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annotate src/share/vm/memory/metaspace.cpp @ 12839:a6414751d537

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8025996: Track metaspace usage when metaspace is expanded Reviewed-by: coleenp, ehelin
author stefank
date Mon, 07 Oct 2013 15:51:17 +0200
parents 85c1ca43713f
children bdfbb1fb19ca
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1 /*
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2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24 #include "precompiled.hpp"
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25 #include "gc_interface/collectedHeap.hpp"
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26 #include "memory/allocation.hpp"
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27 #include "memory/binaryTreeDictionary.hpp"
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28 #include "memory/freeList.hpp"
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29 #include "memory/collectorPolicy.hpp"
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30 #include "memory/filemap.hpp"
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31 #include "memory/freeList.hpp"
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32 #include "memory/gcLocker.hpp"
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33 #include "memory/metablock.hpp"
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34 #include "memory/metachunk.hpp"
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35 #include "memory/metaspace.hpp"
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36 #include "memory/metaspaceShared.hpp"
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37 #include "memory/resourceArea.hpp"
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38 #include "memory/universe.hpp"
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39 #include "runtime/atomic.inline.hpp"
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40 #include "runtime/globals.hpp"
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41 #include "runtime/init.hpp"
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42 #include "runtime/java.hpp"
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43 #include "runtime/mutex.hpp"
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44 #include "runtime/orderAccess.hpp"
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45 #include "services/memTracker.hpp"
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46 #include "services/memoryService.hpp"
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47 #include "utilities/copy.hpp"
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48 #include "utilities/debug.hpp"
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49
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50 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
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51 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
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52 // Define this macro to enable slow integrity checking of
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53 // the free chunk lists
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54 const bool metaspace_slow_verify = false;
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55
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56 // Parameters for stress mode testing
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57 const uint metadata_deallocate_a_lot_block = 10;
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58 const uint metadata_deallocate_a_lock_chunk = 3;
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59 size_t const allocation_from_dictionary_limit = 4 * K;
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60
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61 MetaWord* last_allocated = 0;
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62
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63 size_t Metaspace::_class_metaspace_size;
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64
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65 // Used in declarations in SpaceManager and ChunkManager
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66 enum ChunkIndex {
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67 ZeroIndex = 0,
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68 SpecializedIndex = ZeroIndex,
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69 SmallIndex = SpecializedIndex + 1,
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70 MediumIndex = SmallIndex + 1,
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71 HumongousIndex = MediumIndex + 1,
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72 NumberOfFreeLists = 3,
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73 NumberOfInUseLists = 4
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74 };
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75
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76 enum ChunkSizes { // in words.
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77 ClassSpecializedChunk = 128,
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78 SpecializedChunk = 128,
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79 ClassSmallChunk = 256,
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80 SmallChunk = 512,
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81 ClassMediumChunk = 4 * K,
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82 MediumChunk = 8 * K,
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83 HumongousChunkGranularity = 8
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84 };
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85
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86 static ChunkIndex next_chunk_index(ChunkIndex i) {
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87 assert(i < NumberOfInUseLists, "Out of bound");
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88 return (ChunkIndex) (i+1);
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89 }
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90
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91 volatile intptr_t MetaspaceGC::_capacity_until_GC = 0;
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92 uint MetaspaceGC::_shrink_factor = 0;
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93 bool MetaspaceGC::_should_concurrent_collect = false;
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94
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95 // Blocks of space for metadata are allocated out of Metachunks.
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96 //
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97 // Metachunk are allocated out of MetadataVirtualspaces and once
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98 // allocated there is no explicit link between a Metachunk and
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99 // the MetadataVirtualspaces from which it was allocated.
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100 //
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101 // Each SpaceManager maintains a
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102 // list of the chunks it is using and the current chunk. The current
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103 // chunk is the chunk from which allocations are done. Space freed in
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104 // a chunk is placed on the free list of blocks (BlockFreelist) and
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105 // reused from there.
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106
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107 typedef class FreeList<Metachunk> ChunkList;
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108
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109 // Manages the global free lists of chunks.
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110 // Has three lists of free chunks, and a total size and
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111 // count that includes all three
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112
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113 class ChunkManager : public CHeapObj<mtInternal> {
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114
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115 // Free list of chunks of different sizes.
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116 // SpecializedChunk
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117 // SmallChunk
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118 // MediumChunk
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119 // HumongousChunk
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120 ChunkList _free_chunks[NumberOfFreeLists];
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121
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122
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123 // HumongousChunk
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124 ChunkTreeDictionary _humongous_dictionary;
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125
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126 // ChunkManager in all lists of this type
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127 size_t _free_chunks_total;
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128 size_t _free_chunks_count;
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129
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130 void dec_free_chunks_total(size_t v) {
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131 assert(_free_chunks_count > 0 &&
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132 _free_chunks_total > 0,
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133 "About to go negative");
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134 Atomic::add_ptr(-1, &_free_chunks_count);
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135 jlong minus_v = (jlong) - (jlong) v;
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136 Atomic::add_ptr(minus_v, &_free_chunks_total);
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137 }
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138
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139 // Debug support
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140
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141 size_t sum_free_chunks();
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142 size_t sum_free_chunks_count();
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143
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144 void locked_verify_free_chunks_total();
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145 void slow_locked_verify_free_chunks_total() {
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146 if (metaspace_slow_verify) {
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147 locked_verify_free_chunks_total();
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148 }
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149 }
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150 void locked_verify_free_chunks_count();
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151 void slow_locked_verify_free_chunks_count() {
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152 if (metaspace_slow_verify) {
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153 locked_verify_free_chunks_count();
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154 }
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155 }
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156 void verify_free_chunks_count();
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157
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158 public:
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159
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160 ChunkManager(size_t specialized_size, size_t small_size, size_t medium_size)
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161 : _free_chunks_total(0), _free_chunks_count(0) {
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162 _free_chunks[SpecializedIndex].set_size(specialized_size);
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163 _free_chunks[SmallIndex].set_size(small_size);
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164 _free_chunks[MediumIndex].set_size(medium_size);
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165 }
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166
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167 // add or delete (return) a chunk to the global freelist.
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168 Metachunk* chunk_freelist_allocate(size_t word_size);
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169 void chunk_freelist_deallocate(Metachunk* chunk);
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170
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171 // Map a size to a list index assuming that there are lists
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172 // for special, small, medium, and humongous chunks.
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173 static ChunkIndex list_index(size_t size);
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174
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175 // Remove the chunk from its freelist. It is
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176 // expected to be on one of the _free_chunks[] lists.
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177 void remove_chunk(Metachunk* chunk);
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178
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179 // Add the simple linked list of chunks to the freelist of chunks
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180 // of type index.
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181 void return_chunks(ChunkIndex index, Metachunk* chunks);
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182
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183 // Total of the space in the free chunks list
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184 size_t free_chunks_total_words();
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185 size_t free_chunks_total_bytes();
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186
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187 // Number of chunks in the free chunks list
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188 size_t free_chunks_count();
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189
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190 void inc_free_chunks_total(size_t v, size_t count = 1) {
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191 Atomic::add_ptr(count, &_free_chunks_count);
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192 Atomic::add_ptr(v, &_free_chunks_total);
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193 }
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194 ChunkTreeDictionary* humongous_dictionary() {
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195 return &_humongous_dictionary;
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196 }
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197
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198 ChunkList* free_chunks(ChunkIndex index);
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199
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200 // Returns the list for the given chunk word size.
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201 ChunkList* find_free_chunks_list(size_t word_size);
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202
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203 // Add and remove from a list by size. Selects
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204 // list based on size of chunk.
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205 void free_chunks_put(Metachunk* chuck);
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206 Metachunk* free_chunks_get(size_t chunk_word_size);
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207
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208 // Debug support
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209 void verify();
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210 void slow_verify() {
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211 if (metaspace_slow_verify) {
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212 verify();
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213 }
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214 }
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215 void locked_verify();
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216 void slow_locked_verify() {
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217 if (metaspace_slow_verify) {
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218 locked_verify();
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219 }
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220 }
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221 void verify_free_chunks_total();
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222
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223 void locked_print_free_chunks(outputStream* st);
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224 void locked_print_sum_free_chunks(outputStream* st);
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225
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226 void print_on(outputStream* st) const;
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227 };
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228
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229 // Used to manage the free list of Metablocks (a block corresponds
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230 // to the allocation of a quantum of metadata).
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231 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
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232 BlockTreeDictionary* _dictionary;
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233 static Metablock* initialize_free_chunk(MetaWord* p, size_t word_size);
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234
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235 // Only allocate and split from freelist if the size of the allocation
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236 // is at least 1/4th the size of the available block.
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237 const static int WasteMultiplier = 4;
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238
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239 // Accessors
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240 BlockTreeDictionary* dictionary() const { return _dictionary; }
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241
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242 public:
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243 BlockFreelist();
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244 ~BlockFreelist();
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245
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246 // Get and return a block to the free list
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247 MetaWord* get_block(size_t word_size);
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248 void return_block(MetaWord* p, size_t word_size);
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249
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250 size_t total_size() {
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251 if (dictionary() == NULL) {
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252 return 0;
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253 } else {
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254 return dictionary()->total_size();
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255 }
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256 }
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257
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258 void print_on(outputStream* st) const;
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259 };
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260
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261 class VirtualSpaceNode : public CHeapObj<mtClass> {
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262 friend class VirtualSpaceList;
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263
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264 // Link to next VirtualSpaceNode
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265 VirtualSpaceNode* _next;
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266
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267 // total in the VirtualSpace
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268 MemRegion _reserved;
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269 ReservedSpace _rs;
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270 VirtualSpace _virtual_space;
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271 MetaWord* _top;
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272 // count of chunks contained in this VirtualSpace
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273 uintx _container_count;
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274
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275 // Convenience functions to access the _virtual_space
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276 char* low() const { return virtual_space()->low(); }
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277 char* high() const { return virtual_space()->high(); }
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278
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279 // The first Metachunk will be allocated at the bottom of the
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280 // VirtualSpace
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281 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
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282
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283 public:
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284
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285 VirtualSpaceNode(size_t byte_size);
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286 VirtualSpaceNode(ReservedSpace rs) : _top(NULL), _next(NULL), _rs(rs), _container_count(0) {}
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287 ~VirtualSpaceNode();
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288
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289 // Convenience functions for logical bottom and end
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290 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
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291 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
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292
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293 size_t reserved_words() const { return _virtual_space.reserved_size() / BytesPerWord; }
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294 size_t committed_words() const { return _virtual_space.actual_committed_size() / BytesPerWord; }
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295
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296 bool is_pre_committed() const { return _virtual_space.special(); }
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297
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298 // address of next available space in _virtual_space;
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299 // Accessors
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300 VirtualSpaceNode* next() { return _next; }
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301 void set_next(VirtualSpaceNode* v) { _next = v; }
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302
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303 void set_reserved(MemRegion const v) { _reserved = v; }
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304 void set_top(MetaWord* v) { _top = v; }
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305
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306 // Accessors
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307 MemRegion* reserved() { return &_reserved; }
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308 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
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309
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310 // Returns true if "word_size" is available in the VirtualSpace
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311 bool is_available(size_t word_size) { return _top + word_size <= end(); }
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312
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313 MetaWord* top() const { return _top; }
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314 void inc_top(size_t word_size) { _top += word_size; }
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315
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316 uintx container_count() { return _container_count; }
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317 void inc_container_count();
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318 void dec_container_count();
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319 #ifdef ASSERT
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320 uint container_count_slow();
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321 void verify_container_count();
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322 #endif
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323
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324 // used and capacity in this single entry in the list
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325 size_t used_words_in_vs() const;
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326 size_t capacity_words_in_vs() const;
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327 size_t free_words_in_vs() const;
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328
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329 bool initialize();
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330
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331 // get space from the virtual space
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332 Metachunk* take_from_committed(size_t chunk_word_size);
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333
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334 // Allocate a chunk from the virtual space and return it.
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335 Metachunk* get_chunk_vs(size_t chunk_word_size);
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336
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337 // Expands/shrinks the committed space in a virtual space. Delegates
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338 // to Virtualspace
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339 bool expand_by(size_t min_words, size_t preferred_words);
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340
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341 // In preparation for deleting this node, remove all the chunks
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342 // in the node from any freelist.
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343 void purge(ChunkManager* chunk_manager);
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344
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345 #ifdef ASSERT
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346 // Debug support
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347 void mangle();
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348 #endif
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349
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350 void print_on(outputStream* st) const;
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351 };
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352
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353 #define assert_is_ptr_aligned(ptr, alignment) \
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354 assert(is_ptr_aligned(ptr, alignment), \
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355 err_msg(PTR_FORMAT " is not aligned to " \
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356 SIZE_FORMAT, ptr, alignment))
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357
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358 #define assert_is_size_aligned(size, alignment) \
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359 assert(is_size_aligned(size, alignment), \
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360 err_msg(SIZE_FORMAT " is not aligned to " \
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361 SIZE_FORMAT, size, alignment))
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362
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363
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364 // Decide if large pages should be committed when the memory is reserved.
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365 static bool should_commit_large_pages_when_reserving(size_t bytes) {
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366 if (UseLargePages && UseLargePagesInMetaspace && !os::can_commit_large_page_memory()) {
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367 size_t words = bytes / BytesPerWord;
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368 bool is_class = false; // We never reserve large pages for the class space.
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369 if (MetaspaceGC::can_expand(words, is_class) &&
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370 MetaspaceGC::allowed_expansion() >= words) {
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371 return true;
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372 }
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373 }
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374
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375 return false;
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376 }
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377
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378 // byte_size is the size of the associated virtualspace.
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379 VirtualSpaceNode::VirtualSpaceNode(size_t bytes) : _top(NULL), _next(NULL), _rs(), _container_count(0) {
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380 assert_is_size_aligned(bytes, Metaspace::reserve_alignment());
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381
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382 // This allocates memory with mmap. For DumpSharedspaces, try to reserve
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383 // configurable address, generally at the top of the Java heap so other
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384 // memory addresses don't conflict.
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385 if (DumpSharedSpaces) {
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386 bool large_pages = false; // No large pages when dumping the CDS archive.
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387 char* shared_base = (char*)align_ptr_up((char*)SharedBaseAddress, Metaspace::reserve_alignment());
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388
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389 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages, shared_base, 0);
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390 if (_rs.is_reserved()) {
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391 assert(shared_base == 0 || _rs.base() == shared_base, "should match");
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392 } else {
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393 // Get a mmap region anywhere if the SharedBaseAddress fails.
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394 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
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395 }
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396 MetaspaceShared::set_shared_rs(&_rs);
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397 } else {
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398 bool large_pages = should_commit_large_pages_when_reserving(bytes);
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399
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400 _rs = ReservedSpace(bytes, Metaspace::reserve_alignment(), large_pages);
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401 }
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402
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403 if (_rs.is_reserved()) {
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404 assert(_rs.base() != NULL, "Catch if we get a NULL address");
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405 assert(_rs.size() != 0, "Catch if we get a 0 size");
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406 assert_is_ptr_aligned(_rs.base(), Metaspace::reserve_alignment());
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407 assert_is_size_aligned(_rs.size(), Metaspace::reserve_alignment());
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408
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409 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
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410 }
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411 }
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412
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413 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
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414 Metachunk* chunk = first_chunk();
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415 Metachunk* invalid_chunk = (Metachunk*) top();
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416 while (chunk < invalid_chunk ) {
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417 assert(chunk->is_free(), "Should be marked free");
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418 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
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419 chunk_manager->remove_chunk(chunk);
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420 assert(chunk->next() == NULL &&
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421 chunk->prev() == NULL,
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422 "Was not removed from its list");
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423 chunk = (Metachunk*) next;
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424 }
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425 }
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426
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427 #ifdef ASSERT
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428 uint VirtualSpaceNode::container_count_slow() {
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429 uint count = 0;
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430 Metachunk* chunk = first_chunk();
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431 Metachunk* invalid_chunk = (Metachunk*) top();
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432 while (chunk < invalid_chunk ) {
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433 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
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434 // Don't count the chunks on the free lists. Those are
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435 // still part of the VirtualSpaceNode but not currently
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436 // counted.
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437 if (!chunk->is_free()) {
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438 count++;
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439 }
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440 chunk = (Metachunk*) next;
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441 }
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442 return count;
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443 }
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444 #endif
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445
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446 // List of VirtualSpaces for metadata allocation.
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447 class VirtualSpaceList : public CHeapObj<mtClass> {
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448 friend class VirtualSpaceNode;
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449
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450 enum VirtualSpaceSizes {
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451 VirtualSpaceSize = 256 * K
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452 };
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453
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454 // Head of the list
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455 VirtualSpaceNode* _virtual_space_list;
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456 // virtual space currently being used for allocations
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457 VirtualSpaceNode* _current_virtual_space;
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458
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459 // Is this VirtualSpaceList used for the compressed class space
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460 bool _is_class;
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461
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462 // Sum of reserved and committed memory in the virtual spaces
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463 size_t _reserved_words;
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464 size_t _committed_words;
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465
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466 // Number of virtual spaces
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467 size_t _virtual_space_count;
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468
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469 ~VirtualSpaceList();
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470
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471 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
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472
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473 void set_virtual_space_list(VirtualSpaceNode* v) {
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474 _virtual_space_list = v;
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475 }
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476 void set_current_virtual_space(VirtualSpaceNode* v) {
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477 _current_virtual_space = v;
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478 }
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479
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480 void link_vs(VirtualSpaceNode* new_entry);
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481
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482 // Get another virtual space and add it to the list. This
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483 // is typically prompted by a failed attempt to allocate a chunk
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484 // and is typically followed by the allocation of a chunk.
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485 bool create_new_virtual_space(size_t vs_word_size);
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486
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487 public:
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488 VirtualSpaceList(size_t word_size);
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489 VirtualSpaceList(ReservedSpace rs);
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490
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491 size_t free_bytes();
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492
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493 Metachunk* get_new_chunk(size_t word_size,
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494 size_t grow_chunks_by_words,
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495 size_t medium_chunk_bunch);
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496
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497 bool expand_node_by(VirtualSpaceNode* node,
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498 size_t min_words,
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499 size_t preferred_words);
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500
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501 bool expand_by(size_t min_words,
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502 size_t preferred_words);
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503
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504 VirtualSpaceNode* current_virtual_space() {
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505 return _current_virtual_space;
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506 }
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507
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508 bool is_class() const { return _is_class; }
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509
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510 bool initialization_succeeded() { return _virtual_space_list != NULL; }
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511
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512 size_t reserved_words() { return _reserved_words; }
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513 size_t reserved_bytes() { return reserved_words() * BytesPerWord; }
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514 size_t committed_words() { return _committed_words; }
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515 size_t committed_bytes() { return committed_words() * BytesPerWord; }
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516
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517 void inc_reserved_words(size_t v);
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518 void dec_reserved_words(size_t v);
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519 void inc_committed_words(size_t v);
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520 void dec_committed_words(size_t v);
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521 void inc_virtual_space_count();
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522 void dec_virtual_space_count();
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523
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524 // Unlink empty VirtualSpaceNodes and free it.
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525 void purge(ChunkManager* chunk_manager);
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526
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527 bool contains(const void *ptr);
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528
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529 void print_on(outputStream* st) const;
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530
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531 class VirtualSpaceListIterator : public StackObj {
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532 VirtualSpaceNode* _virtual_spaces;
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533 public:
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534 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
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535 _virtual_spaces(virtual_spaces) {}
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536
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537 bool repeat() {
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538 return _virtual_spaces != NULL;
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539 }
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540
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541 VirtualSpaceNode* get_next() {
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542 VirtualSpaceNode* result = _virtual_spaces;
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543 if (_virtual_spaces != NULL) {
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544 _virtual_spaces = _virtual_spaces->next();
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545 }
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546 return result;
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547 }
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548 };
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549 };
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550
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551 class Metadebug : AllStatic {
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552 // Debugging support for Metaspaces
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553 static int _deallocate_block_a_lot_count;
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554 static int _deallocate_chunk_a_lot_count;
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555 static int _allocation_fail_alot_count;
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556
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557 public:
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558 static int deallocate_block_a_lot_count() {
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559 return _deallocate_block_a_lot_count;
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560 }
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561 static void set_deallocate_block_a_lot_count(int v) {
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562 _deallocate_block_a_lot_count = v;
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563 }
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564 static void inc_deallocate_block_a_lot_count() {
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565 _deallocate_block_a_lot_count++;
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566 }
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567 static int deallocate_chunk_a_lot_count() {
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568 return _deallocate_chunk_a_lot_count;
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569 }
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570 static void reset_deallocate_chunk_a_lot_count() {
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571 _deallocate_chunk_a_lot_count = 1;
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572 }
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573 static void inc_deallocate_chunk_a_lot_count() {
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574 _deallocate_chunk_a_lot_count++;
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575 }
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576
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577 static void init_allocation_fail_alot_count();
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578 #ifdef ASSERT
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579 static bool test_metadata_failure();
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580 #endif
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581
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582 static void deallocate_chunk_a_lot(SpaceManager* sm,
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583 size_t chunk_word_size);
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584 static void deallocate_block_a_lot(SpaceManager* sm,
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585 size_t chunk_word_size);
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586
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587 };
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588
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589 int Metadebug::_deallocate_block_a_lot_count = 0;
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590 int Metadebug::_deallocate_chunk_a_lot_count = 0;
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591 int Metadebug::_allocation_fail_alot_count = 0;
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592
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593 // SpaceManager - used by Metaspace to handle allocations
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594 class SpaceManager : public CHeapObj<mtClass> {
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595 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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596 friend class Metadebug;
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597
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598 private:
7446
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599
6725
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600 // protects allocations and contains.
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601 Mutex* const _lock;
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coleenp
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602
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
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diff changeset
603 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
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604 Metaspace::MetadataType _mdtype;
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605
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606 // List of chunks in use by this SpaceManager. Allocations
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607 // are done from the current chunk. The list is used for deallocating
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608 // chunks when the SpaceManager is freed.
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609 Metachunk* _chunks_in_use[NumberOfInUseLists];
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610 Metachunk* _current_chunk;
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611
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612 // Number of small chunks to allocate to a manager
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613 // If class space manager, small chunks are unlimited
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614 static uint const _small_chunk_limit;
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615
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616 // Sum of all space in allocated chunks
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617 size_t _allocated_blocks_words;
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618
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619 // Sum of all allocated chunks
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620 size_t _allocated_chunks_words;
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621 size_t _allocated_chunks_count;
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622
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623 // Free lists of blocks are per SpaceManager since they
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624 // are assumed to be in chunks in use by the SpaceManager
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625 // and all chunks in use by a SpaceManager are freed when
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626 // the class loader using the SpaceManager is collected.
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627 BlockFreelist _block_freelists;
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628
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629 // protects virtualspace and chunk expansions
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630 static const char* _expand_lock_name;
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631 static const int _expand_lock_rank;
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632 static Mutex* const _expand_lock;
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633
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634 private:
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635 // Accessors
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636 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
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637 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
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638
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639 BlockFreelist* block_freelists() const {
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640 return (BlockFreelist*) &_block_freelists;
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641 }
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642
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643 Metaspace::MetadataType mdtype() { return _mdtype; }
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644
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645 VirtualSpaceList* vs_list() const { return Metaspace::get_space_list(_mdtype); }
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646 ChunkManager* chunk_manager() const { return Metaspace::get_chunk_manager(_mdtype); }
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647
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648 Metachunk* current_chunk() const { return _current_chunk; }
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649 void set_current_chunk(Metachunk* v) {
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650 _current_chunk = v;
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651 }
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652
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653 Metachunk* find_current_chunk(size_t word_size);
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654
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655 // Add chunk to the list of chunks in use
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656 void add_chunk(Metachunk* v, bool make_current);
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657 void retire_current_chunk();
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658
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659 Mutex* lock() const { return _lock; }
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660
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661 const char* chunk_size_name(ChunkIndex index) const;
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662
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663 protected:
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664 void initialize();
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665
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666 public:
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667 SpaceManager(Metaspace::MetadataType mdtype,
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668 Mutex* lock);
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669 ~SpaceManager();
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670
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671 enum ChunkMultiples {
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672 MediumChunkMultiple = 4
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673 };
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674
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675 bool is_class() { return _mdtype == Metaspace::ClassType; }
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diff changeset
676
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677 // Accessors
7446
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678 size_t specialized_chunk_size() { return SpecializedChunk; }
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679 size_t small_chunk_size() { return (size_t) is_class() ? ClassSmallChunk : SmallChunk; }
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680 size_t medium_chunk_size() { return (size_t) is_class() ? ClassMediumChunk : MediumChunk; }
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681 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
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diff changeset
682
10183
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683 size_t allocated_blocks_words() const { return _allocated_blocks_words; }
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684 size_t allocated_blocks_bytes() const { return _allocated_blocks_words * BytesPerWord; }
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685 size_t allocated_chunks_words() const { return _allocated_chunks_words; }
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686 size_t allocated_chunks_count() const { return _allocated_chunks_count; }
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diff changeset
687
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diff changeset
688 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
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689
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690 static Mutex* expand_lock() { return _expand_lock; }
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diff changeset
691
10183
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diff changeset
692 // Increment the per Metaspace and global running sums for Metachunks
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jmasa
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diff changeset
693 // by the given size. This is used when a Metachunk to added to
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jmasa
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diff changeset
694 // the in-use list.
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diff changeset
695 void inc_size_metrics(size_t words);
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jmasa
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diff changeset
696 // Increment the per Metaspace and global running sums Metablocks by the given
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jmasa
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diff changeset
697 // size. This is used when a Metablock is allocated.
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jmasa
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diff changeset
698 void inc_used_metrics(size_t words);
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diff changeset
699 // Delete the portion of the running sums for this SpaceManager. That is,
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jmasa
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diff changeset
700 // the globals running sums for the Metachunks and Metablocks are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
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diff changeset
701 // decremented for all the Metachunks in-use by this SpaceManager.
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diff changeset
702 void dec_total_from_size_metrics();
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diff changeset
703
7446
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diff changeset
704 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
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diff changeset
705 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
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diff changeset
706 size_t* chunk_word_size,
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diff changeset
707 size_t* class_chunk_word_size);
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diff changeset
708
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709 size_t sum_capacity_in_chunks_in_use() const;
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diff changeset
710 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
711 size_t sum_free_in_chunks_in_use() const;
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712 size_t sum_waste_in_chunks_in_use() const;
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diff changeset
713 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents:
diff changeset
714
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
715 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
716 size_t sum_count_in_chunks_in_use(ChunkIndex i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
717
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
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diff changeset
718 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
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diff changeset
719
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diff changeset
720 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
721 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
722 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents:
diff changeset
723
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents:
diff changeset
724 // Helper for allocations
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
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diff changeset
725 MetaWord* allocate_work(size_t word_size);
6725
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diff changeset
726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
727 // Returns a block to the per manager freelist
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
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diff changeset
728 void deallocate(MetaWord* p, size_t word_size);
6725
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parents:
diff changeset
729
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
730 // 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
731 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
732 size_t calc_chunk_size(size_t allocation_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents:
diff changeset
733
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
734 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
735 // 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
736 // and allocates from that chunk.
6885
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diff changeset
737 MetaWord* grow_and_allocate(size_t word_size);
6725
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parents:
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738
12839
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
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diff changeset
739 // Notify memory usage to MemoryService.
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diff changeset
740 void track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
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diff changeset
741
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742 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents:
diff changeset
743
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
744 void dump(outputStream* const out) const;
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745 void print_on(outputStream* st) const;
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diff changeset
746 void locked_print_chunks_in_use_on(outputStream* st) const;
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parents:
diff changeset
747
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
748 void verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
749 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
750 NOT_PRODUCT(void mangle_freed_chunks();)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
751 #ifdef ASSERT
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
752 void verify_allocated_blocks_words();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
753 #endif
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
754
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
755 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
756 // If only the dictionary is going to be used (i.e., no
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
757 // indexed free list), then there is a minimum size requirement.
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
758 // MinChunkSize is a placeholder for the real minimum size JJJ
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
759 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
760
12237
335b388c4b28 8024651: Remove the incorrect usage of Metablock::overhead()
stefank
parents: 12236
diff changeset
761 size_t raw_bytes_size = MAX2(byte_size,
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
762 Metablock::min_block_byte_size());
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
763 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
764 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
765 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
766
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
767 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
768 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
769 };
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 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
772
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
773 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
774 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
775 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
776 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
777 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
778 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
779 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
780
10175
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jmasa
parents: 10101
diff changeset
781 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
782 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
783 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
784 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
785 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
786 " container_count_slow() " SIZE_FORMAT,
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
787 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
788 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
789
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
790 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
791 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
792 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
793 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
794
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
795 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
796 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
797 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
798 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
799 " container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
800 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
801 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
802
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
803 // BlockFreelist methods
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 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
806
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
807 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
808 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
809 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
810 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
811 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
812 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
813 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
814 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
815
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
816 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
817 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
818 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
819 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
820 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
821
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
822 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
823 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
824
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
825 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
826 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
827 if (dictionary() == NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
828 _dictionary = new BlockTreeDictionary();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
829 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
830 dictionary()->return_chunk(free_chunk);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
831 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
832
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
833 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
834 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
835 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
836 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
837
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
838 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
839 // Dark matter. Too small for dictionary.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
840 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
841 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
842
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
843 Metablock* free_block =
12231
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
844 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
845 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
846 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
847 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
848
12231
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
849 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
850 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
851 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
852 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
853 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
854
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
855 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
856 assert(block_size >= word_size, "Incorrect size of block from freelist");
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
857 const size_t unused = block_size - word_size;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
858 if (unused >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
859 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
860 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
861
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
862 return new_block;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
863 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
864
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
865 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
866 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
867 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
868 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
869 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
870 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
871
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
872 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
874 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
875 _rs.release();
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
876 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
877 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
878 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
879 #endif
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
880 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
881
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
882 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
883 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
884 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
885
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
886 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
887 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
888 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
889 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
890
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
891 size_t VirtualSpaceNode::free_words_in_vs() const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
892 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
893 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
894
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
895 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
896 // This interface is also used internally for debugging. Not all
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
897 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
898 Metachunk* VirtualSpaceNode::take_from_committed(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
899 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
900 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
901 assert(chunk_limit != NULL, "Not safe to call this method");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
902
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
903 // The virtual spaces are always expanded by the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
904 // commit granularity to enforce the following condition.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
905 // Without this the is_available check will not work correctly.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
906 assert(_virtual_space.committed_size() == _virtual_space.actual_committed_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
907 "The committed memory doesn't match the expanded memory.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
908
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
909 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
910 if (TraceMetadataChunkAllocation) {
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
911 gclog_or_tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
912 // Dump some information about the virtual space that is nearly full
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
913 print_on(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
914 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
915 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
916 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
917
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
918 // Take the space (bump top on the current virtual space).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
919 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
920
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
921 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
922 Metachunk* result = ::new (chunk_limit) Metachunk(chunk_word_size, this);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
923 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
924 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
925
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
926
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
927 // Expand the virtual space (commit more of the reserved space)
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
928 bool VirtualSpaceNode::expand_by(size_t min_words, size_t preferred_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
929 size_t min_bytes = min_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
930 size_t preferred_bytes = preferred_words * BytesPerWord;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
931
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
932 size_t uncommitted = virtual_space()->reserved_size() - virtual_space()->actual_committed_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
933
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
934 if (uncommitted < min_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
935 return false;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
936 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
937
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
938 size_t commit = MIN2(preferred_bytes, uncommitted);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
939 bool result = virtual_space()->expand_by(commit, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
940
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
941 assert(result, "Failed to commit memory");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
942
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
943 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
944 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
945
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
946 Metachunk* VirtualSpaceNode::get_chunk_vs(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
947 assert_lock_strong(SpaceManager::expand_lock());
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
948 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
949 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
950 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
951 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
952 return result;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
953 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
954
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
955 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
956
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
957 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
958 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
960
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
961 // These are necessary restriction to make sure that the virtual space always
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
962 // grows in steps of Metaspace::commit_alignment(). If both base and size are
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
963 // aligned only the middle alignment of the VirtualSpace is used.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
964 assert_is_ptr_aligned(_rs.base(), Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
965 assert_is_size_aligned(_rs.size(), Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
966
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
967 // ReservedSpaces marked as special will have the entire memory
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
968 // pre-committed. Setting a committed size will make sure that
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
969 // committed_size and actual_committed_size agrees.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
970 size_t pre_committed_size = _rs.special() ? _rs.size() : 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
971
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
972 bool result = virtual_space()->initialize_with_granularity(_rs, pre_committed_size,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
973 Metaspace::commit_alignment());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
974 if (result) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
975 assert(virtual_space()->committed_size() == virtual_space()->actual_committed_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
976 "Checking that the pre-committed memory was registered by the VirtualSpace");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
977
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
978 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
979 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
980 (HeapWord*)(_rs.base() + _rs.size())));
6726
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
981
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
982 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
983 err_msg("Reserved start was not set properly " PTR_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
984 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
985 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
986 err_msg("Reserved size was not set properly " SIZE_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
987 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
988 _rs.size() / BytesPerWord));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
989 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
990
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
991 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
992 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
993
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
994 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
995 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
996 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
997 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
998 st->print_cr(" space @ " PTR_FORMAT " " SIZE_FORMAT "K, %3d%% used "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
999 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1000 PTR_FORMAT ", " PTR_FORMAT ")",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1001 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1002 capacity == 0 ? 0 : used * 100 / capacity,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1003 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1004 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1005 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1006
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1007 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1008 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1009 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1010 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1011 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1012 #endif // ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1013
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1014 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1015 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1016
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1017 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1018 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1019 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1020 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1021 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1022 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1023 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1024
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1025 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1026 assert_lock_strong(SpaceManager::expand_lock());
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1027 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1028 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1029 void VirtualSpaceList::dec_reserved_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1030 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1031 _reserved_words = _reserved_words - v;
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1032 }
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1033
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1034 #define assert_committed_below_limit() \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1035 assert(MetaspaceAux::committed_bytes() <= MaxMetaspaceSize, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1036 err_msg("Too much committed memory. Committed: " SIZE_FORMAT \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1037 " limit (MaxMetaspaceSize): " SIZE_FORMAT, \
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1038 MetaspaceAux::committed_bytes(), MaxMetaspaceSize));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1039
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1040 void VirtualSpaceList::inc_committed_words(size_t v) {
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1041 assert_lock_strong(SpaceManager::expand_lock());
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1042 _committed_words = _committed_words + v;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1043
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1044 assert_committed_below_limit();
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1045 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1046 void VirtualSpaceList::dec_committed_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1047 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1048 _committed_words = _committed_words - v;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1049
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1050 assert_committed_below_limit();
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1051 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1052
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1053 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1054 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1055 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1056 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1057 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1058 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1059 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1060 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1061
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1062 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1063 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1064 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1065 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1066 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1067 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1068 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1069 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1070
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1071 // Chunk is being removed from the chunks free list.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1072 dec_free_chunks_total(chunk->capacity_word_size());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1073 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1074
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1075 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1076 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1077 // the node from their respective freelists.
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1078 void VirtualSpaceList::purge(ChunkManager* chunk_manager) {
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1079 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1080 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1081 // 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
1082 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1083 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1084 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1085 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1086 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1087 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1088 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1089 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1090 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1091 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1092 if (prev_vsl == vsl) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1093 // This is the case of the current node being the first node.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1094 assert(vsl == virtual_space_list(), "Expected to be the first node");
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1095 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1096 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1097 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1098 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1099
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1100 vsl->purge(chunk_manager);
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1101 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1102 dec_committed_words(vsl->committed_words());
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1103 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1104 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1105 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1106 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1107 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1108 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1109 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1110 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1111 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1112 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1113 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1114 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1115 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1116 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1117 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1118 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1119 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1120 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1121
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1122 VirtualSpaceList::VirtualSpaceList(size_t word_size) :
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1123 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1124 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1125 _current_virtual_space(NULL),
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1126 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1127 _committed_words(0),
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1128 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1129 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1130 Mutex::_no_safepoint_check_flag);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1131 create_new_virtual_space(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1132 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1133
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1134 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1135 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1136 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1137 _current_virtual_space(NULL),
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1138 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1139 _committed_words(0),
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1140 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1141 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1142 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1143 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1144 bool succeeded = class_entry->initialize();
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1145 if (succeeded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1146 link_vs(class_entry);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1147 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1148 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1149
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1150 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1151 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
1152 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1153
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1154 // Allocate another meta virtual space and add it to the list.
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1155 bool VirtualSpaceList::create_new_virtual_space(size_t vs_word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1156 assert_lock_strong(SpaceManager::expand_lock());
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1157
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1158 if (is_class()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1159 assert(false, "We currently don't support more than one VirtualSpace for"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1160 " the compressed class space. The initialization of the"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1161 " CCS uses another code path and should not hit this path.");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1162 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1163 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1164
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1165 if (vs_word_size == 0) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1166 assert(false, "vs_word_size should always be at least _reserve_alignment large.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1167 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1168 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1169
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1170 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1171 size_t vs_byte_size = vs_word_size * BytesPerWord;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1172 assert_is_size_aligned(vs_byte_size, Metaspace::reserve_alignment());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1173
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1174 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1175 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1176 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1177 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1178 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1179 } else {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1180 assert(new_entry->reserved_words() == vs_word_size,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1181 "Reserved memory size differs from requested memory size");
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
1182 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
1183 OrderAccess::storestore();
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1184 link_vs(new_entry);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1185 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1186 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1187 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1188
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1189 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1190 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1191 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1192 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1193 current_virtual_space()->set_next(new_entry);
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 set_current_virtual_space(new_entry);
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1196 inc_reserved_words(new_entry->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1197 inc_committed_words(new_entry->committed_words());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1198 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1199 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1200 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1201 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1202 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1203 VirtualSpaceNode* vsl = current_virtual_space();
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1204 vsl->print_on(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1205 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1206 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1207
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1208 bool VirtualSpaceList::expand_node_by(VirtualSpaceNode* node,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1209 size_t min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1210 size_t preferred_words) {
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1211 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1212
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1213 bool result = node->expand_by(min_words, preferred_words);
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1214
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1215 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1216
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1217 // after and before can be the same if the memory was pre-committed.
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1218 assert(after >= before, "Inconsistency");
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1219 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1220
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1221 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1222 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
1223
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1224 bool VirtualSpaceList::expand_by(size_t min_words, size_t preferred_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1225 assert_is_size_aligned(min_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1226 assert_is_size_aligned(preferred_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1227 assert(min_words <= preferred_words, "Invalid arguments");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1228
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1229 if (!MetaspaceGC::can_expand(min_words, this->is_class())) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1230 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1231 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1232
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1233 size_t allowed_expansion_words = MetaspaceGC::allowed_expansion();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1234 if (allowed_expansion_words < min_words) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1235 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1236 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1237
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1238 size_t max_expansion_words = MIN2(preferred_words, allowed_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1239
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1240 // Commit more memory from the the current virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1241 bool vs_expanded = expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1242 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1243 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1244 if (vs_expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1245 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1246 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1247
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1248 // Get another virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1249 size_t grow_vs_words = MAX2((size_t)VirtualSpaceSize, preferred_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1250 grow_vs_words = align_size_up(grow_vs_words, Metaspace::reserve_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1251
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1252 if (create_new_virtual_space(grow_vs_words)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1253 if (current_virtual_space()->is_pre_committed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1254 // The memory was pre-committed, so we are done here.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1255 assert(min_words <= current_virtual_space()->committed_words(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1256 "The new VirtualSpace was pre-committed, so it"
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1257 "should be large enough to fit the alloc request.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1258 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1259 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1260
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1261 return expand_node_by(current_virtual_space(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1262 min_words,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1263 max_expansion_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1264 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1265
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1266 return false;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1267 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1268
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1269 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
1270 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1271 size_t medium_chunk_bunch) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1272
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1273 // Allocate a chunk out of the current virtual space.
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1274 Metachunk* next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1275
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1276 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1277 return next;
6725
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
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1280 // The expand amount is currently only determined by the requested sizes
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1281 // and not how much committed memory is left in the current virtual space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1282
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1283 size_t min_word_size = align_size_up(grow_chunks_by_words, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1284 size_t preferred_word_size = align_size_up(medium_chunk_bunch, Metaspace::commit_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1285 if (min_word_size >= preferred_word_size) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1286 // Can happen when humongous chunks are allocated.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1287 preferred_word_size = min_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1288 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1289
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1290 bool expanded = expand_by(min_word_size, preferred_word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1291 if (expanded) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1292 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1293 assert(next != NULL, "The allocation was expected to succeed after the expansion");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1294 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1295
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1296 return next;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1297 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1298
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1299 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1300 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1301 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1302 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1303 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1304 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1305 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1306 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1307 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1308
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1309 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1310 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1311 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1312 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1313 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1314 if (node->reserved()->contains(ptr)) {
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1317 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1318 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1319 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1320
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1321
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1322 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1323
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1324 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1325 // 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
1326 // 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
1327 // 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
1328 // 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
1329 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1330 // 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
1331 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1332 // 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
1333 // 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
1334 // 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
1335 // 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
1336 // 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
1337 // 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
1338 // 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
1339 // 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
1340 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1341
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1342 // 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
1343 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1344 // another expansion is not requested too soon. If that is not
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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diff changeset
1345 // enough to satisfy the allocation, increase by MaxMetaspaceExpansion.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1346 // If that is still not enough, expand by the size of the allocation
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1347 // plus some.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1348 size_t MetaspaceGC::delta_capacity_until_GC(size_t bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1349 size_t min_delta = MinMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1350 size_t max_delta = MaxMetaspaceExpansion;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1351 size_t delta = align_size_up(bytes, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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diff changeset
1352
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1353 if (delta <= min_delta) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1354 delta = min_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1355 } else if (delta <= max_delta) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1356 // 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
1357 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1358 // for this allocation.
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1359 delta = max_delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1360 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1361 // This allocation is large but the next ones are probably not
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1362 // so increase by the minimum.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1363 delta = delta + min_delta;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1364 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1365
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1366 assert_is_size_aligned(delta, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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diff changeset
1367
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1368 return delta;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1369 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1370
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1371 size_t MetaspaceGC::capacity_until_GC() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1372 size_t value = (size_t)OrderAccess::load_ptr_acquire(&_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1373 assert(value >= MetaspaceSize, "Not initialied properly?");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1374 return value;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1375 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1376
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1377 size_t MetaspaceGC::inc_capacity_until_GC(size_t v) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1378 assert_is_size_aligned(v, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1379
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1380 return (size_t)Atomic::add_ptr(v, &_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1381 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1382
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1383 size_t MetaspaceGC::dec_capacity_until_GC(size_t v) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1384 assert_is_size_aligned(v, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1385
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1386 return (size_t)Atomic::add_ptr(-(intptr_t)v, &_capacity_until_GC);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1387 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1388
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1389 bool MetaspaceGC::can_expand(size_t word_size, bool is_class) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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parents: 12340
diff changeset
1390 // Check if the compressed class space is full.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1391 if (is_class && Metaspace::using_class_space()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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diff changeset
1392 size_t class_committed = MetaspaceAux::committed_bytes(Metaspace::ClassType);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
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diff changeset
1393 if (class_committed + word_size * BytesPerWord > CompressedClassSpaceSize) {
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
1394 return false;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
1395 }
8790
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1396 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1397
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1398 // Check if the user has imposed a limit on the metaspace memory.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1399 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1400 if (committed_bytes + word_size * BytesPerWord > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1401 return false;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1402 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1403
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
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diff changeset
1404 return true;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1405 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1406
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1407 size_t MetaspaceGC::allowed_expansion() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1408 size_t committed_bytes = MetaspaceAux::committed_bytes();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1409
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1410 size_t left_until_max = MaxMetaspaceSize - committed_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1411
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1412 // Always grant expansion if we are initiating the JVM,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1413 // or if the GC_locker is preventing GCs.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1414 if (!is_init_completed() || GC_locker::is_active_and_needs_gc()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1415 return left_until_max / BytesPerWord;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1416 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1417
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1418 size_t capacity_until_gc = capacity_until_GC();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1419
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1420 if (capacity_until_gc <= committed_bytes) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1421 return 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1422 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1423
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1424 size_t left_until_GC = capacity_until_gc - committed_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1425 size_t left_to_commit = MIN2(left_until_GC, left_until_max);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1426
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1427 return left_to_commit / BytesPerWord;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1428 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1429
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1430 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1431 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1432 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1433 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1434
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1435 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
1436 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
1437
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1438 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1439 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
1440
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1441 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
1442 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1443 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1444 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1445 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1446 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1447
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1448 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1449 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1450 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1451 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1452 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1453 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1454 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1455 gclog_or_tty->print_cr(" "
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1456 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1457 used_after_gc / (double) K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1458 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1459
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1460
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1461 size_t shrink_bytes = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1462 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1463 // 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
1464 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1465 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1466 expand_bytes = align_size_up(expand_bytes, Metaspace::commit_alignment());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1467 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1468 if (expand_bytes >= MinMetaspaceExpansion) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1469 MetaspaceGC::inc_capacity_until_GC(expand_bytes);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1470 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1471 if (PrintGCDetails && Verbose) {
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1472 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
1473 gclog_or_tty->print_cr(" expanding:"
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1474 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1475 " expand_bytes: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1476 " MinMetaspaceExpansion: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1477 " new metaspace HWM: %6.1fKB",
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1478 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1479 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1480 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1481 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1482 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1483 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1484 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1485
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1486 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1487 // 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
1488 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
1489 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
1490 max_shrink_bytes));
6725
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 // Should shrinking be considered?
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1493 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1494 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1495 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
1496 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
1497 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
1498 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1499 MetaspaceSize);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1500 if (PrintGCDetails && Verbose) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1501 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1502 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1503 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1504 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1505 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1506 gclog_or_tty->print_cr(" "
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1507 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1508 " maximum_desired_capacity: %6.1fKB",
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1509 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1510 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1511 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1512
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1513 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1514 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1515
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1516 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1517 // Capacity too large, compute shrinking size
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1518 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1519 // 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
1520 // 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
1521 // 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
1522 // 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
1523 // 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
1524 // 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
1525 shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1526
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1527 shrink_bytes = align_size_down(shrink_bytes, Metaspace::commit_alignment());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1528
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1529 assert(shrink_bytes <= max_shrink_bytes,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1530 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
1531 shrink_bytes, max_shrink_bytes));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1532 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1533 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1534 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1535 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1536 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1537 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1538 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1539 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1540 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1541 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1542 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1543 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1544 gclog_or_tty->print_cr(" "
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1545 " shrink_bytes: %.1fK"
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1546 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1547 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1548 " MinMetaspaceExpansion: %.1fK",
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1549 shrink_bytes / (double) K,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1550 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1551 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1552 MinMetaspaceExpansion / (double) K);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1555 }
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 // 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
1558 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1559 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1560 MetaspaceGC::dec_capacity_until_GC(shrink_bytes);
6725
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1563
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1564 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1565
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1566 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1567 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1568 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1569 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1570 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1571 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1572 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1573 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
1574 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
1575 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1576 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1577 }
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1578 sm->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1579
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1580 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1581 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
1582 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1583 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1584 gclog_or_tty->print_cr(" Free chunks total %d count %d",
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1585 sm->chunk_manager()->free_chunks_total_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1586 sm->chunk_manager()->free_chunks_count());
6725
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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1590 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1591 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1592 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1593 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1594
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1595 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1596 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1597 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1598 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1599 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1600 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1601 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
1602 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
1603 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1604 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1605 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1606 sm->deallocate(dummy_block, raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1607 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1608 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1609 Metadebug::inc_deallocate_block_a_lot_count();
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 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1612 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1613
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1614 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1615 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1616 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1617 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
1618 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1619 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1621 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1622 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1623 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1624 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1625 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1626 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1627 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1628 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1629 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1630 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1631 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1632 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1633 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1634 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1635 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1636 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1637 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1638 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1639
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1640 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1641
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
1642 size_t ChunkManager::free_chunks_total_words() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1643 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1645
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
1646 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
1647 return free_chunks_total_words() * BytesPerWord;
6725
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1650 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1651 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1652 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1653 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1654 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1655 // 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
1656 // 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
1657 slow_locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1658 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1659 #endif
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1660 return _free_chunks_count;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1662
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1663 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1664 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1665 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1666 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
1667 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1668 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1669 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1670
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1671 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1672 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1673 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1674 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1675 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1676
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1677 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1678 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1679 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1680 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
1681 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1682 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1683 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1684
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1685 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1686 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1687 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1688 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1689 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1690 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1691 }
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 void ChunkManager::verify() {
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1694 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1695 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1696 locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1697 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1698
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1699 void ChunkManager::locked_verify() {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1700 locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1701 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1702 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1703
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1704 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1705 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1706 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
1707 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1708 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1709
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1710 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1711 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1712 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
1713 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1714 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1715 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1716 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1717 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1718
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1719 // 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
1720 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1721 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1722 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1723 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1724 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
1725 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1727 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1728 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1729 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1730
10101
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
1731 result = result + list->count() * list->size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1732 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1733 result = result + humongous_dictionary()->total_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1734 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1735 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1736
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1737 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1738 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1739 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1740 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
1741 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1742 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1743 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1744 }
10101
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
1745 count = count + list->count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1746 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1747 count = count + humongous_dictionary()->total_free_blocks();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1748 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1749 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1750
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1751 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
1752 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1753 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1754 return free_chunks(index);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1755 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1756
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1757 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1758 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1759 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
1760 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1761 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1762 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1763 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
1764 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1765 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1766
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1767 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1768 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1769 // 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
1770 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1771 assert(chunk != NULL, "Deallocating NULL");
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1772 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1773 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1774 if (TraceMetadataChunkAllocation) {
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1775 gclog_or_tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1776 PTR_FORMAT " size " SIZE_FORMAT,
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1777 chunk, chunk->word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1778 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1779 free_chunks_put(chunk);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1782 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1783 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1784
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1785 slow_locked_verify();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1786
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1787 Metachunk* chunk = NULL;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1788 if (list_index(word_size) != HumongousIndex) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1789 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1790 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1791
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1792 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1793
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1794 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1795 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1796 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1797
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1798 // 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
1799 free_list->remove_chunk(chunk);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1800
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1801 if (TraceMetadataChunkAllocation && Verbose) {
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1802 gclog_or_tty->print_cr("ChunkManager::free_chunks_get: free_list "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1803 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1804 free_list, chunk, chunk->word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1805 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1806 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1807 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1808 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1809 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1810
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1811 if (chunk == NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1812 return NULL;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1813 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1814
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1815 if (TraceMetadataHumongousAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1816 size_t waste = chunk->word_size() - word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1817 gclog_or_tty->print_cr("Free list allocate humongous chunk size "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1818 SIZE_FORMAT " for requested size " SIZE_FORMAT
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1819 " waste " SIZE_FORMAT,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1820 chunk->word_size(), word_size, waste);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1821 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1822 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1823
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1824 // Chunk is being removed from the chunks free list.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1825 dec_free_chunks_total(chunk->capacity_word_size());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
1826
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1827 // 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
1828 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1829 chunk->set_prev(NULL);
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1830 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1831 // 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
1832 // work.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1833 chunk->set_is_free(false);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
1834 #endif
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1835 chunk->container()->inc_container_count();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1836
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1837 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1838 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1839 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1840
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1841 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1842 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
1843 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1844
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1845 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1846 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1847 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1848 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1849 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1850
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1851 assert((word_size <= chunk->word_size()) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1852 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1853 "Non-humongous variable sized chunk");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1854 if (TraceMetadataChunkAllocation) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1855 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1856 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1857 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
1858 list_count = list->count();
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1859 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1860 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1861 }
12240
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1862 gclog_or_tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1863 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1864 this, chunk, chunk->word_size(), list_count);
8c5e6482cbfc 8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
stefank
parents: 12239
diff changeset
1865 locked_print_free_chunks(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1866 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1867
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1868 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1869 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1870
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1871 void ChunkManager::print_on(outputStream* out) const {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1872 if (PrintFLSStatistics != 0) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
1873 const_cast<ChunkManager *>(this)->humongous_dictionary()->report_statistics();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1874 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1875 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1876
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1877 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1878
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1879 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
1880 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1881 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1882 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1883 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1884 *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
1885 *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
1886 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1887 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1888 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1889 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1890 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1891 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1892 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1893 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1894 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1895 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1896 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1897 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1898 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1899 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1900 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1901 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1902 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1903 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1904 }
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1905 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
1906 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
1907 " class " SIZE_FORMAT,
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1908 *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
1909 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1910
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1911 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
1912 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1913 size_t free = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1914 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
1915 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1916 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1917 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1918 chunk = chunk->next();
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 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1922 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1923
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1924 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
1925 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1926 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1927 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
1928 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1929 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1930
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1931 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1932 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1933
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1934 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
1935 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1936 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1937 // 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
1938 // current chunk from which allocations are still being done.
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
1939 while (chunk != NULL) {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
1940 if (chunk != current_chunk()) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1941 result += chunk->free_word_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1942 }
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
1943 chunk = chunk->next();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1944 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1945 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1946 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1947
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1948 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
1949 // 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
1950 // 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
1951 // 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
1952 // 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
1953 // 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
1954 // 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
1955 // 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
1956 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1957 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1958 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1959 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1960 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
1961 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1962 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
1963 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1964 while (chunk != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1965 sum += chunk->capacity_word_size();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1966 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1967 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1968 }
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
1969 return sum;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1970 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1971 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1972
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1973 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1974 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1975 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1976 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1977 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1978
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1979 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1980 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1981
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1982 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
1983 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1984 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1985 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1986 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1987 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1988 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1989 return count;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1992
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1993 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
1994 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1995 size_t used = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1996 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
1997 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1998 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1999 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2000 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2001 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2002 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2003 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2004 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2005
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2006 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
2007
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2008 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
2009 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2010 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2011 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2012 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2013 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2014 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2015 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2016 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2017 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2018 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2019
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2020 chunk_manager()->locked_print_free_chunks(st);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2021 chunk_manager()->locked_print_sum_free_chunks(st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2022 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2023
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2024 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
2025
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2026 // 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
2027 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2028 // 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
2029 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2030 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2031 if (chunks_in_use(MediumIndex) == NULL &&
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2032 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
2033 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
2034 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
2035 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2036 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2037 } else {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2038 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2039 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2040
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2041 // 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
2042 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2043 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2044 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2045 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2046 HumongousChunkGranularity);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2047 chunk_word_size =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2048 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
2049
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2050 assert(!SpaceManager::is_humongous(word_size) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2051 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2052 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
2053 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2054 word_size, chunk_word_size));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2055 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2056 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2057 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2058 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
2059 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
2060 chunk_word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2061 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
2062 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2063 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2064 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2065 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2066
12839
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2067 void SpaceManager::track_metaspace_memory_usage() {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2068 if (is_init_completed()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2069 if (is_class()) {
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2070 MemoryService::track_compressed_class_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2071 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2072 MemoryService::track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2073 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2074 }
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2075
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2076 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
2077 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2078 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2079 assert(current_chunk() == NULL ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2080 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2081 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2082 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
2083
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2084 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2085 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2086 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2087 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2088 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2089 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2090 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2091 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
2092 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2093 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2094 word_size, words_used, words_left);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2095 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2096
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2097 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2098 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
2099 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
2100
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2101 if (next != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2102 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2103 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2104
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2105 MetaWord* mem = NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2106
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2107 // 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
2108 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2109 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2110 // 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
2111 add_chunk(next, false);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2112 mem = next->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2113 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2114
12839
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2115 // Track metaspace memory usage statistic.
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2116 track_metaspace_memory_usage();
a6414751d537 8025996: Track metaspace usage when metaspace is expanded
stefank
parents: 12838
diff changeset
2117
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2118 return mem;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2119 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2120
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2121 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2122
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2123 for (ChunkIndex i = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2124 i < NumberOfInUseLists ;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2125 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2126 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
2127 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2128 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
2129 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2130 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
2131 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2132 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2133 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2134 sum_waste_in_chunks_in_use(HumongousIndex));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2135 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2136 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2137 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2138 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2139 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2140 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2141
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2142 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2143 Mutex* lock) :
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2144 _mdtype(mdtype),
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2145 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2146 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2147 _allocated_chunks_count(0),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2148 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2149 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2150 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2151 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2152
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2153 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
2154 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2155 // 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
2156 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2157 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2158 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2159 // Global total of capacity in allocated Metachunks
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2160 MetaspaceAux::inc_capacity(mdtype(), words);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2161 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2162 // 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
2163 // 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
2164 // 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
2165 // Metachunk).
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2166 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2167 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2168
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2169 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
2170 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2171 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2172 // Add to the global total
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2173 MetaspaceAux::inc_used(mdtype(), words);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2174 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2175
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2176 void SpaceManager::dec_total_from_size_metrics() {
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2177 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2178 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
2179 // Also deduct the overhead per Metachunk
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2180 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
2181 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2182
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2183 void SpaceManager::initialize() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2184 Metadebug::init_allocation_fail_alot_count();
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2185 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
2186 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2187 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2188 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2189 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2190 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2191 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2192 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2193
10101
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2194 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2195 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2196 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2197 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2198 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2199 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
2200 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2201 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2202
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2203 // 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
2204 // 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
2205 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2206 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2207 while (cur != NULL) {
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2208 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2209 cur->container()->dec_container_count();
10101
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2210 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2211 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2212 Metachunk* next = cur->next();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2213 cur->set_is_free(true);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2214 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2215 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2216 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2217 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
jmasa
parents: 8813
diff changeset
2218
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2219 SpaceManager::~SpaceManager() {
8784
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
2220 // 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
2221 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
2222 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
2223 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2224 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
2225
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2226 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2227 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2228
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2229 chunk_manager()->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2230
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2231 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2232
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2233 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2234 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2235 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2236 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2237
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2238 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2239 // 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
2240
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2241 // 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
2242 // below.
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2243 chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2244 sum_count_in_chunks_in_use());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2245
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2246 // 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
2247 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2248
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2249 // 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
2250 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2251
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2252 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
2253 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2254 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
2255 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2256 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2257 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2258 Metachunk* chunks = chunks_in_use(i);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2259 chunk_manager()->return_chunks(i, chunks);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2260 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2261 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2262 gclog_or_tty->print_cr("updated freelist count %d %s",
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2263 chunk_manager()->free_chunks(i)->count(),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2264 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2265 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2266 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
2267 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2268
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2269 // 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
2270 // 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
2271 // 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
2272
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2273 // Humongous chunks
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2274 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2275 gclog_or_tty->print_cr("returned %d %s humongous chunks to dictionary",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2276 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2277 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2278 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2279 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2280 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2281 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2282
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2283 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2284 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2285 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2286 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2287 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2288 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
2289 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2290 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2291 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2292 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2293 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2294 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2295 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
2296 " granularity %d",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2297 humongous_chunks->word_size(), HumongousChunkGranularity));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2298 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
2299 humongous_chunks->container()->dec_container_count();
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2300 chunk_manager()->humongous_dictionary()->return_chunk(humongous_chunks);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2301 humongous_chunks = next_humongous_chunks;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2302 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2303 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2304 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2305 gclog_or_tty->print_cr("updated dictionary count %d %s",
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2306 chunk_manager()->humongous_dictionary()->total_count(),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2307 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2308 }
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2309 chunk_manager()->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2311
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2312 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
2313 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2314 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2315 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2316 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2317 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2318 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2319 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2320 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2321 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2322 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2323 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2324 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2325 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2326
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2327 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2328 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2329 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2330 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2331 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2332 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2333 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2334 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2335 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2336 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2337 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2338 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2339 default:
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2340 assert(size > MediumChunk || size > ClassMediumChunk,
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2341 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2342 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2343 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2344 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2345
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2346 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
2347 assert_lock_strong(_lock);
11966
83ca9dc4564d 8019845: Memory leak during class redefinition
fparain
parents: 11065
diff changeset
2348 size_t raw_word_size = get_raw_word_size(word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2349 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
11966
83ca9dc4564d 8019845: Memory leak during class redefinition
fparain
parents: 11065
diff changeset
2350 assert(raw_word_size >= min_size,
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2351 err_msg("Should not deallocate dark matter " SIZE_FORMAT "<" SIZE_FORMAT, word_size, min_size));
11966
83ca9dc4564d 8019845: Memory leak during class redefinition
fparain
parents: 11065
diff changeset
2352 block_freelists()->return_block(p, raw_word_size);
6725
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2355 // 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
2356 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
2357
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2358 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2359 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
2360
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2361 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2362
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2363 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2364 // chunk for that list.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2365 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
2366
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2367 if (index != HumongousIndex) {
12231
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2368 retire_current_chunk();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2369 set_current_chunk(new_chunk);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2370 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
2371 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2372 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2373 // 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
2374 // 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
2375 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2376 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2377 // 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
2378 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2379 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2380 // 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
2381 // 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
2382 // 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
2383 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2384 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2385 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2386
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2387 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
2388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2389
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2390 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2391 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2392
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2393 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2394 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2395 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2396 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2397 new_chunk->print_on(gclog_or_tty);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2398 chunk_manager()->locked_print_free_chunks(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2400 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2401
12231
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2402 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2403 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2404 size_t remaining_words = current_chunk()->free_word_size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2405 if (remaining_words >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2406 block_freelists()->return_block(current_chunk()->allocate(remaining_words), remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2407 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2408 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2409 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2410 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk
mgerdin
parents: 12226
diff changeset
2411
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2412 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
2413 size_t grow_chunks_by_words) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2414 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2415 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2416
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2417 if (next == NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2418 next = vs_list()->get_new_chunk(word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2419 grow_chunks_by_words,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2420 medium_chunk_bunch());
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2421 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2422
12239
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2423 if (TraceMetadataHumongousAllocation && next != NULL &&
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2424 SpaceManager::is_humongous(next->word_size())) {
12239
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2425 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2426 PTR_FORMAT, next->word_size());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2427 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2428
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2429 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2430 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2431
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2432 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2433 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2434
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
2435 size_t raw_word_size = get_raw_word_size(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2436 BlockFreelist* fl = block_freelists();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2437 MetaWord* p = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2438 // 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
2439 // 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
2440 // 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
2441 // 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
2442 // for allocations. Do some profiling. JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2443 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2444 p = fl->get_block(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2445 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2446 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2447 p = allocate_work(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2449 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2450
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2451 return p;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2452 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2453
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2454 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2455 // This methods does not know about blocks (Metablocks)
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2456 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2457 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2458 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2459 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2460 return NULL;
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 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2463 // Is there space in the current chunk?
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2464 MetaWord* result = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2465
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2466 // 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
2467 // 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
2468 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2469 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2470 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
2471 inc_used_metrics(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2472 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
2473 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2474
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2475 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2476 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2477 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2478
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2479 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2480 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2481 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2482
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2483 if (result != NULL) {
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2484 inc_used_metrics(word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2485 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2486 "Head of the list is being allocated");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2487 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2488
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2489 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2490 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2491
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2492 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2493 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2494 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2495 // being in the dictionary alters a chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2496 if (block_freelists()->total_size() == 0) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2497 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
2498 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2499 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2500 curr->verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2501 verify_chunk_size(curr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2502 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2503 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2504 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2505 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2506 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2507
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2508 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2509 assert(is_humongous(chunk->word_size()) ||
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2510 chunk->word_size() == medium_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2511 chunk->word_size() == small_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2512 chunk->word_size() == specialized_chunk_size(),
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2513 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2514 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2515 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2516
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2517 #ifdef ASSERT
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2518 void SpaceManager::verify_allocated_blocks_words() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2519 // 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
2520 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
2521 "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
2522 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
2523 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
2524 " vs " SIZE_FORMAT,
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2525 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
2526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2527
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2528 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2529
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2530 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2531 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2532 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2533 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2534 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2535 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2536
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2537 // 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
2538 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2539 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2540 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2541 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2542 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2543 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2544 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2545 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2546 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2547 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2548 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2549 waste += curr->free_word_size() + curr->overhead();;
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
12239
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2553 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2554 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2555 }
8227700da288 8024751: Fix bugs in TraceMetadata
stefank
parents: 12237
diff changeset
2556
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2557 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
2558 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2559 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2560
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2561 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
2562 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2563 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
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
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2566 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2567 void SpaceManager::mangle_freed_chunks() {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2568 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2569 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2570 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2571 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2572 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2573 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2574 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2575 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2576 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2577 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2578 #endif // PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2579
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2580 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2581
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2582
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2583 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2584 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
2585
12063
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2586 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2587 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2588 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2589 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2590
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2591 size_t MetaspaceAux::free_bytes() {
12063
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space
ehelin
parents: 12056
diff changeset
2592 return free_bytes(Metaspace::ClassType) + free_bytes(Metaspace::NonClassType);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2593 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2594
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2595 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
2596 assert_lock_strong(SpaceManager::expand_lock());
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2597 assert(words <= allocated_capacity_words(mdtype),
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2598 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
2599 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2600 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2601 _allocated_capacity_words[mdtype] -= words;
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2602 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2603
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2604 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
2605 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2606 // Needs to be atomic
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2607 _allocated_capacity_words[mdtype] += words;
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2608 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2609
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2610 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
2611 assert(words <= allocated_used_words(mdtype),
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2612 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
2613 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2614 words, mdtype, allocated_used_words(mdtype)));
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2615 // 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
2616 // 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
2617 // 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
2618 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2619 jlong minus_words = (jlong) - (jlong) words;
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2620 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
2621 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2622
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2623 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
2624 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2625 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2626 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2627 // threads so must be done atomically.
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2628 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
2629 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2630
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2631 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
2632 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2633 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2634 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2635 Metaspace* msp = iter.get_next();
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2636 // Sum allocated_blocks_words for each metaspace
6730
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2637 if (msp != NULL) {
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2638 used += msp->used_words_slow(mdtype);
6730
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2639 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2640 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2641 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2642 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2643
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2644 size_t MetaspaceAux::free_bytes_slow(Metaspace::MetadataType mdtype) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2645 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2646 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2647 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2648 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2649 if (msp != NULL) {
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2650 free += msp->free_words_slow(mdtype);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2651 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2652 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2653 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2654 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2655
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2656 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2657 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2658 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2659 }
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2660 // 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
2661 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2662 size_t capacity = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2663 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2664 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2665 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2666 if (msp != NULL) {
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2667 capacity += msp->capacity_words_slow(mdtype);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2668 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2669 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2670 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2672
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2673 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2674 #ifdef PRODUCT
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2675 // Use allocated_capacity_bytes() in PRODUCT instead of this function.
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2676 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2677 #endif
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2678 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2679 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2680 assert(allocated_capacity_bytes() == class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2681 err_msg("bad accounting: allocated_capacity_bytes() " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2682 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2683 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2684 allocated_capacity_bytes(), class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2685 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2686
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2687 return class_capacity + non_class_capacity;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2688 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2689
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2690 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2691 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2692 return list == NULL ? 0 : list->reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2693 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2694
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2695 size_t MetaspaceAux::committed_bytes(Metaspace::MetadataType mdtype) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2696 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
2697 return list == NULL ? 0 : list->committed_bytes();
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2698 }
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2699
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2700 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2701
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2702 size_t MetaspaceAux::free_chunks_total_words(Metaspace::MetadataType mdtype) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2703 ChunkManager* chunk_manager = Metaspace::get_chunk_manager(mdtype);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2704 if (chunk_manager == NULL) {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2705 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2706 }
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2707 chunk_manager->slow_verify();
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2708 return chunk_manager->free_chunks_total_words();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2709 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2710
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2711 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2712 return free_chunks_total_words(mdtype) * BytesPerWord;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2713 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2714
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2715 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2716 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2717 free_chunks_total_words(Metaspace::NonClassType);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2718 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2719
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2720 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2721 return free_chunks_total_words() * BytesPerWord;
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2722 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2723
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2724 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
2725 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2726 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2727 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2728 "->" SIZE_FORMAT
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2729 "(" SIZE_FORMAT ")",
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2730 prev_metadata_used,
11037
df7e1c0e3dc1 8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity
jmasa
parents: 10376
diff changeset
2731 allocated_used_bytes(),
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2732 reserved_bytes());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2733 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2734 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2735 "->" SIZE_FORMAT "K"
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2736 "(" SIZE_FORMAT "K)",
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2737 prev_metadata_used/K,
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2738 allocated_used_bytes()/K,
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2739 reserved_bytes()/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2740 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2741
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2742 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2743 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2744
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2745 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2746 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2747 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2748
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2749 out->print_cr(" Metaspace "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2750 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2751 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2752 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2753 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2754 allocated_used_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2755 allocated_capacity_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2756 committed_bytes()/K,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2757 reserved_bytes()/K);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2758
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2759 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2760 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2761 out->print_cr(" class space "
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2762 "used " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2763 "capacity " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2764 "committed " SIZE_FORMAT "K, "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2765 "reserved " SIZE_FORMAT "K",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2766 allocated_used_bytes(ct)/K,
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2767 allocated_capacity_bytes(ct)/K,
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2768 committed_bytes(ct)/K,
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2769 reserved_bytes(ct)/K);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2770 }
6725
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2773 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2774 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2775 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2776 size_t free_chunks_capacity_bytes = free_chunks_total_bytes(mdtype);
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2777 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
2778 size_t used_bytes = used_bytes_slow(mdtype);
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
2779 size_t free_bytes = free_bytes_slow(mdtype);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2780 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2781 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2782 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
2783 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2784 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2785 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2786 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2787 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2788 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2789 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2790 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
2791 // 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
2792 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
2793 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2794
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2795 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2796 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2797 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2798 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2799 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_humongous_count = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2800 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2801 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2802 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2803 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2804 cls_specialized_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2805 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2806 cls_small_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2807 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2808 cls_medium_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2809 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2810 cls_humongous_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2811 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2812 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2813 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2814 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2815 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2816 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2817 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2818 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2819 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2820 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2821
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2822 // Print total fragmentation for data and class metaspaces separately
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2823 void MetaspaceAux::print_waste(outputStream* out) {
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2824 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2825 size_t specialized_count = 0, small_count = 0, medium_count = 0, humongous_count = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2826
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2827 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2828 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2829 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2830 if (msp != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2831 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
2832 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
2833 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
2834 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
2835 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
2836 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2837 humongous_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2838 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2839 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2840 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
2841 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
2842 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2843 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2844 "large count " SIZE_FORMAT,
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2845 specialized_count, specialized_waste, small_count,
11064
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
coleenp
parents: 10376
diff changeset
2846 small_waste, medium_count, medium_waste, humongous_count);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2847 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2848 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2849 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2850 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2851
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2852 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2853 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2854 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2855 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2856 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2857 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2858 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2859
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2860 void MetaspaceAux::verify_free_chunks() {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2861 Metaspace::chunk_manager_metadata()->verify();
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2862 if (Metaspace::using_class_space()) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2863 Metaspace::chunk_manager_class()->verify();
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2864 }
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2865 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2866
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2867 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2868 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2869 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
2870 // 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
2871 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
2872 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
2873 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
2874 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2875 running_sum_capacity_bytes, capacity_in_use_bytes));
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2876 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2877 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2878 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2879 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
2880 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2881 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2882 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2883 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
2884 }
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2885 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2886 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2887
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2888 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2889 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2890 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
2891 // 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
2892 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
2893 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
2894 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2895 " used_bytes_slow()" SIZE_FORMAT,
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2896 allocated_used_bytes(), used_in_use_bytes));
10330
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2897 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2898 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2899 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2900 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
2901 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2902 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2903 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType
jmasa
parents: 10191
diff changeset
2904 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
2905 }
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2906 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2907 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2908
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2909 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2910 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2911 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2912 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2913
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
2914
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2915 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2916
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2917 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
2918 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
2919
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2920 size_t Metaspace::_commit_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2921 size_t Metaspace::_reserve_alignment = 0;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2922
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2923 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2924 initialize(lock, type);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2926
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2927 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2928 delete _vsm;
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2929 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2930 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2931 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2932 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2933
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2934 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2935 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2936
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2937 ChunkManager* Metaspace::_chunk_manager_metadata = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2938 ChunkManager* Metaspace::_chunk_manager_class = NULL;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
2939
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2940 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2941
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2942 #ifdef _LP64
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2943 void Metaspace::set_narrow_klass_base_and_shift(address metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2944 // Figure out the narrow_klass_base and the narrow_klass_shift. The
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2945 // narrow_klass_base is the lower of the metaspace base and the cds base
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2946 // (if cds is enabled). The narrow_klass_shift depends on the distance
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2947 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2948 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2949 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2950 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2951 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2952 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2953 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2954 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2955 higher_address = metaspace_base + class_metaspace_size();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2956 lower_base = metaspace_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2957 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2958 Universe::set_narrow_klass_base(lower_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2959 if ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2960 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2961 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2962 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2963 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2964 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2965 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2966
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2967 // Return TRUE if the specified metaspace_base and cds_base are close enough
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2968 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2969 bool Metaspace::can_use_cds_with_metaspace_addr(char* metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2970 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
2971 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2972 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2973 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2974 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2975 return ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2976 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2977
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2978 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2979 void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2980 assert(using_class_space(), "called improperly");
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
2981 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2982 assert(class_metaspace_size() < KlassEncodingMetaspaceMax,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2983 "Metaspace size is too big");
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2984 assert_is_ptr_aligned(requested_addr, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2985 assert_is_ptr_aligned(cds_base, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2986 assert_is_size_aligned(class_metaspace_size(), _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2987
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2988 // Don't use large pages for the class space.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2989 bool large_pages = false;
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2990
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2991 ReservedSpace metaspace_rs = ReservedSpace(class_metaspace_size(),
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2992 _reserve_alignment,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2993 large_pages,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2994 requested_addr, 0);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2995 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2996 if (UseSharedSpaces) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2997 size_t increment = align_size_up(1*G, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
2998
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
2999 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3000 // by 1GB each time, until we reach an address that will no longer allow
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3001 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3002 char *addr = requested_addr;
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3003 while (!metaspace_rs.is_reserved() && (addr + increment > addr) &&
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3004 can_use_cds_with_metaspace_addr(addr + increment, cds_base)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3005 addr = addr + increment;
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3006 metaspace_rs = ReservedSpace(class_metaspace_size(),
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3007 _reserve_alignment, large_pages, addr, 0);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3008 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3009 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3010
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3011 // If no successful allocation then try to allocate the space anywhere. If
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3012 // that fails then OOM doom. At this point we cannot try allocating the
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3013 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3014 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3015 // So, UseCompressedClassPointers cannot be turned off at this point.
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3016 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3017 metaspace_rs = ReservedSpace(class_metaspace_size(),
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3018 _reserve_alignment, large_pages);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3019 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3020 vm_exit_during_initialization(err_msg("Could not allocate metaspace: %d bytes",
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3021 class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3022 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3023 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3024 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3025
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3026 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3027 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3028
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3029 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3030 if (UseSharedSpaces && !can_use_cds_with_metaspace_addr(metaspace_rs.base(), cds_base)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3031 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3032 "Could not allocate metaspace at a compatible address");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3033 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3034
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3035 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3036 UseSharedSpaces ? (address)cds_base : 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3037
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3038 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3039
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3040 if (PrintCompressedOopsMode || (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3041 gclog_or_tty->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3042 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3043 gclog_or_tty->print_cr("Metaspace Size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3044 class_metaspace_size(), metaspace_rs.base(), requested_addr);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3045 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3046 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3047
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3048 // For UseCompressedClassPointers the class space is reserved above the top of
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3049 // the Java heap. The argument passed in is at the base of the compressed space.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3050 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3051 // The reserved space size may be bigger because of alignment, esp with UseLargePages
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3052 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3053 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3054 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3055 _class_space_list = new VirtualSpaceList(rs);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3056 _chunk_manager_class = new ChunkManager(SpecializedChunk, ClassSmallChunk, ClassMediumChunk);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3057
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3058 if (!_class_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3059 vm_exit_during_initialization("Failed to setup compressed class space virtual space list.");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3060 }
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3061 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3062
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3063 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3064
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3065 // Align down. If the aligning result in 0, return 'alignment'.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3066 static size_t restricted_align_down(size_t size, size_t alignment) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3067 return MAX2(alignment, align_size_down_(size, alignment));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3068 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3069
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3070 void Metaspace::ergo_initialize() {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3071 if (DumpSharedSpaces) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3072 // Using large pages when dumping the shared archive is currently not implemented.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3073 FLAG_SET_ERGO(bool, UseLargePagesInMetaspace, false);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3074 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3075
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3076 size_t page_size = os::vm_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3077 if (UseLargePages && UseLargePagesInMetaspace) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3078 page_size = os::large_page_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3079 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3080
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3081 _commit_alignment = page_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3082 _reserve_alignment = MAX2(page_size, (size_t)os::vm_allocation_granularity());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3083
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3084 // Do not use FLAG_SET_ERGO to update MaxMetaspaceSize, since this will
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3085 // override if MaxMetaspaceSize was set on the command line or not.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3086 // This information is needed later to conform to the specification of the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3087 // java.lang.management.MemoryUsage API.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3088 //
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3089 // Ideally, we would be able to set the default value of MaxMetaspaceSize in
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3090 // globals.hpp to the aligned value, but this is not possible, since the
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3091 // alignment depends on other flags being parsed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3092 MaxMetaspaceSize = restricted_align_down(MaxMetaspaceSize, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3093
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3094 if (MetaspaceSize > MaxMetaspaceSize) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3095 MetaspaceSize = MaxMetaspaceSize;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3096 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3097
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3098 MetaspaceSize = restricted_align_down(MetaspaceSize, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3099
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3100 assert(MetaspaceSize <= MaxMetaspaceSize, "MetaspaceSize should be limited by MaxMetaspaceSize");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3101
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3102 if (MetaspaceSize < 256*K) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3103 vm_exit_during_initialization("Too small initial Metaspace size");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3104 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3105
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3106 MinMetaspaceExpansion = restricted_align_down(MinMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3107 MaxMetaspaceExpansion = restricted_align_down(MaxMetaspaceExpansion, _commit_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3108
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3109 CompressedClassSpaceSize = restricted_align_down(CompressedClassSpaceSize, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3110 set_class_metaspace_size(CompressedClassSpaceSize);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3111 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3112
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3113 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3114 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3115 int max_alignment = os::vm_page_size();
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3116 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3117
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3118 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3119
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3120 if (DumpSharedSpaces) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3121 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3122 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3123 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3124 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3125
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3126 // 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
3127 // 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
3128 // remainder is the misc code and data chunks.
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3129 cds_total = FileMapInfo::shared_spaces_size();
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3130 cds_total = align_size_up(cds_total, _reserve_alignment);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3131 _space_list = new VirtualSpaceList(cds_total/wordSize);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3132 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3133
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3134 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3135 vm_exit_during_initialization("Unable to dump shared archive.", NULL);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3136 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3137
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3138 #ifdef _LP64
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3139 if (cds_total + class_metaspace_size() > (uint64_t)max_juint) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3140 vm_exit_during_initialization("Unable to dump shared archive.",
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3141 err_msg("Size of archive (" SIZE_FORMAT ") + compressed class space ("
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3142 SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3143 "klass limit: " SIZE_FORMAT, cds_total, class_metaspace_size(),
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3144 cds_total + class_metaspace_size(), (size_t)max_juint));
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3145 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3146
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3147 // Set the compressed klass pointer base so that decoding of these pointers works
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3148 // properly when creating the shared archive.
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3149 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3150 "UseCompressedOops and UseCompressedClassPointers must be set");
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3151 Universe::set_narrow_klass_base((address)_space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3152 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3153 gclog_or_tty->print_cr("Setting_narrow_klass_base to Address: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3154 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3155 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3156
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3157 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3158 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3159
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3160 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3161 // 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
3162 // 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
3163 // the addresses don't conflict)
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3164 address cds_address = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3165 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3166 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3167 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3168
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3169 // 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
3170 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3171 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3172 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3173 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3174 FileMapInfo::set_current_info(mapinfo);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3175 cds_total = FileMapInfo::shared_spaces_size();
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3176 cds_address = (address)mapinfo->region_base(0);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3177 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3178 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3179 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3180 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3181 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3182
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3183 #ifdef _LP64
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3184 // If UseCompressedClassPointers is set then allocate the metaspace area
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3185 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3186 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3187 if (UseSharedSpaces) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3188 char* cds_end = (char*)(cds_address + cds_total);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3189 cds_end = (char *)align_ptr_up(cds_end, _reserve_alignment);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3190 allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3191 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3192 allocate_metaspace_compressed_klass_ptrs((char *)CompressedKlassPointersBase, 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3193 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3194 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3195 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3196
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3197 // Initialize these before initializing the VirtualSpaceList
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3198 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3199 _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
3200 // 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
3201 // 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
3202 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3203 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3204 (CompressedClassSpaceSize/BytesPerWord)*2);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3205 _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
3206 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3207 // of the boot class loader size.
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3208 size_t word_size = VIRTUALSPACEMULTIPLIER * _first_chunk_word_size;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3209 word_size = align_size_up(word_size, Metaspace::reserve_alignment_words());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3210
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3211 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3212 _space_list = new VirtualSpaceList(word_size);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3213 _chunk_manager_metadata = new ChunkManager(SpecializedChunk, SmallChunk, MediumChunk);
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3214
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3215 if (!_space_list->initialization_succeeded()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3216 vm_exit_during_initialization("Unable to setup metadata virtual space list.", NULL);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3217 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3218 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3219
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3220 MetaspaceGC::initialize();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3221 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3222
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3223 Metachunk* Metaspace::get_initialization_chunk(MetadataType mdtype,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3224 size_t chunk_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3225 size_t chunk_bunch) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3226 // Get a chunk from the chunk freelist
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3227 Metachunk* chunk = get_chunk_manager(mdtype)->chunk_freelist_allocate(chunk_word_size);
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3228 if (chunk != NULL) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3229 return chunk;
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3230 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3231
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3232 return get_space_list(mdtype)->get_new_chunk(chunk_word_size, chunk_word_size, chunk_bunch);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3233 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3234
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3235 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3236
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3237 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3238 "Metadata VirtualSpaceList has not been initialized");
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3239 assert(chunk_manager_metadata() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3240 "Metadata ChunkManager has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3241
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3242 _vsm = new SpaceManager(NonClassType, lock);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3243 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3244 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3245 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3246 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3247 size_t class_word_size;
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3248 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3249
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3250 if (using_class_space()) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3251 assert(class_space_list() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3252 "Class VirtualSpaceList has not been initialized");
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3253 assert(chunk_manager_class() != NULL,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3254 "Class ChunkManager has not been initialized");
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3255
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3256 // Allocate SpaceManager for classes.
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3257 _class_vsm = new SpaceManager(ClassType, lock);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3258 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3259 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3260 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3261 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3262
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3263 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
3264
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3265 // Allocate chunk for metadata objects
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3266 Metachunk* new_chunk = get_initialization_chunk(NonClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3267 word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3268 vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3269 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
3270 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3271 // 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
3272 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3273 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3274
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3275 // Allocate chunk for class metadata objects
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3276 if (using_class_space()) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3277 Metachunk* class_chunk = get_initialization_chunk(ClassType,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3278 class_word_size,
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3279 class_vsm()->medium_chunk_bunch());
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3280 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3281 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3282 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3283 }
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3284
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3285 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3286 _alloc_record_tail = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3287 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3288
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3289 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
3290 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3291 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
3292 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
3293
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3294 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3295 // DumpSharedSpaces doesn't use class metadata area (yet)
12226
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents: 12110
diff changeset
3296 // Also, don't use class_vsm() unless UseCompressedClassPointers is true.
12340
bc918fd1e584 8025279: metaspace/flags/maxMetaspaceSize throws OOM: out of Compressed Klass space
mgerdin
parents: 12306
diff changeset
3297 if (is_class_space_allocation(mdtype)) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3298 return class_vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3299 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3300 return vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3302 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3303
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3304 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3305 size_t delta_bytes = MetaspaceGC::delta_capacity_until_GC(word_size * BytesPerWord);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3306 assert(delta_bytes > 0, "Must be");
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3307
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3308 size_t after_inc = MetaspaceGC::inc_capacity_until_GC(delta_bytes);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3309 size_t before_inc = after_inc - delta_bytes;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3310
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3311 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3312 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3313 " to " SIZE_FORMAT, before_inc, after_inc);
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3314 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3315
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3316 return allocate(word_size, mdtype);
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3317 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
3318
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3319 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3320 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3321 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3322 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
3323 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3324 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3325
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3326 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3327 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3328 return using_class_space() ? class_vsm()->sum_used_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3329 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3330 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3331 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3332 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3333
12235
d6c266999345 8023476: Metaspace capacity > reserved
ehelin
parents: 12231
diff changeset
3334 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3335 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3336 return using_class_space() ? class_vsm()->sum_free_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3337 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3338 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3339 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3340 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3341
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3342 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3343 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3344 // 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
3345 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3346 // is already counted in some chunk.
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3347 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3348 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3349 return using_class_space() ? class_vsm()->sum_capacity_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3350 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3351 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3352 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3353 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3354
10183
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3355 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
3356 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3357 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3358
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3359 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
3360 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3361 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
jmasa
parents: 10175
diff changeset
3362
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3363 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
3364 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3365 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
3366 // 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
3367 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3368 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3369 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3370 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3371 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3372 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3373 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3374 }
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3375 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3376 class_vsm()->deallocate(ptr, word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3377 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3378 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3379 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3380 } 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
3381 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
3382
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3383 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3384 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3385 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3386 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3387 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3388 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3389 }
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3390 if (is_class && using_class_space()) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3391 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3392 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3393 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3394 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3395 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3396 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3397
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3398
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3399 Metablock* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3400 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3401 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3402 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3403 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3404 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3405
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3406 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
3407 "ClassLoaderData::the_null_class_loader_data() should have been used.");
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3408
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3409 // 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
3410 // 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
3411 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3412 if (DumpSharedSpaces) {
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3413 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3414 Metaspace* space = read_only ? loader_data->ro_metaspace() : loader_data->rw_metaspace();
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3415 MetaWord* result = space->allocate(word_size, NonClassType);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3416 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3417 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3418 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3419 space->record_allocation(result, type, space->vsm()->get_raw_word_size(word_size));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3420 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
3421 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3423
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3424 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3425
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3426 // Try to allocate metadata.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3427 MetaWord* result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3428
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3429 if (result == NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3430 // Allocation failed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3431 if (is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3432 // Only start a GC if the bootstrapping has completed.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3433
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3434 // Try to clean out some memory and retry.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3435 result = Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3436 loader_data, word_size, mdtype);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3437 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3438 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3439
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3440 if (result == NULL) {
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3441 report_metadata_oome(loader_data, word_size, mdtype, THREAD);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3442 // Will not reach here.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3443 return NULL;
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3444 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3445
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3446 return Metablock::initialize(result, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3447 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3448
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3449 void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_size, MetadataType mdtype, TRAPS) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3450 // If result is still null, we are out of memory.
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3451 if (Verbose && TraceMetadataChunkAllocation) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3452 gclog_or_tty->print_cr("Metaspace allocation failed for size "
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3453 SIZE_FORMAT, word_size);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3454 if (loader_data->metaspace_or_null() != NULL) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3455 loader_data->dump(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3456 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3457 MetaspaceAux::dump(gclog_or_tty);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3458 }
12838
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3459
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3460 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3461 const char* space_string = is_class_space_allocation(mdtype) ? "Compressed class space" :
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3462 "Metadata space";
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3463 report_java_out_of_memory(space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3464
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3465 if (JvmtiExport::should_post_resource_exhausted()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3466 JvmtiExport::post_resource_exhausted(
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3467 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3468 space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3469 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3470
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3471 if (!is_init_completed()) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3472 vm_exit_during_initialization("OutOfMemoryError", space_string);
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3473 }
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3474
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3475 if (is_class_space_allocation(mdtype)) {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3476 THROW_OOP(Universe::out_of_memory_error_class_metaspace());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3477 } else {
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3478 THROW_OOP(Universe::out_of_memory_error_metaspace());
85c1ca43713f 8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents: 12340
diff changeset
3479 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3480 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3481
10376
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3482 void Metaspace::record_allocation(void* ptr, MetaspaceObj::Type type, size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3483 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3484
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3485 AllocRecord *rec = new AllocRecord((address)ptr, type, (int)word_size * HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3486 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3487 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3488 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3489 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3490 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3491 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3492 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3493
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3494 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3495 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3496
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3497 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3498
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3499 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3500 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3501 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3502 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3503 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3504 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3505 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3506 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3507
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3508 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3509 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3510 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3511 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3512 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG
iklam
parents: 10330
diff changeset
3513
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3514 void Metaspace::purge(MetadataType mdtype) {
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3515 get_space_list(mdtype)->purge(get_chunk_manager(mdtype));
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3516 }
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3517
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3518 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3519 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3520 Mutex::_no_safepoint_check_flag);
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3521 purge(NonClassType);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3522 if (using_class_space()) {
12303
b960c9df4f11 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefank
parents: 12302
diff changeset
3523 purge(ClassType);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3524 }
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3525 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3526
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3527 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3528 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3529 if (Verbose) {
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3530 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3531 if (using_class_space()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3532 class_vsm()->print_on(out);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3533 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3534 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3535 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3536
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
3537 bool Metaspace::contains(const void * ptr) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3538 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3539 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3540 }
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
3541 // 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
3542 // 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
3543 // 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
3544 // 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
3545 // caller in MetaspaceObj::is_metadata() function.
10175
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes
jmasa
parents: 10101
diff changeset
3546 return space_list()->contains(ptr) ||
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3547 (using_class_space() && class_space_list()->contains(ptr));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3548 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3549
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3550 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3551 vsm()->verify();
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3552 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3553 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3554 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3555 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3556
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3557 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3558 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3559 vsm()->dump(out);
12056
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3560 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3561 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3562 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents: 11966
diff changeset
3563 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3564 }
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3565
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3566 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3567
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3568 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3569
12306
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3570 class TestMetaspaceAuxTest : AllStatic {
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3571 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3572 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3573 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3574
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3575 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3576
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3577 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3578 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3579
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3580 size_t reserved_metadata = MetaspaceAux::reserved_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3581 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3582 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3583
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3584 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3585 size_t reserved_class = MetaspaceAux::reserved_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3586 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3587 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3588 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3589 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3590
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3591 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3592 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3593
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3594 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3595
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3596 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3597 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3598
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3599 size_t committed_metadata = MetaspaceAux::committed_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3600 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3601 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3602
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3603 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3604 size_t committed_class = MetaspaceAux::committed_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3605 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3606 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3607 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3608 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3609
12306
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3610 static void test_virtual_space_list_large_chunk() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3611 VirtualSpaceList* vs_list = new VirtualSpaceList(os::vm_allocation_granularity());
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3612 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3613 // A size larger than VirtualSpaceSize (256k) and add one page to make it _not_ be
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3614 // vm_allocation_granularity aligned on Windows.
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3615 size_t large_size = (size_t)(2*256*K + (os::vm_page_size()/BytesPerWord));
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3616 large_size += (os::vm_page_size()/BytesPerWord);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
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diff changeset
3617 vs_list->get_new_chunk(large_size, large_size, 0);
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3618 }
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
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diff changeset
3619
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3620 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3621 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3622 test_committed();
12306
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
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diff changeset
3623 test_virtual_space_list_large_chunk();
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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parents: 12235
diff changeset
3624 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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parents: 12235
diff changeset
3625 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3626
12306
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3627 void TestMetaspaceAux_test() {
03f493ce3a71 8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
brutisso
parents: 12303
diff changeset
3628 TestMetaspaceAuxTest::test();
12236
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
stefank
parents: 12235
diff changeset
3629 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3630
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces
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diff changeset
3631 #endif