadataType Reviewed-by: ehelin, stefank

author	jmasa
date	Mon, 20 May 2013 22:34:24 -0700
parents	601183f604b2
children	a1ebd310d5c1

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"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	26 #include "memory/binaryTreeDictionary.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	27 #include "memory/freeList.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	28 #include "memory/collectorPolicy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 #include "memory/freeList.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	31 #include "memory/metablock.hpp"
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	32 #include "memory/metachunk.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 #include "memory/metaspace.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 #include "memory/resourceArea.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "memory/universe.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 #include "runtime/globals.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 #include "runtime/mutex.hpp"
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	39 #include "runtime/orderAccess.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	40 #include "services/memTracker.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 #include "utilities/copy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 #include "utilities/debug.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	43
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	44 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	45 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	46 // Define this macro to enable slow integrity checking of
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	47 // the free chunk lists
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	48 const bool metaspace_slow_verify = false;
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	49
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	50 // Parameters for stress mode testing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	51 const uint metadata_deallocate_a_lot_block = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	52 const uint metadata_deallocate_a_lock_chunk = 3;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	53 size_t const allocation_from_dictionary_limit = 64 * K;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	54
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	56
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58 enum ChunkIndex {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	59 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	60 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	61 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	62 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	63 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	64 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	65 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	66 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	67
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	68 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	69 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	70 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	71 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	72 SmallChunk = 512,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	73 ClassMediumChunk = 1 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	74 MediumChunk = 8 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	75 HumongousChunkGranularity = 8
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	76 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	77
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	78 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	79 assert(i < NumberOfInUseLists, "Out of bound");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	81 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 // Originally _capacity_until_GC was set to MetaspaceSize here but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 // the default MetaspaceSize before argument processing was being
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 // used which was not the desired value. See the code
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86 // in should_expand() to see how the initialization is handled
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87 // now.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 size_t MetaspaceGC::_capacity_until_GC = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 bool MetaspaceGC::_expand_after_GC = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93 // Blocks of space for metadata are allocated out of Metachunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95 // Metachunk are allocated out of MetadataVirtualspaces and once
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	96 // allocated there is no explicit link between a Metachunk and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	97 // the MetadataVirtualspaces from which it was allocated.
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 // Each SpaceManager maintains a
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 // list of the chunks it is using and the current chunk. The current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 // chunk is the chunk from which allocations are done. Space freed in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 // a chunk is placed on the free list of blocks (BlockFreelist) and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 // reused from there.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	105 typedef class FreeList<Metachunk> ChunkList;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 // Manages the global free lists of chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108 // Has three lists of free chunks, and a total size and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 // count that includes all three
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 class ChunkManager VALUE_OBJ_CLASS_SPEC {
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 // Free list of chunks of different sizes.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	114 // SpecializedChunk
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 // HumongousChunk
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	118 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	119
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	120
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	121 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	122 ChunkTreeDictionary _humongous_dictionary;
6725 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 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	128 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	129 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	132 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	134 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	135 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	136
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140 size_t sum_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142 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	143 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	144 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	145 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	146 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	147 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	148 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	149 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	150 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	151 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	152 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	153 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	154 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	155
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	156 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	157
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	158 ChunkManager() : _free_chunks_total(0), _free_chunks_count(0) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160 // 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	161 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	162 void chunk_freelist_deallocate(Metachunk* chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	163
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	164 // 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	165 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	166 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	167
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	168 // Remove the chunk from its freelist. It is
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	169 // expected to be on one of the _free_chunks[] lists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	170 void remove_chunk(Metachunk* chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	171
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	172 // 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	173 // of type index.
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	174 void return_chunks(ChunkIndex index, Metachunk* chunks);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	175
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176 // Total of the space in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	177 size_t free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	178 size_t free_chunks_total_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181 size_t free_chunks_count();
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 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	184 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	187 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	188 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	189 }
6725 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 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	192
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	193 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	196 // Add and remove from a list by size. Selects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	197 // list based on size of chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	198 void free_chunks_put(Metachunk* chuck);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	199 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	200
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	201 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	203 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	204 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	205 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	206 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	207 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208 void locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	209 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	210 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	211 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	212 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	213 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	214 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	215
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	216 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	217 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	218
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	219 void print_on(outputStream* st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	221
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	222 // 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	223 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	225 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	226 static Metablock* initialize_free_chunk(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	227
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	228 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	229 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	232 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	233 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	236 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	237 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	238
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	239 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	240 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	242 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	243 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	245 }
6725 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 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 };
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 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	252
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	261 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	262 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	264 // Convenience functions for logical bottom and end
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
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 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	269 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	271
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	272 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	273 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	274 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	275
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	276 void inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	277 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	278 uint container_count_slow();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	279 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	280
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	282
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	284 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	285 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	292 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	293 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	294
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	295 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	297 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	298
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	299 // 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	300 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	301
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	302 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 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	304
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	305 uintx container_count() { return _container_count; }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	306 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	307 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	308 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	309 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	310
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311 // 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	312 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	313 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	314 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	315
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	316 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	317
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	318 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	319 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	320
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	321 // 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	322 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	323 Metachunk* get_chunk_vs_with_expand(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	325 // 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	326 // to Virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327 bool expand_by(size_t words, bool pre_touch = false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328 bool shrink_by(size_t words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	330 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	331 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	332 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	333
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	334 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	336 static void verify_virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	337 static void verify_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	338 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	339 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	340
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	341 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	342 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	343
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	344 // byte_size is the size of the associated virtualspace.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	345 VirtualSpaceNode::VirtualSpaceNode(size_t byte_size) : _top(NULL), _next(NULL), _rs(0), _container_count(0) {
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	346 // align up to vm allocation granularity
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	347 byte_size = align_size_up(byte_size, os::vm_allocation_granularity());
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	348
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	349 // 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	350 // 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	351 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	352 if (DumpSharedSpaces) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	353 char* shared_base = (char*)SharedBaseAddress;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	354 _rs = ReservedSpace(byte_size, 0, false, shared_base, 0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	355 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	356 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	357 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	358 // Get a mmap region anywhere if the SharedBaseAddress fails.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	359 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	360 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	361 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	362 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	363 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	364 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	365
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	367 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	368
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	369 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	370 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	371 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	372 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	373 assert(chunk->is_free(), "Should be marked free");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	374 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	375 chunk_manager->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	376 assert(chunk->next() == NULL &&
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	377 chunk->prev() == NULL,
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	378 "Was not removed from its list");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	379 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	380 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	381 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	382
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	383 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	384 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	385 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	386 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	387 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	388 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	389 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	390 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	391 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	392 // counted.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	393 if (!chunk->is_free()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	394 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	395 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	396 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	397 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	398 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	399 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	400 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	401
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	402 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	403 // It has a _next link for singly linked list and a MemRegion
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	404 // for total space in the VirtualSpace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	405 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	406 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	411
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 // Global list of virtual spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 // Free chunk list for all other metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 ChunkManager _chunk_manager;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 // Can this virtual list allocate >1 spaces? Also, used to determine
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 // whether to allocate unlimited small chunks in this virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	422 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	423 bool can_grow() const { return !is_class() \|\| !UseCompressedKlassPointers; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	425 // Sum of space in all virtual spaces and number of virtual spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426 size_t _virtual_space_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	430
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
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 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 _virtual_space_list = v;
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 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 void link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 // 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	443 // 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	444 // and is typically followed by the allocation of a chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 bool grow_vs(size_t vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	451 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	452
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	453 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	454 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	455 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	456
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	457 // Get the first chunk for a Metaspace. Used for
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	458 // special cases such as the boot class loader, reflection
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	459 // class loader and anonymous class loader.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	460 Metachunk* get_initialization_chunk(size_t word_size, size_t chunk_bunch);
6725 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 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	463 return _current_virtual_space;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 ChunkManager* chunk_manager() { return &_chunk_manager; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469 // Allocate the first virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 void initialize(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 size_t virtual_space_total() { return _virtual_space_total; }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	473
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	474 void inc_virtual_space_total(size_t v);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	475 void dec_virtual_space_total(size_t v);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	476 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	477 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	478
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	479 // Unlink empty VirtualSpaceNodes and free it.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	480 void purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 // Used and capacity in the entire list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 // These are global values shared by all Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 size_t capacity_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 size_t capacity_bytes_sum() { return capacity_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 size_t used_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 size_t used_bytes_sum() { return used_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 bool contains(const void *ptr);
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 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	492
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	493 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	497 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 return result;
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 };
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 static int _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 static int _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 static int deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 return _deallocate_block_a_lot_count;
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 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	524 _deallocate_block_a_lot_count = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 static void inc_deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 _deallocate_block_a_lot_count++;
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 static int deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 return _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 static void reset_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 _deallocate_chunk_a_lot_count = 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 static void inc_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 _deallocate_chunk_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 #endif
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 deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	546 static void deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551 int Metadebug::_deallocate_block_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 int Metadebug::_deallocate_chunk_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	561
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562 // protects allocations and contains.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	565 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	566 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	567
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	568 // Chunk related size
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	569 size_t _medium_chunk_bunch;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	570
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 // 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	573 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	574 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 // Virtual space where allocation comes from.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 VirtualSpaceList* _vs_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	582 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 bool has_small_chunk_limit() { return !vs_list()->is_class(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585 // 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	586 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	587
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	588 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	589 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	590 size_t _allocated_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	591
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 // 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	594 // 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	595 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 BlockFreelist _block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	603 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605 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	606 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	607
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	612 Metaspace::MetadataType mdtype() { return _mdtype; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613 VirtualSpaceList* vs_list() const { return _vs_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 Metachunk* find_current_chunk(size_t word_size);
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 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 void add_chunk(Metachunk* v, bool make_current);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	627 const char* chunk_size_name(ChunkIndex index) const;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	628
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	629 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	630 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	631
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	633 SpaceManager(Metaspace::MetadataType mdtype,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	634 Mutex* lock,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	635 VirtualSpaceList* vs_list);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	638 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	639 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 };
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 // Accessors
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	643 size_t specialized_chunk_size() { return SpecializedChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	644 size_t small_chunk_size() { return (size_t) vs_list()->is_class() ? ClassSmallChunk : SmallChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	645 size_t medium_chunk_size() { return (size_t) vs_list()->is_class() ? ClassMediumChunk : MediumChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	646 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	647
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	648 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	649 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	650 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	651 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	652
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	653 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	654
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	655 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	656
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	657 // 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	658 // 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	659 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	660 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	661 // 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	662 // 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	663 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	664 // 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	665 // 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	666 // 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	667 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	668
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	669 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	670 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	671 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	672 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	673
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	677 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 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	679
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	680 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 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	682
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	683 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	684
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	685 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	686 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	688
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	689 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	690 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	693 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 // 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	696 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 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	698
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 // 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	701 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	702 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 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	709
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	711 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	712 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	714 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 #endif
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	728 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	729 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	730 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	731 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	732 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	733 "container_count_slow() " SIZE_FORMAT,
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	734 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	735 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	736
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	737 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	738 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	739 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	740 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	741
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	742 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	743 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	744 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	745 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	746 "container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	747 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	748 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	749
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	762
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	763 Metablock* BlockFreelist::initialize_free_chunk(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	764 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	765 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	766 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	767 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	768
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	769 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	770 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	772 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	773 Metablock* free_chunk = initialize_free_chunk(p, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	775 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	777 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	780 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	781 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	785 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	786 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	789
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	790 Metablock* free_block =
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	791 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::exactly);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	792 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	793 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	794 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	795
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	796 return (MetaWord*) free_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	797 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801 return;
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 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 // VirtualSpaceNode methods
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 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	809 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	810 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	811 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	812 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	813 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	815
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	816 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	817 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	818 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	822 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	823 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	825 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	826 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	827 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	828
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	829 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	830 // 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	831 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	832 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	833 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	834 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835 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	836
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	838 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	839 tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	840 // Dump some information about the virtual space that is nearly full
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	841 print_on(tty);
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 return NULL;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 // 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	847 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	849 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	850 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	851 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	855 // Expand the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	856 bool VirtualSpaceNode::expand_by(size_t words, bool pre_touch) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	857 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	858 bool result = virtual_space()->expand_by(bytes, pre_touch);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859 if (TraceMetavirtualspaceAllocation && !result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	860 gclog_or_tty->print_cr("VirtualSpaceNode::expand_by() failed "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	861 "for byte size " SIZE_FORMAT, bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	862 virtual_space()->print();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	864 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 // Shrink the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 bool VirtualSpaceNode::shrink_by(size_t words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	870 virtual_space()->shrink_by(bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	871 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 // Add another chunk to the chunk list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 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	877 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	878 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	879 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	880 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	881 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	882 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	884
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885 Metachunk* VirtualSpaceNode::get_chunk_vs_with_expand(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 assert_lock_strong(SpaceManager::expand_lock());
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 Metachunk* new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890 if (new_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891 // Only a small part of the virtualspace is committed when first
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	892 // allocated so committing more here can be expected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	893 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894 size_t aligned_expand_vs_by_words = align_size_up(chunk_word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897 new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	898 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	899 return new_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	900 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	903
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	904 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	905 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	906 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	907
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	908 // An allocation out of this Virtualspace that is larger
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	909 // than an initial commit size can waste that initial committed
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	910 // space.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	911 size_t committed_byte_size = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912 bool result = virtual_space()->initialize(_rs, committed_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	913 if (result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	914 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	917
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	918 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	919 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	920 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	921 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	922 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	923 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	924 _rs.size() / BytesPerWord));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	928 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	929
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	930 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 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	935 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	936 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	937 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	938 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	939 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	941 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	942
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	943 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	948 #endif // ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	961 void VirtualSpaceList::inc_virtual_space_total(size_t v) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	962 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	963 _virtual_space_total = _virtual_space_total + v;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	964 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	965 void VirtualSpaceList::dec_virtual_space_total(size_t v) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	966 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	967 _virtual_space_total = _virtual_space_total - v;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	968 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	969
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	970 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	971 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	972 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	973 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	974 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	975 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	976 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	977 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	978
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	979 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	980 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	981 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	982 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	983 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	984 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	985 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	986 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	987
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	988 // Chunk is being removed from the chunks free list.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	989 dec_free_chunks_total(chunk->capacity_word_size());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	990 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	991
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	992 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	993 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	994 // the node from their respective freelists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	995 void VirtualSpaceList::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	996 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	997 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	998 // 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	999 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1000 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1001 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1002 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1003 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1004 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1005 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1006 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1007 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1008 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1009 if (prev_vsl == vsl) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1010 // This is the case of the current note being the first note.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1011 assert(vsl == virtual_space_list(), "Expected to be the first note");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1012 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1013 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1014 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1015 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1016
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1017 vsl->purge(chunk_manager());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1018 dec_virtual_space_total(vsl->reserved()->word_size());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1019 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1020 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1021 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1022 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1023 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1024 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1025 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1027 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1028 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1029 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1030 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1031 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1033 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1034 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1035 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1036 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1037
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1038 size_t VirtualSpaceList::used_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1039 size_t allocated_by_vs = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1040 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1041 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1042 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1043 // Sum used region [bottom, top) in each virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1044 allocated_by_vs += vsl->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1045 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1046 assert(allocated_by_vs >= chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1047 err_msg("Total in free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1048 " greater than total from virtual_spaces " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1049 allocated_by_vs, chunk_manager()->free_chunks_total()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1050 size_t used =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1051 allocated_by_vs - chunk_manager()->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1052 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1053 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1054
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1055 // Space available in all MetadataVirtualspaces allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1056 // for metadata. This is the upper limit on the capacity
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1057 // of chunks allocated out of all the MetadataVirtualspaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1058 size_t VirtualSpaceList::capacity_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1059 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1060 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1061 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1062 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1063 capacity += vsl->capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1064 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1065 return capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1066 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1067
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1068 VirtualSpaceList::VirtualSpaceList(size_t word_size ) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1069 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1070 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1071 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1072 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1073 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1074 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1075 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1076 bool initialization_succeeded = grow_vs(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1077
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1078 _chunk_manager.free_chunks(SpecializedIndex)->set_size(SpecializedChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1079 _chunk_manager.free_chunks(SmallIndex)->set_size(SmallChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1080 _chunk_manager.free_chunks(MediumIndex)->set_size(MediumChunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1081 assert(initialization_succeeded,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1082 " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1083 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1084
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1085 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1086 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1087 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1088 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1089 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1090 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1091 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1092 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1093 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1094 bool succeeded = class_entry->initialize();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1095 _chunk_manager.free_chunks(SpecializedIndex)->set_size(SpecializedChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1096 _chunk_manager.free_chunks(SmallIndex)->set_size(ClassSmallChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1097 _chunk_manager.free_chunks(MediumIndex)->set_size(ClassMediumChunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1098 assert(succeeded, " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1099 link_vs(class_entry, rs.size()/BytesPerWord);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1100 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1101
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1102 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1103 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	1104 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1105
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1106 // Allocate another meta virtual space and add it to the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1107 bool VirtualSpaceList::grow_vs(size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1108 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1109 if (vs_word_size == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1110 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1111 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1112 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1113 size_t vs_byte_size = vs_word_size * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1114 assert(vs_byte_size % os::vm_page_size() == 0, "Not aligned");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1116 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1117 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1118 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1119 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1120 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1121 } else {
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1122 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1123 OrderAccess::storestore();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1124 link_vs(new_entry, vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1125 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1126 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1127 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1128
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1129 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1130 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1131 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1132 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1133 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1134 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1135 set_current_virtual_space(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1136 inc_virtual_space_total(vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1137 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1138 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1139 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1140 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1141 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1142 VirtualSpaceNode* vsl = current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1143 vsl->print_on(tty);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1146
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1147 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	1148 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1149 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1150
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1151 // Get a chunk from the chunk freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1152 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1153
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1154 if (next != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1155 next->container()->inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1156 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1157 // Allocate a chunk out of the current virtual space.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1158 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1159 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1160
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1161 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1162 // Not enough room in current virtual space. Try to commit
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1163 // more space.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1164 size_t expand_vs_by_words = MAX2(medium_chunk_bunch,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1165 grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1166 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1167 size_t aligned_expand_vs_by_words = align_size_up(expand_vs_by_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1168 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1169 bool vs_expanded =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1170 current_virtual_space()->expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1171 if (!vs_expanded) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1172 // Should the capacity of the metaspaces be expanded for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1173 // this allocation? If it's the virtual space for classes and is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1174 // being used for CompressedHeaders, don't allocate a new virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1175 if (can_grow() && MetaspaceGC::should_expand(this, word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1176 // Get another virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1177 size_t grow_vs_words =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1178 MAX2((size_t)VirtualSpaceSize, aligned_expand_vs_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1179 if (grow_vs(grow_vs_words)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1180 // Got it. It's on the list now. Get a chunk from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1181 next = current_virtual_space()->get_chunk_vs_with_expand(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1182 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1183 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1184 // Allocation will fail and induce a GC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1185 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1186 gclog_or_tty->print_cr("VirtualSpaceList::get_new_chunk():"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1187 " Fail instead of expand the metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1188 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1189 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1190 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1191 // The virtual space expanded, get a new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1192 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1193 assert(next != NULL, "Just expanded, should succeed");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1194 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1195 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1196
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1197 assert(next == NULL \|\| (next->next() == NULL && next->prev() == NULL),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1198 "New chunk is still on some list");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1199 return next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1200 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1201
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1202 Metachunk* VirtualSpaceList::get_initialization_chunk(size_t chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1203 size_t chunk_bunch) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1204 // Get a chunk from the chunk freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1205 Metachunk* new_chunk = get_new_chunk(chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1206 chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1207 chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1208 return new_chunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1209 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1210
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1211 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1212 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1213 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1214 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1215 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1216 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1217 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1218 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1219 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1220
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1221 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1222 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1223 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1224 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1225 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1226 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1227 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1228 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1229 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1230 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1231 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1232
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1233
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1234 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1235
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1236 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1237 // 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	1238 // 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	1239 // 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	1240 // 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	1241 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1242 // 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	1243 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1244 // 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	1245 // 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	1246 // 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	1247 // 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	1248 // 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	1249 // 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	1250 // 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	1251 // 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	1252 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1253
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1254 // 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	1255 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1256 // another expansion is not requested too soon. If that is not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1257 // enough to satisfy the allocation (i.e. big enough for a word_size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1258 // allocation), increase by MaxMetaspaceExpansion. If that is still
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1259 // not enough, expand by the size of the allocation (word_size) plus
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1260 // some.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1261 size_t MetaspaceGC::delta_capacity_until_GC(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1262 size_t before_inc = MetaspaceGC::capacity_until_GC();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1263 size_t min_delta_words = MinMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1264 size_t max_delta_words = MaxMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1265 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1266 size_t size_delta_words = align_size_up(word_size, page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1267 size_t delta_words = MAX2(size_delta_words, min_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1268 if (delta_words > min_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1269 // 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	1270 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1271 // for this allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1272 delta_words = MAX2(delta_words, max_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1273 if (delta_words > max_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1274 // This allocation is large but the next ones are probably not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1275 // so increase by the minimum.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1276 delta_words = delta_words + min_delta_words;
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 return delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1280 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1281
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1282 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1283
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1284 size_t committed_capacity_bytes = MetaspaceAux::allocated_capacity_bytes();
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1285 // If the user wants a limit, impose one.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1286 size_t max_metaspace_size_bytes = MaxMetaspaceSize;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1287 size_t metaspace_size_bytes = MetaspaceSize;
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1288 if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1289 MetaspaceAux::reserved_in_bytes() >= MaxMetaspaceSize) {
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1290 return false;
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1291 }
6725 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 // Class virtual space should always be expanded. Call GC for the other
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1294 // metadata virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1295 if (vsl == Metaspace::class_space_list()) return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1296
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1297 // If this is part of an allocation after a GC, expand
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1298 // unconditionally.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1299 if (MetaspaceGC::expand_after_GC()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1300 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1302
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1303
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1304
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1305 // If the capacity is below the minimum capacity, allow the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1306 // expansion. Also set the high-water-mark (capacity_until_GC)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1307 // to that minimum capacity so that a GC will not be induced
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1308 // until that minimum capacity is exceeded.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1309 if (committed_capacity_bytes < metaspace_size_bytes \|\|
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1310 capacity_until_GC() == 0) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1311 set_capacity_until_GC(metaspace_size_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1312 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1313 } else {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1314 if (committed_capacity_bytes < capacity_until_GC()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1315 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1316 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1317 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1318 gclog_or_tty->print_cr(" allocation request size " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1319 " capacity_until_GC " SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1320 " allocated_capacity_bytes " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1321 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1322 capacity_until_GC(),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1323 MetaspaceAux::allocated_capacity_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1324 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1325 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1326 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1327 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1328 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1329
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1330
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1331
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1332 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1333 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1334 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1335 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1336
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1337 // Until a faster way of calculating the "used" quantity is implemented,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1338 // use "capacity".
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1339 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	1340 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	1341
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1342 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1343 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	1344
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1345 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	1346 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1347 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1348 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1349 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1350 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1351
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1352 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1353 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1354 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1355 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1356 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1357 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1358 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1359 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1360 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1361 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1362 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1363
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1364
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1365 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1366 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1367 // 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	1368 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1369 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1370 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1371 if (expand_bytes >= MinMetaspaceExpansion) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1372 MetaspaceGC::set_capacity_until_GC(capacity_until_GC + expand_bytes);
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 if (PrintGCDetails && Verbose) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1375 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	1376 gclog_or_tty->print_cr(" expanding:"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1377 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1378 " expand_bytes: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1379 " MinMetaspaceExpansion: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1380 " new metaspace HWM: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1381 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1382 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1383 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1384 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1385 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1386 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1388
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1389 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1390 // 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	1391 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	1392 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	1393 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1394
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1395 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1396 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1397 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1398 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	1399 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	1400 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	1401 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1402 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1403 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1404 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1405 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1406 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1407 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1408 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1409 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1410 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1411 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1412 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1413 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1414 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1415
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1416 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1417 "sanity check");
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 (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1420 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1421 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1422 // 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	1423 // 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	1424 // 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	1425 // 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	1426 // 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	1427 // 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	1428 shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1429 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1430 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	1431 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1432 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1433 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1434 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1435 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1436 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1437 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1438 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1439 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1440 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1441 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1442 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1443 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1444 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1445 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1446 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1447 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1448 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1449 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1450 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1451 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1452 MinMetaspaceExpansion / (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 }
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 // 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	1458 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1459 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1460 MetaspaceGC::set_capacity_until_GC(capacity_until_GC - shrink_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1461 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1464 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1465
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1466 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1467 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1468 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1469 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1470 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1471 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1472 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1473 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	1474 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	1475 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1478 vsl->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1479
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1481 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	1482 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1483 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 gclog_or_tty->print_cr(" Free chunks total %d count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1486 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1489 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1490 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1491 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1492 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1493 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1494
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1495 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1496 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1497 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1498 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1499 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1500 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1501 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	1502 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	1503 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1504 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1505 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1506 sm->deallocate(dummy_block, raw_word_size);
6725 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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1509 Metadebug::inc_deallocate_block_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1510 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1511 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1512 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1514 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1515 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1516 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1517 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	1518 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1519 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1520
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1521 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1524 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1525 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1526 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1527 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1528 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1529 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1530 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1531 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1533 return true;
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1536 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1538 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 // Verification of _free_chunks_total and _free_chunks_count does not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543 // work with the CMS collector because its use of additional locks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1544 // complicate the mutex deadlock detection but it can still be useful
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1545 // for detecting errors in the chunk accounting with other collectors.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 size_t ChunkManager::free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1548 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1549 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1550 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1551 Mutex::_no_safepoint_check_flag);
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1552 slow_locked_verify_free_chunks_total();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1555 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1556 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1557
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1558 size_t ChunkManager::free_chunks_total_in_bytes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1559 return free_chunks_total() * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1560 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1562 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1563 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1564 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1565 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1566 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1567 // 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	1568 // 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	1569 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1570 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1572 return _free_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1576 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1577 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 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	1579 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 sum_free_chunks()));
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1583 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1584 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1585 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1586 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1587 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1589 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1590 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1591 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1592 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	1593 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1595 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1596
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1597 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1598 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1599 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1600 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1601 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1602 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1603 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1605 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1606 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1607 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1608 locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1609 }
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 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1612 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1613 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1614 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1615
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1616 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1617 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1618 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	1619 _free_chunks_total, _free_chunks_count);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1622 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1624 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	1625 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1626 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1627 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1628 return &_free_chunks[index];
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1631 // 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	1632 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1634 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1636 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	1637 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1638
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1639 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1640 continue;
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
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1643 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1644 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1645 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1649 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1650 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1651 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1652 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	1653 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1654 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1655 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1656 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1657 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1658 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1659 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1660 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1663 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	1664 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1665 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1666 return free_chunks(index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1667 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1668
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1670 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1671 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	1672 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1673 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1674 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1675 inc_free_chunks_total(chunk->capacity_word_size());
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1676 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1677 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1678
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1679 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1680 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1681 // 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	1682 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1683 assert(chunk != NULL, "Deallocating NULL");
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1684 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1685 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1686 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1687 tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1688 PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1689 chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1690 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1691 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1692 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1693
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1694 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1695 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1696
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1697 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1698
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1699 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1700 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1701 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1702 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1703
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1704 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1705 debug_only(Metachunk* debug_head = chunk;)
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1706
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1707 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1708 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1709 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1710
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1711 // 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	1712 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1713
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1714 // Chunk is being removed from the chunks free list.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1715 dec_free_chunks_total(chunk->capacity_word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1716
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1717 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1718 tty->print_cr("ChunkManager::free_chunks_get: free_list "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1719 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1720 free_list, chunk, chunk->word_size());
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 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1723 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1724 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1725 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1726
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1727 if (chunk != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1728 if (TraceMetadataHumongousAllocation) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1729 size_t waste = chunk->word_size() - word_size;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1730 tty->print_cr("Free list allocate humongous chunk size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1731 " for requested size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1732 " waste " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1733 chunk->word_size(), word_size, waste);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1734 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1735 // Chunk is being removed from the chunks free list.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1736 dec_free_chunks_total(chunk->capacity_word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1737 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1738 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1739 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1740 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1741
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1742 // 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	1743 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1744 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1745 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1746 // 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	1747 // work.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1748 chunk->set_is_free(false);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1749 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1750 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1751 return chunk;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1754 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1755 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	1756 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1757
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1758 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1759 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1760 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1761 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1762 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1763
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1764 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1765 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1766 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1767 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1768 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1769 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1770 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	1771 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1772 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1773 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1774 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1775 tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1776 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1777 this, chunk, chunk->word_size(), list_count);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1778 locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1779 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1780
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1781 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1782 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1783
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1784 void ChunkManager::print_on(outputStream* out) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1785 if (PrintFLSStatistics != 0) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1786 humongous_dictionary()->report_statistics();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1787 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1788 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1789
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1790 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1791
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1792 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	1793 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1794 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1795 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1796 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1797 *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	1798 *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	1799 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1800 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1801 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1802 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1803 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1804 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1805 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1806 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1807 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1808 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1809 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1810 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1811 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1812 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1813 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1814 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1815 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1816 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1817 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1818 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	1819 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	1820 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1821 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	1822 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1823
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1824 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	1825 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1826 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1827 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	1828 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1829 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1830 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1831 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1832 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1833 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1834 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1835 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1836
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1837 size_t SpaceManager::sum_waste_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1838 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1839 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1840 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	1841 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1842 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1843
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1844 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1845 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1846
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1847 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	1848 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1849 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1850 // 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	1851 // current chunk from which allocations are still being done.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1852 if (chunk != NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1853 Metachunk* prev = chunk;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1854 while (chunk != NULL && chunk != current_chunk()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1855 result += chunk->free_word_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1856 prev = chunk;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1857 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1858 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1859 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1860 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1861 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1862
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1863 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	1864 // 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	1865 // 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	1866 // 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	1867 // 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	1868 // 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	1869 // 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	1870 // 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	1871 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1872 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1873 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1874 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1875 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	1876 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1877 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	1878 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1879 while (chunk != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1880 sum += chunk->capacity_word_size();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1881 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1882 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1883 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1884 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1885 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1886 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1887
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1888 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1889 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1890 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	1891 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1892 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1893
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1894 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1896
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1897 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	1898 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1899 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1901 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1902 chunk = chunk->next();
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 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1905 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1906
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1907
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1908 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	1909 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1910 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1911 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	1912 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1913 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1914 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1915 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1916 }
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 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1919 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1920
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1921 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	1922
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1923 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	1924 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1925 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1926 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1927 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1928 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1929 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1930 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1931 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1932 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1933 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1934
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1935 vs_list()->chunk_manager()->locked_print_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1936 vs_list()->chunk_manager()->locked_print_sum_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1937 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1938
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1939 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	1940
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1941 // 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	1942 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1943 // 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	1944 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1945 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1946 if (chunks_in_use(MediumIndex) == NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1947 (!has_small_chunk_limit() \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1948 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	1949 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	1950 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	1951 chunk_word_size = medium_chunk_size();
6725 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 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1954 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1955 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1956
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1957 // 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	1958 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1959 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1960 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1961 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1962 HumongousChunkGranularity);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1963 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1964 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	1965
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1966 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1967 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1968 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	1969 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1970 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1971 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1972 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1973 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1974 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	1975 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	1976 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1977 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	1978 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1979 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1980 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1981 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1982
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1983 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	1984 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1985 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1986 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1987 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1988 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1989 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	1990
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1991 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1992 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1993 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1994 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1995 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1996 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1997 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1998 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	1999 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2000 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2001 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2002 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2003
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2004 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2005 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	2006 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	2007
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2008 // If a chunk was available, add it to the in-use chunk list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2009 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2010 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2011 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2012 // 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	2013 add_chunk(next, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2014 return next->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2015 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2016 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2017 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2018
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2019 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2020
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2021 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2022 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2023 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2024 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	2025 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2026 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	2027 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2028 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	2029 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2030 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2031 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2032 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2033 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2034 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2035 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2036 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2037 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2038 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2039
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2040 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2041 Mutex* lock,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2042 VirtualSpaceList* vs_list) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2043 _vs_list(vs_list),
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2044 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2045 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2046 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2047 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2048 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2049 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2050 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2051 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2052
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2053 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	2054 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2055 // 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	2056 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2057 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2058 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2059 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2060 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2061 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2062 // 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	2063 // 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	2064 // 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	2065 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2066 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2067 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2068
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2069 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	2070 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2071 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2072 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2073 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2074 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2075
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2076 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2077 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2078 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	2079 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2080 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	2081 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2082
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2083 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2084 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2085 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	2086 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2087 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2088 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2089 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2090 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2093
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2094 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2095 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2096 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2097 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2098 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2099 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	2100 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2101 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2102
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2103 // 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	2104 // 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	2105 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2106 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2107 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2108 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2109 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2110 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2111 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2112 Metachunk* next = cur->next();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2113 cur->set_is_free(true);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2114 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2115 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2116 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2117 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2118
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2119 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2120 // 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	2121 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	2122 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	2123 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2124 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	2125
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2126 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2127 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2128
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2129 ChunkManager* chunk_manager = vs_list()->chunk_manager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2130
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2131 chunk_manager->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2132
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2133 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2134
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2135 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2136 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2137 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2138 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2139
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2140 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2141 // 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	2142
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2143 // 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	2144 // below.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2145 chunk_manager->inc_free_chunks_total(allocated_chunks_words(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2146 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2147
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2148 // 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	2149 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2150
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2151 // 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	2152 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2153
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2154 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	2155 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2156 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	2157 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2158 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2159 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2160 Metachunk* chunks = chunks_in_use(i);
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2161 chunk_manager->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2162 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2163 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2164 gclog_or_tty->print_cr("updated freelist count %d %s",
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2165 chunk_manager->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2166 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2167 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2168 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	2169 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2170
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2171 // 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	2172 // 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	2173 // 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	2174
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2175 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2176 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2177 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	2178 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2179 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2180 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2181 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2182 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2183 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2184
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2185 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2186 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2187 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2188 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2189 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2190 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	2191 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2192 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2193 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2194 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2195 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2196 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2197 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	2198 " granularity %d",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2199 humongous_chunks->word_size(), HumongousChunkGranularity));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2200 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2201 humongous_chunks->container()->dec_container_count();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2202 chunk_manager->humongous_dictionary()->return_chunk(humongous_chunks);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2203 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2204 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2205 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2206 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2207 gclog_or_tty->print_cr("updated dictionary count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2208 chunk_manager->humongous_dictionary()->total_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2209 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2210 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2211 chunk_manager->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2212 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2213
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2214 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	2215 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2216 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2217 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2218 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2219 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2220 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2221 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2222 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2223 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2224 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2226 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2228
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2229 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2230 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2231 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2232 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2233 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2234 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2235 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2236 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2237 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2238 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2239 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2240 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2241 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2242 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2243 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2244 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2245 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2246 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2247
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2248 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	2249 assert_lock_strong(_lock);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2250 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2251 assert(word_size >= min_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2252 err_msg("Should not deallocate dark matter " SIZE_FORMAT, word_size));
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2253 block_freelists()->return_block(p, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2256 // Adds a chunk to the list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2257 void SpaceManager::add_chunk(Metachunk* new_chunk, bool make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2258
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2259 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2260 assert(new_chunk->next() == NULL, "Should not be on a list");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2261
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2262 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2263
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2264 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2265 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2266 ChunkIndex index = ChunkManager::list_index(new_chunk->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2267
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2268 if (index != HumongousIndex) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2269 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2270 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	2271 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2272 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2273 // 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	2274 // 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	2275 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2276 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2277 // 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	2278 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2279 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2280 // 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	2281 // 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	2282 // 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	2283 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2284 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2285 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2286
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2287 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	2288 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2289
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2290 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2291 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2292
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2293 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2294 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2295 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2296 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2297 new_chunk->print_on(gclog_or_tty);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2298 if (vs_list() != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2299 vs_list()->chunk_manager()->locked_print_free_chunks(tty);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2300 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2302 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2303
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2304 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	2305 size_t grow_chunks_by_words) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2306
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2307 Metachunk* next = vs_list()->get_new_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2308 grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2309 medium_chunk_bunch());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2310
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2311 if (TraceMetadataHumongousAllocation &&
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2312 SpaceManager::is_humongous(next->word_size())) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2313 gclog_or_tty->print_cr(" new humongous chunk word size " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2314 next->word_size());
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
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2317 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2318 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2319
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2320 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2321 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2322
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2323 // If only the dictionary is going to be used (i.e., no
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2324 // indexed free list), then there is a minimum size requirement.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2325 // MinChunkSize is a placeholder for the real minimum size JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2326 size_t byte_size = word_size * BytesPerWord;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2327
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2328 size_t byte_size_with_overhead = byte_size + Metablock::overhead();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2329
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2330 size_t raw_bytes_size = MAX2(byte_size_with_overhead,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2331 Metablock::min_block_byte_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2332 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2333 size_t raw_word_size = raw_bytes_size / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2334 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2335
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2336 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2337 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2338 // 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	2339 // 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	2340 // 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	2341 // 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	2342 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2343 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2344 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2345 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2346 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2347 p = allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2348 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2349 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2350
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2351 return p;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2352 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2353
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2354 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2355 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2356 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2357 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2358 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2359 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2360 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2361 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2362 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2363 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2364 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2365
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2366 // For DumpSharedSpaces, only allocate out of the current chunk which is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2367 // never null because we gave it the size we wanted. Caller reports out
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2368 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2369 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2370 assert(current_chunk() != NULL, "should never happen");
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2371 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2372 return current_chunk()->allocate(word_size); // caller handles null result
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2373 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2374 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2375 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2376 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2377
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2378 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2379 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2380 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2381 if (result > 0) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2382 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2383 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2384 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2385 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2386
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2387 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2389
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2390 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2391 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2392 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2393 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2394 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2395 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	2396 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2397 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2398 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2399 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2400 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2401 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2402 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2403 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2404 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2405
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2406 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2407 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2408 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2409 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2410 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2411 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2412 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2413 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2414
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2415 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2416 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2417 // 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	2418 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	2419 "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	2420 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	2421 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	2422 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2423 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	2424 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2425
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2426 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2427
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2428 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2429 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2430 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2431 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2433 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2435 // 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	2436 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2437 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2438 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2439 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2440 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2441 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2442 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2443 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2444 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2445 block_freelists()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2446 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2447 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2448 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2449 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2450 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2451 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2452 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2453
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2454 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	2455 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2456 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2457
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2458 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	2459 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2460 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2463 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2464 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2465 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2466 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2467 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2468 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2469 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2470 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2471 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2472 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2473 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2474 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2475 #endif // PRODUCT
6725 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 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2478
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2479
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2480 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2481 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	2482
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2483 size_t MetaspaceAux::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2484 size_t result = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2485 if (Metaspace::class_space_list() != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2486 result = result + Metaspace::class_space_list()->free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2487 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2488 if (Metaspace::space_list() != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2489 result = result + Metaspace::space_list()->free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2490 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2491 return result;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2492 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2493
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2494 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	2495 assert_lock_strong(SpaceManager::expand_lock());
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2496 assert(words <= allocated_capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2497 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	2498 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2499 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2500 _allocated_capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2501 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2502
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2503 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	2504 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2505 // Needs to be atomic
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2506 _allocated_capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2507 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2508
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2509 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	2510 assert(words <= allocated_used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2511 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	2512 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2513 words, mdtype, allocated_used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2514 // 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	2515 // 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	2516 // 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	2517 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2518 jlong minus_words = (jlong) - (jlong) words;
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2519 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	2520 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2521
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2522 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	2523 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2524 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2525 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2526 // threads so must be done atomically.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2527 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	2528 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2529
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2530 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	2531 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2532 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2533 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2534 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2535 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2536 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2537 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2538 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2539 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2540 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2541 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2542
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2543 size_t MetaspaceAux::free_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2544 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2545 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2546 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2547 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2548 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2549 free += msp->free_words(mdtype);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2552 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2553 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2554
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2555 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2556 // 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	2557 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2558 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2559 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2560 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2561 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2562 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2563 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2564 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2565 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2566 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2567 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2568
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2569 size_t MetaspaceAux::reserved_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2570 size_t reserved = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2571 Metaspace::class_space_list()->virtual_space_total() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2572 Metaspace::space_list()->virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2573 return reserved * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2575
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2576 size_t MetaspaceAux::min_chunk_size() { return Metaspace::first_chunk_word_size(); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2577
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2578 size_t MetaspaceAux::free_chunks_total(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2579 ChunkManager* chunk = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2580 Metaspace::class_space_list()->chunk_manager() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2581 Metaspace::space_list()->chunk_manager();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2582 chunk->slow_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2583 return chunk->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2584 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2585
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2586 size_t MetaspaceAux::free_chunks_total_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2587 return free_chunks_total(mdtype) * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2588 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2589
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2590 size_t MetaspaceAux::free_chunks_total() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2591 return free_chunks_total(Metaspace::ClassType) +
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2592 free_chunks_total(Metaspace::NonClassType);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2593 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2594
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2595 size_t MetaspaceAux::free_chunks_total_in_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2596 return free_chunks_total() * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2597 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2598
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2599 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	2600 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2601 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2602 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2603 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2604 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2605 prev_metadata_used,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2606 allocated_capacity_bytes(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2607 reserved_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2608 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2609 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2610 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2611 "(" SIZE_FORMAT "K)",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2612 prev_metadata_used / K,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2613 allocated_capacity_bytes() / K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2614 reserved_in_bytes()/ K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2615 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2616
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2617 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2618 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2619
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2620 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2621 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2622 Metaspace::MetadataType ct = Metaspace::ClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2623 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2624
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2625 out->print_cr(" Metaspace total "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2626 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2627 " reserved " SIZE_FORMAT "K",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2628 allocated_capacity_bytes()/K, allocated_used_bytes()/K, reserved_in_bytes()/K);
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2629
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2630 out->print_cr(" data space "
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2631 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2632 " reserved " SIZE_FORMAT "K",
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2633 allocated_capacity_bytes(nct)/K,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2634 allocated_used_bytes(nct)/K,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2635 reserved_in_bytes(nct)/K);
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2636 out->print_cr(" class space "
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2637 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2638 " reserved " SIZE_FORMAT "K",
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2639 allocated_capacity_bytes(ct)/K,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2640 allocated_used_bytes(ct)/K,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2641 reserved_in_bytes(ct)/K);
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2644 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2645 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2646 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2647 size_t free_chunks_capacity_bytes = free_chunks_total_in_bytes(mdtype);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2648 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	2649 size_t used_bytes = used_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2650 size_t free_bytes = free_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2651 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2652 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2653 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	2654 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2655 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2656 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2657 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2658 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2659 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2660 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2661 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	2662 // 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	2663 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	2664 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2665
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2666 // Print total fragmentation for class and data metaspaces separately
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2667 void MetaspaceAux::print_waste(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2668
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2669 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0, large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2670 size_t specialized_count = 0, small_count = 0, medium_count = 0, large_count = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2671 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0, cls_large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2672 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_large_count = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2673
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2674 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2675 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2676 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2677 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2678 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	2679 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	2680 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	2681 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	2682 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	2683 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2684 large_waste += msp->vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2685 large_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2686
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2687 cls_specialized_waste += msp->class_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	2688 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2689 cls_small_waste += msp->class_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	2690 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2691 cls_medium_waste += msp->class_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	2692 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2693 cls_large_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2694 cls_large_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2695 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2696 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2697 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	2698 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	2699 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2700 SIZE_FORMAT " medium(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2701 specialized_count, specialized_waste, small_count,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2702 small_waste, medium_count, medium_waste);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2703 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2704 SIZE_FORMAT " small(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2705 cls_specialized_count, cls_specialized_waste,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2706 cls_small_count, cls_small_waste);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2707 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2708
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2709 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2710 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2711 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2712 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2713 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2714 print_waste(out);
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
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2717 void MetaspaceAux::verify_free_chunks() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2718 Metaspace::space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2719 Metaspace::class_space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2720 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2721
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2722 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2723 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2724 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	2725 // 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	2726 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	2727 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	2728 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	2729 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2730 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2731 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2732 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2733 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2734 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	2735 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2736 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2737 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2738 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	2739 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2740 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2741 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2742
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2743 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2744 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2745 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	2746 // 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	2747 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	2748 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	2749 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2750 " used_bytes_slow()" SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2751 allocated_used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2752 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2753 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2754 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2755 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	2756 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2757 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2758 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2759 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	2760 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2761 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2762 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2763
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2764 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2765 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2766 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2767 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2768
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2769
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2770 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2771
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2772 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	2773 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	2774
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2775 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2776 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2777 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2778
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2779 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2780 delete _vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2781 delete _class_vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2782 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2783
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2784 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2785 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2786
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2787 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2788
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2789 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2790 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2791 int max_alignment = os::vm_page_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2792 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2793
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2794 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2795 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2796 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2797 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2798 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2799
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2800 // 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	2801 // 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	2802 // remainder is the misc code and data chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2803 size_t total = align_size_up(SharedReadOnlySize + SharedReadWriteSize +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2804 SharedMiscDataSize + SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2805 os::vm_allocation_granularity());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2806 size_t word_size = total/wordSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2807 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2808 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2809 // 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	2810 // 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	2811 // the addresses don't conflict)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2812 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2813 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2814 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2815
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2816 // 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	2817 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2818 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2819 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2820 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2821 FileMapInfo::set_current_info(mapinfo);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2822 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2823 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2824 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2825 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2826 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2827
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2828 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2829 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2830 _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	2831 // 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	2832 // 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	2833 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2834 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2835 (ClassMetaspaceSize/BytesPerWord)*2);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2836 _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	2837 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2838 // of the boot class loader size.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2839 size_t word_size = VIRTUALSPACEMULTIPLIER * first_chunk_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2840 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2841 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2842 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2843 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2844
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2845 // For UseCompressedKlassPointers the class space is reserved as a piece of the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2846 // Java heap because the compression algorithm is the same for each. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2847 // argument passed in is at the top of the compressed space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2848 void Metaspace::initialize_class_space(ReservedSpace rs) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2849 // The reserved space size may be bigger because of alignment, esp with UseLargePages
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2850 assert(rs.size() >= ClassMetaspaceSize,
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2851 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), ClassMetaspaceSize));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2852 _class_space_list = new VirtualSpaceList(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2853 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2854
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2855 void Metaspace::initialize(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2856 MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2857
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2858 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2859 "Metadata VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2860
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2861 _vsm = new SpaceManager(Metaspace::NonClassType, lock, space_list());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2862 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2863 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2864 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2865 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2866 size_t class_word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2867 vsm()->get_initial_chunk_sizes(type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2868 &word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2869 &class_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2870
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2871 assert(class_space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2872 "Class VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2874 // Allocate SpaceManager for classes.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2875 _class_vsm = new SpaceManager(Metaspace::ClassType, lock, class_space_list());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2876 if (_class_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2877 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2878 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2879
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2880 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	2881
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2882 // Allocate chunk for metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2883 Metachunk* new_chunk =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2884 space_list()->get_initialization_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2885 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2886 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	2887 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2888 // 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	2889 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2890 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2891
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2892 // Allocate chunk for class metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2893 Metachunk* class_chunk =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2894 class_space_list()->get_initialization_chunk(class_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2895 class_vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2896 if (class_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2897 class_vsm()->add_chunk(class_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2898 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2899 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2900
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2901 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	2902 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2903 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	2904 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2905
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2906 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2907 // DumpSharedSpaces doesn't use class metadata area (yet)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2908 if (mdtype == ClassType && !DumpSharedSpaces) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2909 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2910 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2911 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2912 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2913 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2914
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2915 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2916 MetaWord* result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2917 MetaspaceGC::set_expand_after_GC(true);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2918 size_t before_inc = MetaspaceGC::capacity_until_GC();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2919 size_t delta_bytes = MetaspaceGC::delta_capacity_until_GC(word_size) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2920 MetaspaceGC::inc_capacity_until_GC(delta_bytes);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2921 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2922 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2923 " to " SIZE_FORMAT, before_inc, MetaspaceGC::capacity_until_GC());
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2924 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2925
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2926 result = allocate(word_size, mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2927
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2928 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2929 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	2930
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2931 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2932 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2933 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2934 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	2935 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2936 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2937
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2938 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2939 // return vsm()->allocated_used_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2940 return mdtype == ClassType ? class_vsm()->sum_used_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2941 vsm()->sum_used_in_chunks_in_use(); // includes overhead!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2942 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2943
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2944 size_t Metaspace::free_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2945 return mdtype == ClassType ? class_vsm()->sum_free_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2946 vsm()->sum_free_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2947 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2948
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2949 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2950 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2951 // 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	2952 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2953 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2954 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2955 return mdtype == ClassType ? class_vsm()->sum_capacity_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2956 vsm()->sum_capacity_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2957 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2958
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2959 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	2960 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2961 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2962
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2963 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	2964 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2965 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2966
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2967 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	2968 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2969 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	2970 // 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	2971 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2972 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2973 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2974 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2975 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2976 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2977 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2978 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2979 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2980 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2981 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2982 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2983 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2984 } 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	2985 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	2986
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2987 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2988 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2989 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2990 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2991 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2992 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2993 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2994 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2995 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2996 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2997 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2998 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2999 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3000 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3001
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3002 Metablock* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3003 bool read_only, MetadataType mdtype, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3004 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3005 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3006 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3007 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3008
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3009 // SSS: Should we align the allocations and make sure the sizes are aligned.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3010 MetaWord* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3011
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3012 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	3013 "ClassLoaderData::the_null_class_loader_data() should have been used.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3014 // 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	3015 // 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	3016 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3017 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3018 if (read_only) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3019 result = loader_data->ro_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3020 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3021 result = loader_data->rw_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3022 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3023 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3024 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3025 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3026 return Metablock::initialize(result, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3027 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3028
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3029 result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3030
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3031 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3032 // Try to clean out some memory and retry.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3033 result =
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3034 Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3035 loader_data, word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3036
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3037 // If result is still null, we are out of memory.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3038 if (result == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3039 if (Verbose && TraceMetadataChunkAllocation) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3040 gclog_or_tty->print_cr("Metaspace allocation failed for size "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3041 SIZE_FORMAT, word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3042 if (loader_data->metaspace_or_null() != NULL) loader_data->metaspace_or_null()->dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3043 MetaspaceAux::dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3044 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3045 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3046 report_java_out_of_memory("Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3047
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3048 if (JvmtiExport::should_post_resource_exhausted()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3049 JvmtiExport::post_resource_exhausted(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3050 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3051 "Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3052 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3053 THROW_OOP_0(Universe::out_of_memory_error_perm_gen());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3054 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3055 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3056 return Metablock::initialize(result, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3057 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3058
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3059 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3060 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3061 Mutex::_no_safepoint_check_flag);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3062 space_list()->purge();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3063 class_space_list()->purge();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3064 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3065
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3066 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3067 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3068 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3069 vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3070 class_vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3071 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3072 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3073
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3074 bool Metaspace::contains(const void * ptr) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3075 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3076 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3077 }
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3078 // 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	3079 // 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	3080 // 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	3081 // 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	3082 // caller in MetaspaceObj::is_metadata() function.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3083 return space_list()->contains(ptr) \|\|
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3084 class_space_list()->contains(ptr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3085 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3086
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3087 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3088 vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3089 class_vsm()->verify();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3092 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3093 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3094 vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3095 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3096 class_vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3097 }

Mercurial > hg > truffle

annotate src/share/vm/memory/metaspace.cpp @ 10330:2b1a9d972fc2