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annotate src/share/vm/memory/metaspace.cpp @ 8712:3efdfd6ddbf2

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8003553: NPG: metaspace objects should be zeroed in constructors Summary: Zero metadata in constructors, not in allocation (and some in constructors) Reviewed-by: jmasa, sspitsyn
author coleenp
date Fri, 08 Mar 2013 11:47:57 -0500
parents a83cd101fd62
children 15401203db6b 82f49e8e2c28
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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/binaryTreeDictionary.hpp"
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27 #include "memory/freeList.hpp"
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28 #include "memory/collectorPolicy.hpp"
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29 #include "memory/filemap.hpp"
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30 #include "memory/freeList.hpp"
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31 #include "memory/metablock.hpp"
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32 #include "memory/metachunk.hpp"
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33 #include "memory/metaspace.hpp"
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34 #include "memory/metaspaceShared.hpp"
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35 #include "memory/resourceArea.hpp"
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36 #include "memory/universe.hpp"
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37 #include "runtime/globals.hpp"
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38 #include "runtime/mutex.hpp"
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39 #include "runtime/orderAccess.hpp"
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40 #include "services/memTracker.hpp"
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41 #include "utilities/copy.hpp"
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42 #include "utilities/debug.hpp"
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43
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44 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
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45 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
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46 // Define this macro to enable slow integrity checking of
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47 // the free chunk lists
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48 const bool metaspace_slow_verify = false;
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49
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50
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51 // Parameters for stress mode testing
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52 const uint metadata_deallocate_a_lot_block = 10;
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53 const uint metadata_deallocate_a_lock_chunk = 3;
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54 size_t const allocation_from_dictionary_limit = 64 * K;
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55
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56 MetaWord* last_allocated = 0;
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57
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58 // Used in declarations in SpaceManager and ChunkManager
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59 enum ChunkIndex {
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60 ZeroIndex = 0,
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61 SpecializedIndex = ZeroIndex,
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62 SmallIndex = SpecializedIndex + 1,
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63 MediumIndex = SmallIndex + 1,
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64 HumongousIndex = MediumIndex + 1,
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65 NumberOfFreeLists = 3,
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66 NumberOfInUseLists = 4
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67 };
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68
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69 enum ChunkSizes { // in words.
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70 ClassSpecializedChunk = 128,
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71 SpecializedChunk = 128,
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72 ClassSmallChunk = 256,
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73 SmallChunk = 512,
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74 ClassMediumChunk = 1 * K,
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75 MediumChunk = 8 * K,
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76 HumongousChunkGranularity = 8
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77 };
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78
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79 static ChunkIndex next_chunk_index(ChunkIndex i) {
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80 assert(i < NumberOfInUseLists, "Out of bound");
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81 return (ChunkIndex) (i+1);
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82 }
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83
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84 // Originally _capacity_until_GC was set to MetaspaceSize here but
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85 // the default MetaspaceSize before argument processing was being
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86 // used which was not the desired value. See the code
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87 // in should_expand() to see how the initialization is handled
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88 // now.
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89 size_t MetaspaceGC::_capacity_until_GC = 0;
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90 bool MetaspaceGC::_expand_after_GC = false;
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91 uint MetaspaceGC::_shrink_factor = 0;
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92 bool MetaspaceGC::_should_concurrent_collect = false;
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93
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94 // Blocks of space for metadata are allocated out of Metachunks.
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95 //
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96 // Metachunk are allocated out of MetadataVirtualspaces and once
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97 // allocated there is no explicit link between a Metachunk and
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98 // the MetadataVirtualspaces from which it was allocated.
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99 //
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100 // Each SpaceManager maintains a
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101 // list of the chunks it is using and the current chunk. The current
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102 // chunk is the chunk from which allocations are done. Space freed in
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103 // a chunk is placed on the free list of blocks (BlockFreelist) and
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104 // reused from there.
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105
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106 // Pointer to list of Metachunks.
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107 class ChunkList VALUE_OBJ_CLASS_SPEC {
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108 // List of free chunks
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109 Metachunk* _head;
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110
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111 public:
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112 // Constructor
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113 ChunkList() : _head(NULL) {}
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114
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115 // Accessors
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116 Metachunk* head() { return _head; }
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117 void set_head(Metachunk* v) { _head = v; }
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118
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119 // Link at head of the list
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120 void add_at_head(Metachunk* head, Metachunk* tail);
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121 void add_at_head(Metachunk* head);
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122
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123 size_t sum_list_size();
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124 size_t sum_list_count();
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125 size_t sum_list_capacity();
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126 };
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127
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128 // Manages the global free lists of chunks.
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129 // Has three lists of free chunks, and a total size and
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130 // count that includes all three
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131
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132 class ChunkManager VALUE_OBJ_CLASS_SPEC {
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133
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134 // Free list of chunks of different sizes.
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135 // SmallChunk
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136 // MediumChunk
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137 // HumongousChunk
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138 ChunkList _free_chunks[NumberOfFreeLists];
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139
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140
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141 // HumongousChunk
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142 ChunkTreeDictionary _humongous_dictionary;
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143
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144 // ChunkManager in all lists of this type
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145 size_t _free_chunks_total;
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146 size_t _free_chunks_count;
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147
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148 void dec_free_chunks_total(size_t v) {
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149 assert(_free_chunks_count > 0 &&
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150 _free_chunks_total > 0,
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151 "About to go negative");
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152 Atomic::add_ptr(-1, &_free_chunks_count);
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153 jlong minus_v = (jlong) - (jlong) v;
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154 Atomic::add_ptr(minus_v, &_free_chunks_total);
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155 }
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156
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157 // Debug support
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158
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159 size_t sum_free_chunks();
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160 size_t sum_free_chunks_count();
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161
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162 void locked_verify_free_chunks_total();
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163 void slow_locked_verify_free_chunks_total() {
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164 if (metaspace_slow_verify) {
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165 locked_verify_free_chunks_total();
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166 }
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167 }
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168 void locked_verify_free_chunks_count();
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169 void slow_locked_verify_free_chunks_count() {
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170 if (metaspace_slow_verify) {
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171 locked_verify_free_chunks_count();
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172 }
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173 }
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174 void verify_free_chunks_count();
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175
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176 public:
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177
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178 ChunkManager() : _free_chunks_total(0), _free_chunks_count(0) {}
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179
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180 // add or delete (return) a chunk to the global freelist.
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181 Metachunk* chunk_freelist_allocate(size_t word_size);
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182 void chunk_freelist_deallocate(Metachunk* chunk);
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183
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184 // Map a size to a list index assuming that there are lists
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185 // for special, small, medium, and humongous chunks.
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186 static ChunkIndex list_index(size_t size);
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187
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188 // Total of the space in the free chunks list
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189 size_t free_chunks_total();
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190 size_t free_chunks_total_in_bytes();
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191
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192 // Number of chunks in the free chunks list
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193 size_t free_chunks_count();
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194
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195 void inc_free_chunks_total(size_t v, size_t count = 1) {
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196 Atomic::add_ptr(count, &_free_chunks_count);
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197 Atomic::add_ptr(v, &_free_chunks_total);
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198 }
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199 ChunkTreeDictionary* humongous_dictionary() {
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200 return &_humongous_dictionary;
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201 }
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202
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203 ChunkList* free_chunks(ChunkIndex index);
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204
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205 // Returns the list for the given chunk word size.
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206 ChunkList* find_free_chunks_list(size_t word_size);
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207
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208 // Add and remove from a list by size. Selects
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209 // list based on size of chunk.
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210 void free_chunks_put(Metachunk* chuck);
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211 Metachunk* free_chunks_get(size_t chunk_word_size);
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212
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213 // Debug support
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214 void verify();
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215 void slow_verify() {
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216 if (metaspace_slow_verify) {
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217 verify();
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218 }
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219 }
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220 void locked_verify();
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221 void slow_locked_verify() {
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222 if (metaspace_slow_verify) {
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223 locked_verify();
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224 }
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225 }
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226 void verify_free_chunks_total();
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227
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228 void locked_print_free_chunks(outputStream* st);
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229 void locked_print_sum_free_chunks(outputStream* st);
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230
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231 void print_on(outputStream* st);
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232 };
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233
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234
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235 // Used to manage the free list of Metablocks (a block corresponds
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236 // to the allocation of a quantum of metadata).
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237 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
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238 BlockTreeDictionary* _dictionary;
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239 static Metablock* initialize_free_chunk(MetaWord* p, size_t word_size);
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240
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241 // Accessors
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242 BlockTreeDictionary* dictionary() const { return _dictionary; }
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243
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244 public:
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245 BlockFreelist();
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246 ~BlockFreelist();
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247
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248 // Get and return a block to the free list
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249 MetaWord* get_block(size_t word_size);
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250 void return_block(MetaWord* p, size_t word_size);
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251
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252 size_t total_size() {
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253 if (dictionary() == NULL) {
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254 return 0;
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255 } else {
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256 return dictionary()->total_size();
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257 }
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258 }
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259
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260 void print_on(outputStream* st) const;
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261 };
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262
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263 class VirtualSpaceNode : public CHeapObj<mtClass> {
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264 friend class VirtualSpaceList;
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265
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266 // Link to next VirtualSpaceNode
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267 VirtualSpaceNode* _next;
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268
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269 // total in the VirtualSpace
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270 MemRegion _reserved;
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271 ReservedSpace _rs;
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272 VirtualSpace _virtual_space;
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273 MetaWord* _top;
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274
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275 // Convenience functions for logical bottom and end
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276 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
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277 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
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278
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279 // Convenience functions to access the _virtual_space
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280 char* low() const { return virtual_space()->low(); }
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281 char* high() const { return virtual_space()->high(); }
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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) {}
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287 ~VirtualSpaceNode();
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288
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289 // address of next available space in _virtual_space;
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290 // Accessors
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291 VirtualSpaceNode* next() { return _next; }
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292 void set_next(VirtualSpaceNode* v) { _next = v; }
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293
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294 void set_reserved(MemRegion const v) { _reserved = v; }
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295 void set_top(MetaWord* v) { _top = v; }
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296
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297 // Accessors
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298 MemRegion* reserved() { return &_reserved; }
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299 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
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300
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301 // Returns true if "word_size" is available in the virtual space
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302 bool is_available(size_t word_size) { return _top + word_size <= end(); }
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303
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304 MetaWord* top() const { return _top; }
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305 void inc_top(size_t word_size) { _top += word_size; }
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306
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307 // used and capacity in this single entry in the list
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308 size_t used_words_in_vs() const;
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309 size_t capacity_words_in_vs() const;
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310
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311 bool initialize();
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312
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313 // get space from the virtual space
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314 Metachunk* take_from_committed(size_t chunk_word_size);
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315
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316 // Allocate a chunk from the virtual space and return it.
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317 Metachunk* get_chunk_vs(size_t chunk_word_size);
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318 Metachunk* get_chunk_vs_with_expand(size_t chunk_word_size);
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319
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320 // Expands/shrinks the committed space in a virtual space. Delegates
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321 // to Virtualspace
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322 bool expand_by(size_t words, bool pre_touch = false);
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323 bool shrink_by(size_t words);
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324
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325 #ifdef ASSERT
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326 // Debug support
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327 static void verify_virtual_space_total();
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328 static void verify_virtual_space_count();
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329 void mangle();
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330 #endif
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331
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332 void print_on(outputStream* st) const;
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333 };
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334
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335 // byte_size is the size of the associated virtualspace.
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336 VirtualSpaceNode::VirtualSpaceNode(size_t byte_size) : _top(NULL), _next(NULL), _rs(0) {
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337 // This allocates memory with mmap. For DumpSharedspaces, allocate the
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338 // space at low memory so that other shared images don't conflict.
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339 // This is the same address as memory needed for UseCompressedOops but
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340 // compressed oops don't work with CDS (offsets in metadata are wrong), so
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341 // borrow the same address.
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342 if (DumpSharedSpaces) {
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343 char* shared_base = (char*)HeapBaseMinAddress;
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344 _rs = ReservedSpace(byte_size, 0, false, shared_base, 0);
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345 if (_rs.is_reserved()) {
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346 assert(_rs.base() == shared_base, "should match");
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347 } else {
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348 // If we are dumping the heap, then allocate a wasted block of address
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349 // space in order to push the heap to a lower address. This extra
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350 // address range allows for other (or larger) libraries to be loaded
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351 // without them occupying the space required for the shared spaces.
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352 uintx reserved = 0;
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353 uintx block_size = 64*1024*1024;
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354 while (reserved < SharedDummyBlockSize) {
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355 char* dummy = os::reserve_memory(block_size);
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356 reserved += block_size;
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357 }
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358 _rs = ReservedSpace(byte_size);
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359 }
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360 MetaspaceShared::set_shared_rs(&_rs);
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361 } else {
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362 _rs = ReservedSpace(byte_size);
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363 }
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364
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365 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
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366 }
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367
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368 // List of VirtualSpaces for metadata allocation.
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369 // It has a _next link for singly linked list and a MemRegion
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370 // for total space in the VirtualSpace.
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371 class VirtualSpaceList : public CHeapObj<mtClass> {
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372 friend class VirtualSpaceNode;
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373
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374 enum VirtualSpaceSizes {
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375 VirtualSpaceSize = 256 * K
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376 };
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377
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378 // Global list of virtual spaces
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379 // Head of the list
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380 VirtualSpaceNode* _virtual_space_list;
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381 // virtual space currently being used for allocations
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382 VirtualSpaceNode* _current_virtual_space;
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383 // Free chunk list for all other metadata
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384 ChunkManager _chunk_manager;
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385
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386 // Can this virtual list allocate >1 spaces? Also, used to determine
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387 // whether to allocate unlimited small chunks in this virtual space
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388 bool _is_class;
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389 bool can_grow() const { return !is_class() || !UseCompressedKlassPointers; }
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390
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391 // Sum of space in all virtual spaces and number of virtual spaces
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392 size_t _virtual_space_total;
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393 size_t _virtual_space_count;
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394
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395 ~VirtualSpaceList();
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396
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397 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
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398
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399 void set_virtual_space_list(VirtualSpaceNode* v) {
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400 _virtual_space_list = v;
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401 }
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402 void set_current_virtual_space(VirtualSpaceNode* v) {
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403 _current_virtual_space = v;
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404 }
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405
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406 void link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size);
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407
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408 // Get another virtual space and add it to the list. This
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409 // is typically prompted by a failed attempt to allocate a chunk
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410 // and is typically followed by the allocation of a chunk.
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411 bool grow_vs(size_t vs_word_size);
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412
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413 public:
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414 VirtualSpaceList(size_t word_size);
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415 VirtualSpaceList(ReservedSpace rs);
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416
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417 Metachunk* get_new_chunk(size_t word_size,
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418 size_t grow_chunks_by_words,
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419 size_t medium_chunk_bunch);
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420
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421 // Get the first chunk for a Metaspace. Used for
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422 // special cases such as the boot class loader, reflection
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423 // class loader and anonymous class loader.
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424 Metachunk* get_initialization_chunk(size_t word_size, size_t chunk_bunch);
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425
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426 VirtualSpaceNode* current_virtual_space() {
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427 return _current_virtual_space;
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428 }
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429
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430 ChunkManager* chunk_manager() { return &_chunk_manager; }
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431 bool is_class() const { return _is_class; }
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432
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433 // Allocate the first virtualspace.
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434 void initialize(size_t word_size);
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435
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436 size_t virtual_space_total() { return _virtual_space_total; }
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437 void inc_virtual_space_total(size_t v) {
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438 Atomic::add_ptr(v, &_virtual_space_total);
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439 }
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440
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441 size_t virtual_space_count() { return _virtual_space_count; }
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442 void inc_virtual_space_count() {
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443 Atomic::inc_ptr(&_virtual_space_count);
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444 }
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445
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446 // Used and capacity in the entire list of virtual spaces.
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447 // These are global values shared by all Metaspaces
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448 size_t capacity_words_sum();
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449 size_t capacity_bytes_sum() { return capacity_words_sum() * BytesPerWord; }
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450 size_t used_words_sum();
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451 size_t used_bytes_sum() { return used_words_sum() * BytesPerWord; }
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452
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453 bool contains(const void *ptr);
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454
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455 void print_on(outputStream* st) const;
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456
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457 class VirtualSpaceListIterator : public StackObj {
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458 VirtualSpaceNode* _virtual_spaces;
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459 public:
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460 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
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461 _virtual_spaces(virtual_spaces) {}
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462
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463 bool repeat() {
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464 return _virtual_spaces != NULL;
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465 }
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466
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467 VirtualSpaceNode* get_next() {
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468 VirtualSpaceNode* result = _virtual_spaces;
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469 if (_virtual_spaces != NULL) {
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470 _virtual_spaces = _virtual_spaces->next();
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471 }
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472 return result;
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473 }
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474 };
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475 };
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476
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477 class Metadebug : AllStatic {
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478 // Debugging support for Metaspaces
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479 static int _deallocate_block_a_lot_count;
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480 static int _deallocate_chunk_a_lot_count;
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481 static int _allocation_fail_alot_count;
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482
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483 public:
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484 static int deallocate_block_a_lot_count() {
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485 return _deallocate_block_a_lot_count;
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486 }
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487 static void set_deallocate_block_a_lot_count(int v) {
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488 _deallocate_block_a_lot_count = v;
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489 }
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490 static void inc_deallocate_block_a_lot_count() {
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491 _deallocate_block_a_lot_count++;
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492 }
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493 static int deallocate_chunk_a_lot_count() {
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494 return _deallocate_chunk_a_lot_count;
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495 }
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496 static void reset_deallocate_chunk_a_lot_count() {
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497 _deallocate_chunk_a_lot_count = 1;
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498 }
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499 static void inc_deallocate_chunk_a_lot_count() {
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500 _deallocate_chunk_a_lot_count++;
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501 }
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502
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503 static void init_allocation_fail_alot_count();
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504 #ifdef ASSERT
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505 static bool test_metadata_failure();
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506 #endif
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507
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508 static void deallocate_chunk_a_lot(SpaceManager* sm,
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509 size_t chunk_word_size);
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510 static void deallocate_block_a_lot(SpaceManager* sm,
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511 size_t chunk_word_size);
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512
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513 };
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514
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515 int Metadebug::_deallocate_block_a_lot_count = 0;
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516 int Metadebug::_deallocate_chunk_a_lot_count = 0;
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517 int Metadebug::_allocation_fail_alot_count = 0;
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518
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519 // SpaceManager - used by Metaspace to handle allocations
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520 class SpaceManager : public CHeapObj<mtClass> {
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521 friend class Metaspace;
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522 friend class Metadebug;
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523
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524 private:
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525
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526 // protects allocations and contains.
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527 Mutex* const _lock;
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528
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529 // Chunk related size
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530 size_t _medium_chunk_bunch;
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531
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532 // List of chunks in use by this SpaceManager. Allocations
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533 // are done from the current chunk. The list is used for deallocating
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534 // chunks when the SpaceManager is freed.
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535 Metachunk* _chunks_in_use[NumberOfInUseLists];
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536 Metachunk* _current_chunk;
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537
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538 // Virtual space where allocation comes from.
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539 VirtualSpaceList* _vs_list;
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540
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541 // Number of small chunks to allocate to a manager
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542 // If class space manager, small chunks are unlimited
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543 static uint const _small_chunk_limit;
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544 bool has_small_chunk_limit() { return !vs_list()->is_class(); }
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545
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546 // Sum of all space in allocated chunks
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547 size_t _allocation_total;
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548
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549 // Free lists of blocks are per SpaceManager since they
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550 // are assumed to be in chunks in use by the SpaceManager
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551 // and all chunks in use by a SpaceManager are freed when
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552 // the class loader using the SpaceManager is collected.
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553 BlockFreelist _block_freelists;
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554
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555 // protects virtualspace and chunk expansions
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556 static const char* _expand_lock_name;
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557 static const int _expand_lock_rank;
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558 static Mutex* const _expand_lock;
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559
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560 private:
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561 // Accessors
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562 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
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563 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
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564
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565 BlockFreelist* block_freelists() const {
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566 return (BlockFreelist*) &_block_freelists;
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567 }
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568
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569 VirtualSpaceList* vs_list() const { return _vs_list; }
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570
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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571 Metachunk* current_chunk() const { return _current_chunk; }
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572 void set_current_chunk(Metachunk* v) {
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573 _current_chunk = v;
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574 }
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575
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576 Metachunk* find_current_chunk(size_t word_size);
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577
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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578 // Add chunk to the list of chunks in use
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579 void add_chunk(Metachunk* v, bool make_current);
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580
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581 Mutex* lock() const { return _lock; }
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582
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583 const char* chunk_size_name(ChunkIndex index) const;
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584
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585 protected:
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586 void initialize();
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587
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588 public:
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589 SpaceManager(Mutex* lock,
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diff changeset
590 VirtualSpaceList* vs_list);
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591 ~SpaceManager();
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592
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593 enum ChunkMultiples {
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594 MediumChunkMultiple = 4
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595 };
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596
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597 // Accessors
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598 size_t specialized_chunk_size() { return SpecializedChunk; }
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599 size_t small_chunk_size() { return (size_t) vs_list()->is_class() ? ClassSmallChunk : SmallChunk; }
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600 size_t medium_chunk_size() { return (size_t) vs_list()->is_class() ? ClassMediumChunk : MediumChunk; }
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601 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
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diff changeset
602
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603 size_t allocation_total() const { return _allocation_total; }
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604 void inc_allocation_total(size_t v) { Atomic::add_ptr(v, &_allocation_total); }
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605 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
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606
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607 static Mutex* expand_lock() { return _expand_lock; }
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608
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609 // Set the sizes for the initial chunks.
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diff changeset
610 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
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diff changeset
611 size_t* chunk_word_size,
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diff changeset
612 size_t* class_chunk_word_size);
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diff changeset
613
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614 size_t sum_capacity_in_chunks_in_use() const;
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coleenp
parents:
diff changeset
615 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
616 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
617 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
618 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
619
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
620 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
621 size_t sum_count_in_chunks_in_use(ChunkIndex i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
622
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
623 Metachunk* get_new_chunk(size_t word_size, size_t grow_chunks_by_words);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
624
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
625 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
626 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
627 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
628
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
629 // Helper for allocations
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
630 MetaWord* allocate_work(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
631
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
632 // Returns a block to the per manager freelist
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
633 void deallocate(MetaWord* p, size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
634
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
635 // 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
636 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
637 size_t calc_chunk_size(size_t allocation_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
638
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
639 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
640 // 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
641 // and allocates from that chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
642 MetaWord* grow_and_allocate(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
643
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
644 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
645
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
646 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
647 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
648 void locked_print_chunks_in_use_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
649
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
650 void verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
651 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
652 NOT_PRODUCT(void mangle_freed_chunks();)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
653 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
654 void verify_allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
655 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
656 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
657
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
658 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
659
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
660 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
661 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
662 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
663 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
664 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
665 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
666 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
667
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
668 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
669
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
670 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
671
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
672 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
673 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
674 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
675 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
676 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
677 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
678 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
679 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
680
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
681 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
682 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
683 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
684 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
685 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
686
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
687 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
688 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
689
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
690 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
691 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
692 if (dictionary() == NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
693 _dictionary = new BlockTreeDictionary();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
694 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
695 dictionary()->return_chunk(free_chunk);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
696 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
697
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
698 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
699 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
700 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
701 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
702
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
703 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
704 // Dark matter. Too small for dictionary.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
705 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
706 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
707
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
708 Metablock* free_block =
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
709 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::exactly);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
710 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
711 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
712 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
713
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
714 return (MetaWord*) free_block;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
715 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
716
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
717 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
718 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
719 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
720 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
721 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
722 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
723
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
724 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
726 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
727 _rs.release();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
728 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
729
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
730 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
731 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
732 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
733
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
734 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
735 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
736 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
737 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
738
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
739
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
740 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
741 // 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
742 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
743 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
744 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
745 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
746 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
747
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
748 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
749 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
750 tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
751 // Dump some information about the virtual space that is nearly full
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
752 print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
753 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
754 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
755 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
756
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
757 // 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
758 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
759
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
760 // Point the chunk at the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
761 Metachunk* result = Metachunk::initialize(chunk_limit, chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
762 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
763 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
764
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
765
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
766 // Expand the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
767 bool VirtualSpaceNode::expand_by(size_t words, bool pre_touch) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
768 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
769 bool result = virtual_space()->expand_by(bytes, pre_touch);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
770 if (TraceMetavirtualspaceAllocation && !result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
771 gclog_or_tty->print_cr("VirtualSpaceNode::expand_by() failed "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
772 "for byte size " SIZE_FORMAT, bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
773 virtual_space()->print();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
774 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
775 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
776 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
777
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
778 // Shrink the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
779 bool VirtualSpaceNode::shrink_by(size_t words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
780 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
781 virtual_space()->shrink_by(bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
782 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
783 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
784
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
785 // Add another chunk to the chunk list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
786
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
787 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
788 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
789 Metachunk* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
790
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
791 return take_from_committed(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
792 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
793
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
794 Metachunk* VirtualSpaceNode::get_chunk_vs_with_expand(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
795 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
796
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
797 Metachunk* new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
798
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
799 if (new_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
800 // Only a small part of the virtualspace is committed when first
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
801 // allocated so committing more here can be expected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
802 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
803 size_t aligned_expand_vs_by_words = align_size_up(chunk_word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
804 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
805 expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
806 new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
807 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
808 return new_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
809 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
810
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
811 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
812
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
813 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
814 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
815 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
816
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
817 // An allocation out of this Virtualspace that is larger
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
818 // than an initial commit size can waste that initial committed
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
819 // space.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
820 size_t committed_byte_size = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
821 bool result = virtual_space()->initialize(_rs, committed_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
822 if (result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
823 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
824 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
825 (HeapWord*)(_rs.base() + _rs.size())));
6726
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
826
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
827 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
828 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
829 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
830 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
831 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
832 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
833 _rs.size() / BytesPerWord));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
834 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
835
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
836 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
837 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
838
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
839 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
840 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
841 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
842 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
843 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
844 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
845 PTR_FORMAT ", " PTR_FORMAT ")",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
846 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
847 capacity == 0 ? 0 : used * 100 / capacity,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
848 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
849 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
850 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
851
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
852 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
853 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
854 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
855 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
856 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
857 #endif // ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
858
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
859 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
860 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
861
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
862 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
863 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
864 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
865 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
866 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
867 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
870 size_t VirtualSpaceList::used_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
871 size_t allocated_by_vs = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
872 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
873 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
874 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
875 // Sum used region [bottom, top) in each virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
876 allocated_by_vs += vsl->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
877 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
878 assert(allocated_by_vs >= chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
879 err_msg("Total in free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
880 " greater than total from virtual_spaces " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
881 allocated_by_vs, chunk_manager()->free_chunks_total()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
882 size_t used =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
883 allocated_by_vs - chunk_manager()->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
884 return used;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
887 // Space available in all MetadataVirtualspaces allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
888 // for metadata. This is the upper limit on the capacity
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
889 // of chunks allocated out of all the MetadataVirtualspaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
890 size_t VirtualSpaceList::capacity_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
891 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
892 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
893 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
894 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
895 capacity += vsl->capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
896 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
897 return capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
898 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
899
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
900 VirtualSpaceList::VirtualSpaceList(size_t word_size ) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
901 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
902 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
903 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
904 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
905 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
906 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
907 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
908 bool initialization_succeeded = grow_vs(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
909
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
910 assert(initialization_succeeded,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
911 " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
912 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
913
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
914 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
915 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
916 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
917 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
918 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
919 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
920 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
921 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
922 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
923 bool succeeded = class_entry->initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
924 assert(succeeded, " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
925 link_vs(class_entry, rs.size()/BytesPerWord);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
926 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
927
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
928 // Allocate another meta virtual space and add it to the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
929 bool VirtualSpaceList::grow_vs(size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
930 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
931 if (vs_word_size == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
932 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
933 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
934 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
935 size_t vs_byte_size = vs_word_size * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
936 assert(vs_byte_size % os::vm_page_size() == 0, "Not aligned");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
937
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
938 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
939 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
940 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
941 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
942 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
943 } else {
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
944 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
945 OrderAccess::storestore();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
946 link_vs(new_entry, vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
947 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
948 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
949 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
950
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
951 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
952 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
953 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
954 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
955 current_virtual_space()->set_next(new_entry);
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 set_current_virtual_space(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
958 inc_virtual_space_total(vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
959 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
960 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
961 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
962 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
963 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
964 VirtualSpaceNode* vsl = current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
965 vsl->print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
966 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
967 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
968
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
969 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
970 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
971 size_t medium_chunk_bunch) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
972
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
973 // Get a chunk from the chunk freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
974 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
975
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
976 // Allocate a chunk out of the current virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
977 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
978 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
979 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
980
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
981 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
982 // Not enough room in current virtual space. Try to commit
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
983 // more space.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
984 size_t expand_vs_by_words = MAX2(medium_chunk_bunch,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
985 grow_chunks_by_words);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
986 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
987 size_t aligned_expand_vs_by_words = align_size_up(expand_vs_by_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
988 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
989 bool vs_expanded =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
990 current_virtual_space()->expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
991 if (!vs_expanded) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
992 // Should the capacity of the metaspaces be expanded for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
993 // this allocation? If it's the virtual space for classes and is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
994 // being used for CompressedHeaders, don't allocate a new virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
995 if (can_grow() && MetaspaceGC::should_expand(this, word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
996 // Get another virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
997 size_t grow_vs_words =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
998 MAX2((size_t)VirtualSpaceSize, aligned_expand_vs_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
999 if (grow_vs(grow_vs_words)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1000 // Got it. It's on the list now. Get a chunk from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1001 next = current_virtual_space()->get_chunk_vs_with_expand(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1002 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1003 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1004 // Allocation will fail and induce a GC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1005 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1006 gclog_or_tty->print_cr("VirtualSpaceList::get_new_chunk():"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1007 " Fail instead of expand the metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1008 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1009 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1010 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1011 // The virtual space expanded, get a new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1012 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1013 assert(next != NULL, "Just expanded, should succeed");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1014 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1015 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1016
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1017 assert(next == NULL || (next->next() == NULL && next->prev() == NULL),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1018 "New chunk is still on some list");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1019 return next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1020 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1021
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1022 Metachunk* VirtualSpaceList::get_initialization_chunk(size_t chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1023 size_t chunk_bunch) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1024 // Get a chunk from the chunk freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1025 Metachunk* new_chunk = get_new_chunk(chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1026 chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1027 chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1028 return new_chunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1029 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1030
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1031 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1032 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1033 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1034 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1035 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1036 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1037 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1038 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1039 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1040
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1041 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1042 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1043 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1044 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1045 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1046 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1047 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1048 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1049 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1050 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1051 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1052
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1053
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1054 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1055
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1056 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1057 // 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
1058 // 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
1059 // 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
1060 // 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
1061 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1062 // 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
1063 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1064 // 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
1065 // resize the capacity of the metaspaces. The current implementation
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1066 // is based on the flags MinMetaspaceFreeRatio and MaxHeapFreeRatio used
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1067 // to resize the Java heap by some GC's. New flags can be implemented
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1068 // if really needed. MinHeapFreeRatio is used to calculate how much
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1069 // 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
1070 // 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
1071 // 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
1072 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1073
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1074 // 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
1075 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1076 // another expansion is not requested too soon. If that is not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1077 // enough to satisfy the allocation (i.e. big enough for a word_size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1078 // allocation), increase by MaxMetaspaceExpansion. If that is still
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1079 // not enough, expand by the size of the allocation (word_size) plus
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1080 // some.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1081 size_t MetaspaceGC::delta_capacity_until_GC(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1082 size_t before_inc = MetaspaceGC::capacity_until_GC();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1083 size_t min_delta_words = MinMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1084 size_t max_delta_words = MaxMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1085 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1086 size_t size_delta_words = align_size_up(word_size, page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1087 size_t delta_words = MAX2(size_delta_words, min_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1088 if (delta_words > min_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1089 // 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
1090 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1091 // for this allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1092 delta_words = MAX2(delta_words, max_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1093 if (delta_words > max_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1094 // This allocation is large but the next ones are probably not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1095 // so increase by the minimum.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1096 delta_words = delta_words + min_delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1097 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1098 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1099 return delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1100 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1101
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1102 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1103
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1104 // Class virtual space should always be expanded. Call GC for the other
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1105 // metadata virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1106 if (vsl == Metaspace::class_space_list()) return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1107
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1108 // If the user wants a limit, impose one.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1109 size_t max_metaspace_size_words = MaxMetaspaceSize / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1110 size_t metaspace_size_words = MetaspaceSize / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1111 if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1112 vsl->capacity_words_sum() >= max_metaspace_size_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1113 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1114 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1116 // If this is part of an allocation after a GC, expand
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1117 // unconditionally.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1118 if(MetaspaceGC::expand_after_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1119 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1120 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1121
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1122 // If the capacity is below the minimum capacity, allow the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1123 // expansion. Also set the high-water-mark (capacity_until_GC)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1124 // to that minimum capacity so that a GC will not be induced
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1125 // until that minimum capacity is exceeded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1126 if (vsl->capacity_words_sum() < metaspace_size_words ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1127 capacity_until_GC() == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1128 set_capacity_until_GC(metaspace_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1129 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1130 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1131 if (vsl->capacity_words_sum() < capacity_until_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1132 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1133 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1134 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1135 gclog_or_tty->print_cr(" allocation request size " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1136 " capacity_until_GC " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1137 " capacity_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1138 " used_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1139 " free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1140 " free chunks count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1141 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1142 capacity_until_GC(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1143 vsl->capacity_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1144 vsl->used_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1145 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1146 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1147 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1148 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1149 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1150 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1151 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1152
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1153 // Variables are in bytes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1154
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1155 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1156 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1157 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1158 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1159
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1160 VirtualSpaceList *vsl = Metaspace::space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1161
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1162 size_t capacity_after_gc = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1163 // Check to see if these two can be calculated without walking the CLDG
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1164 size_t used_after_gc = vsl->used_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1165 size_t capacity_until_GC = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1166 size_t free_after_gc = capacity_until_GC - used_after_gc;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1167
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1168 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1169 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
1170
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1171 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
1172 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1173 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1174 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1175 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1176 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1177
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1178 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1179 const double free_percentage = ((double)free_after_gc) / capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1180 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1181 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1182 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1183 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1184 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1185 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1186 double d_free_after_gc = free_after_gc / (double) K;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1187 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1188 " free_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1189 " used_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1190 " capacity_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1191 " metaspace HWM : %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1192 free_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1193 used_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1194 capacity_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1195 capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1196 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1197 " free_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1198 free_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1199 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1200
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1201
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1202 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1203 // 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
1204 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1205 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1206 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1207 if (expand_bytes >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1208 size_t expand_words = expand_bytes / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1209 MetaspaceGC::inc_capacity_until_GC(expand_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1210 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1211 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1212 size_t new_capacity_until_GC = MetaspaceGC::capacity_until_GC_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1213 gclog_or_tty->print_cr(" expanding:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1214 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1215 " expand_words: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1216 " MinMetaspaceExpansion: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1217 " new metaspace HWM: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1218 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1219 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1220 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1221 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1222 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1223 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1224 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1225
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1226 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1227 size_t shrink_words = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1228 // We would never want to shrink more than this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1229 size_t max_shrink_words = capacity_until_GC - minimum_desired_capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1230 assert(max_shrink_words >= 0, err_msg("max_shrink_words " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1231 max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1232
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1233 // Should shrinking be considered?
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1234 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1235 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1236 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
1237 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
1238 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
1239 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1240 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1241 if (PrintGC && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1242 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1243 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1244 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1245 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1246 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1247 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1248 " capacity_until_GC: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1249 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1250 " maximum_desired_capacity: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1251 capacity_until_GC / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1252 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1253 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1256 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1257 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1258
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1259 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1260 // Capacity too large, compute shrinking size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1261 shrink_words = capacity_until_GC - maximum_desired_capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1262 // 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
1263 // 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
1264 // 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
1265 // 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
1266 // 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
1267 // size without shrinking, it goes back to 0%.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1268 shrink_words = shrink_words / 100 * current_shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1269 assert(shrink_words <= max_shrink_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1270 err_msg("invalid shrink size " SIZE_FORMAT " not <= " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1271 shrink_words, max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1272 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1273 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1274 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1275 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1276 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1277 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1278 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1279 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1280 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1281 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1282 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1283 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1284 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1285 " shrink_words: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1286 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1287 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1288 " MinMetaspaceExpansion: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1289 shrink_words / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1290 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1291 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1292 MinMetaspaceExpansion / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1293 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1294 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1295 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1296
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1297
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1298 // Don't shrink unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1299 if (shrink_words >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1300 VirtualSpaceNode* csp = vsl->current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1301 size_t available_to_shrink = csp->capacity_words_in_vs() -
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1302 csp->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1303 shrink_words = MIN2(shrink_words, available_to_shrink);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1304 csp->shrink_by(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1305 MetaspaceGC::dec_capacity_until_GC(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1306 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1307 size_t new_capacity_until_GC = MetaspaceGC::capacity_until_GC_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1308 gclog_or_tty->print_cr(" metaspace HWM: %.1fK", new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1309 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1311 assert(vsl->used_bytes_sum() == used_after_gc &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1312 used_after_gc <= vsl->capacity_bytes_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1313 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1315 }
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 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1318
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1319 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1320 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1321 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1322 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1323 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1324 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1325 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1326 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
1327 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
1328 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1329 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1330 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1331 vsl->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1332
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1333 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1334 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
1335 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1336 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1337 gclog_or_tty->print_cr(" Free chunks total %d count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1338 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1339 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1340 }
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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1343 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1344 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1345 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1346 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1347
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1348 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1349 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1350 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1351 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1352 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1353 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1354 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
1355 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
1356 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1357 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1358 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1359 sm->deallocate(dummy_block, raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1360 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1361 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1362 Metadebug::inc_deallocate_block_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1363 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1364 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1365 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1366
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1367 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1368 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1369 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1370 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
1371 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1372 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1373
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1374 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1375 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1376 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1377 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1378 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1379 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1380 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1381 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1382 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1383 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1384 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1385 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1386 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1389 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1390 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1391 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1392
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1393 // ChunkList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1394
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1395 size_t ChunkList::sum_list_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1396 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1397 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1398 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1399 result += cur->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1400 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1401 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1402 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1403 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1404
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1405 size_t ChunkList::sum_list_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1406 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1407 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1408 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1409 result++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1410 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1411 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1412 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1413 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1414
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1415 size_t ChunkList::sum_list_capacity() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1416 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1417 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1418 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1419 result += cur->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1420 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1421 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1422 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1423 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1424
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1425 void ChunkList::add_at_head(Metachunk* head, Metachunk* tail) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1426 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1427 assert(head == tail || tail->next() == NULL,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1428 "Not the tail or the head has already been added to a list");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1429
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1430 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1431 gclog_or_tty->print("ChunkList::add_at_head(head, tail): ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1432 Metachunk* cur = head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1433 while (cur != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1434 gclog_or_tty->print(PTR_FORMAT " (" SIZE_FORMAT ") ", cur, cur->word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1435 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1436 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1437 gclog_or_tty->print_cr("");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1438 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1439
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1440 if (tail != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1441 tail->set_next(_head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1442 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1443 set_head(head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1444 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1445
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1446 void ChunkList::add_at_head(Metachunk* list) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1447 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1448 // Nothing to add
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1449 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1450 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1451 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1452 Metachunk* head = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1453 Metachunk* tail = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1454 Metachunk* cur = head->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1455 // Search for the tail since it is not passed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1456 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1457 tail = cur;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1458 cur = cur->next();
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 add_at_head(head, tail);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1461 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1462
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1463 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1464
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1465 // Verification of _free_chunks_total and _free_chunks_count does not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1466 // work with the CMS collector because its use of additional locks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1467 // complicate the mutex deadlock detection but it can still be useful
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1468 // for detecting errors in the chunk accounting with other collectors.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1469
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1470 size_t ChunkManager::free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1471 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1472 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1473 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1474 Mutex::_no_safepoint_check_flag);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1475 slow_locked_verify_free_chunks_total();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1476 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1477 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1478 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1479 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1480
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1481 size_t ChunkManager::free_chunks_total_in_bytes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1482 return free_chunks_total() * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1483 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1484
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1485 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1486 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1487 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1488 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1489 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1490 // 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
1491 // 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
1492 slow_locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1493 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1494 #endif
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1495 return _free_chunks_count;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1496 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1497
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1498 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1499 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1500 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1501 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
1502 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1503 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1504 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1505
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1506 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1507 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1508 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1509 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1510 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1511
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1512 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1513 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1514 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1515 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
1516 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1517 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1518 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1520 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1521 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1522 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1523 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1524 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1525 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1527
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1528 void ChunkManager::verify() {
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1529 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1530 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1531 locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1532 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1533
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1534 void ChunkManager::locked_verify() {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1535 locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1536 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1538
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1539 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1540 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1541 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
1542 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1543 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1544
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1545 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1546 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1547 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
1548 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1549 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1550 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1551 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1552 }
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 // 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
1555 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1556 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1557 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1558 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1559 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
1560 ChunkList* list = free_chunks(i);
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 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1563 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1564 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1565
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1566 result = result + list->sum_list_capacity();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1567 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1568 result = result + humongous_dictionary()->total_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1569 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1570 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1571
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1572 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1573 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1574 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1575 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
1576 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1577 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1578 continue;
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 count = count + list->sum_list_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1581 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1582 count = count + humongous_dictionary()->total_free_blocks();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1583 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1584 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1585
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1586 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
1587 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1588 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1589 return free_chunks(index);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1590 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1591
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1592 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1593 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1594 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
1595 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1596 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1597 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1598 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
1599 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1600 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1601
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1602 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1603 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1604 // 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
1605 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1606 assert(chunk != NULL, "Deallocating NULL");
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1607 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1608 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1609 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1610 tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1611 PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1612 chunk, chunk->word_size());
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 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1615 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1616
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1617 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1618 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1619
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1620 slow_locked_verify();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1621
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1622 Metachunk* chunk = NULL;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1623 if (list_index(word_size) != HumongousIndex) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1624 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1625 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1626
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1627 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1628 debug_only(Metachunk* debug_head = chunk;)
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1629
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1630 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1631 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1632 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1633
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1634 // Remove the chunk as the head of the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1635 free_list->set_head(chunk->next());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1636
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1637 // Chunk is being removed from the chunks free list.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1638 dec_free_chunks_total(chunk->capacity_word_size());
6725
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 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1641 tty->print_cr("ChunkManager::free_chunks_get: free_list "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1642 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1643 free_list, chunk, chunk->word_size());
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 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1646 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1647 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1648 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1649
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1650 if (chunk != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1651 if (TraceMetadataHumongousAllocation) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1652 size_t waste = chunk->word_size() - word_size;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1653 tty->print_cr("Free list allocate humongous chunk size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1654 " for requested size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1655 " waste " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1656 chunk->word_size(), word_size, waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1657 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1658 // Chunk is being removed from the chunks free list.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1659 dec_free_chunks_total(chunk->capacity_word_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1660 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1661 chunk->set_is_free(false);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1662 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1663 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1664 return NULL;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1665 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1666 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1667
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1668 // 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
1669 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1670 chunk->set_prev(NULL);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1671 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1672 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1673 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1674
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1675 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1676 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
1677 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1678
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1679 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1680 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1681 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1682 return NULL;
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
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1685 assert((word_size <= chunk->word_size()) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1686 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1687 "Non-humongous variable sized chunk");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1688 if (TraceMetadataChunkAllocation) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1689 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1690 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1691 ChunkList* list = find_free_chunks_list(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1692 list_count = list->sum_list_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1693 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1694 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1695 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1696 tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1697 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1698 this, chunk, chunk->word_size(), list_count);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1699 locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1700 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1701
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1702 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1703 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1704
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1705 void ChunkManager::print_on(outputStream* out) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1706 if (PrintFLSStatistics != 0) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1707 humongous_dictionary()->report_statistics();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1708 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1709 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1710
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1711 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1712
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1713 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
1714 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1715 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1716 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1717 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1718 *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
1719 *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
1720 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1721 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1722 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1723 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1724 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1725 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1726 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1727 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1728 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1729 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1730 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1731 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1732 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1733 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1734 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1735 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1736 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1737 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1738 }
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1739 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
1740 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
1741 " class " SIZE_FORMAT,
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1742 *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
1743 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1744
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1745 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
1746 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1747 size_t free = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1748 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
1749 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1750 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1751 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1752 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1753 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1754 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1755 return free;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1758 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
1759 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1760 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1761 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
1762 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1763 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1764
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1765 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1768 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
1769 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1770 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1771 // 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
1772 // current chunk from which allocations are still being done.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1773 if (chunk != NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1774 Metachunk* prev = chunk;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1775 while (chunk != NULL && chunk != current_chunk()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1776 result += chunk->free_word_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1777 prev = chunk;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1778 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1779 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1780 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1781 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1782 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1783
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1784 size_t SpaceManager::sum_capacity_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1785 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1786 size_t sum = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1787 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
1788 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1789 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1790 // Just changed this sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1791 // sum += chunk->word_size() - Metachunk::overhead();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1792 sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1793 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1794 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1795 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1796 return sum;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1797 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1798
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1799 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1800 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1801 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
1802 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1803 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1804
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1805 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1806 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1807
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1808 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
1809 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1810 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1811 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1812 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1813 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1814 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1815 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1816 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1817
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1818
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1819 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
1820 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1821 size_t used = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1822 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
1823 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1824 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1825 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1826 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1827 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1828 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1829 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1830 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1831
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1832 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
1833
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1834 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
1835 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1836 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1837 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1838 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1839 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1840 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1841 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1842 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1843 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1844 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1845
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1846 vs_list()->chunk_manager()->locked_print_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1847 vs_list()->chunk_manager()->locked_print_sum_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1848 }
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 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
1851
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1852 // 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
1853 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1854 // 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
1855 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1856 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1857 if (chunks_in_use(MediumIndex) == NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1858 (!has_small_chunk_limit() ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1859 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
1860 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
1861 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
1862 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1863 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1864 } else {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1865 chunk_word_size = medium_chunk_size();
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
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1868 // 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
1869 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1870 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1871 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1872 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1873 HumongousChunkGranularity);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1874 chunk_word_size =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1875 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
1876
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1877 assert(!SpaceManager::is_humongous(word_size) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1878 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1879 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
1880 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1881 word_size, chunk_word_size));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1882 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1883 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1884 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1885 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
1886 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
1887 chunk_word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1888 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
1889 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1890 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1891 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1892 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1893
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1894 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
1895 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1896 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1897 assert(current_chunk() == NULL ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1898 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1899 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1900 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
1901
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1902 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1903 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1904 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1905 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1906 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1907 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1908 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1909 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
1910 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1911 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1912 word_size, words_used, words_left);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1913 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1914
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1915 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1916 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
1917 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
1918
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1919 // 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
1920 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1921 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1922 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1923 // 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
1924 add_chunk(next, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1925 return next->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1926 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1927 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1928 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1929
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1930 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1931
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1932 for (ChunkIndex i = ZeroIndex;
6885
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jmasa
parents: 6786
diff changeset
1933 i < NumberOfInUseLists ;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1934 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1935 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
1936 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1937 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
1938 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1939 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
1940 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1941 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1942 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1943 sum_waste_in_chunks_in_use(HumongousIndex));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1944 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1945 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1946 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1947 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1948 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1949 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1950
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1951 SpaceManager::SpaceManager(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1952 VirtualSpaceList* vs_list) :
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1953 _vs_list(vs_list),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1954 _allocation_total(0),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1955 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1956 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1957 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1958 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1959
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1960 void SpaceManager::initialize() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1961 Metadebug::init_allocation_fail_alot_count();
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1962 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
1963 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1964 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1965 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1966 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1967 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1968 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1969 }
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 SpaceManager::~SpaceManager() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1972 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1973 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1974
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1975 ChunkManager* chunk_manager = vs_list()->chunk_manager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1976
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1977 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1978
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1979 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1980 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1981 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1982 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1983
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1984 // Mangle freed memory.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1985 NOT_PRODUCT(mangle_freed_chunks();)
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1986
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1987 // 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
1988 // below.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1989 chunk_manager->inc_free_chunks_total(sum_capacity_in_chunks_in_use(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1990 sum_count_in_chunks_in_use());
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 // 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
1993 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1994
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1995 // 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
1996 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1997
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1998 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
1999 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2000 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
2001 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2002 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2003 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2004 Metachunk* chunks = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2005 chunk_manager->free_chunks(i)->add_at_head(chunks);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2006 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2007 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2008 gclog_or_tty->print_cr("updated freelist count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2009 chunk_manager->free_chunks(i)->sum_list_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2010 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2011 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2012 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
2013 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2014
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2015 // 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
2016 // 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
2017 // 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
2018
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2019 // Humongous chunks
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2020 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2021 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
2022 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2023 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2024 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2025 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2026 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2027 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2028
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2029 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2030 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2031 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2032 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2033 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2034 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
2035 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2036 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2037 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2038 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2039 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2040 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2041 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
2042 " granularity %d",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2043 humongous_chunks->word_size(), HumongousChunkGranularity));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2044 Metachunk* next_humongous_chunks = humongous_chunks->next();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2045 chunk_manager->humongous_dictionary()->return_chunk(humongous_chunks);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2046 humongous_chunks = next_humongous_chunks;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2047 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2048 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2049 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2050 gclog_or_tty->print_cr("updated dictionary count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2051 chunk_manager->humongous_dictionary()->total_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2052 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2053 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2054 set_chunks_in_use(HumongousIndex, NULL);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2055 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2056 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2057
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2058 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
2059 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2060 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2061 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2062 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2063 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2064 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2065 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2066 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2067 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2068 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2069 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2070 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2071 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2072
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2073 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2074 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2075 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2076 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2077 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2078 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2079 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2080 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2081 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2082 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2083 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2084 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2085 default:
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2086 assert(size > MediumChunk || size > ClassMediumChunk,
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2087 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2088 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2089 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2090 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2091
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2092 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
2093 assert_lock_strong(_lock);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2094 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2095 assert(word_size >= min_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2096 err_msg("Should not deallocate dark matter " SIZE_FORMAT, word_size));
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2097 block_freelists()->return_block(p, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2098 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2099
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2100 // 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
2101 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
2102
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2103 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2104 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
2105
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2106 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2107
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2108 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2109 // chunk for that list.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2110 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
2111
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2112 if (index != HumongousIndex) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2113 set_current_chunk(new_chunk);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2114 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
2115 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2116 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2117 // 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
2118 // 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
2119 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2120 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2121 // 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
2122 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2123 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2124 // 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
2125 // 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
2126 // 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
2127 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2128 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2129 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2130
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2131 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
2132 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2133
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2134 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2135 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2136 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2137 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2138 new_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2139 vs_list()->chunk_manager()->locked_print_free_chunks(tty);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2142
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2143 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
2144 size_t grow_chunks_by_words) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2145
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2146 Metachunk* next = vs_list()->get_new_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2147 grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2148 medium_chunk_bunch());
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 if (TraceMetadataHumongousAllocation &&
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2151 SpaceManager::is_humongous(next->word_size())) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2152 gclog_or_tty->print_cr(" new humongous chunk word size " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2153 next->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2154 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2155
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2156 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2157 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2158
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2159 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2160 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2161
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2162 // If only the dictionary is going to be used (i.e., no
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2163 // indexed free list), then there is a minimum size requirement.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2164 // MinChunkSize is a placeholder for the real minimum size JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2165 size_t byte_size = word_size * BytesPerWord;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2166
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2167 size_t byte_size_with_overhead = byte_size + Metablock::overhead();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2168
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2169 size_t raw_bytes_size = MAX2(byte_size_with_overhead,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2170 Metablock::min_block_byte_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2171 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2172 size_t raw_word_size = raw_bytes_size / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2173 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2174
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2175 BlockFreelist* fl = block_freelists();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2176 MetaWord* p = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2177 // 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
2178 // 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
2179 // 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
2180 // 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
2181 // for allocations. Do some profiling. JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2182 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2183 p = fl->get_block(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2184 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2185 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2186 p = allocate_work(raw_word_size);
6725
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 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2189
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2190 return p;
6725
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 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2194 // This methods does not know about blocks (Metablocks)
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2195 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2196 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2197 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2198 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2199 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2200 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2201 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2202 // Is there space in the current chunk?
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2203 MetaWord* result = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2204
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2205 // 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
2206 // 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
2207 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2208 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2209 assert(current_chunk() != NULL, "should never happen");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2210 inc_allocation_total(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2211 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
2212 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2213 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2214 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2215 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2216
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2217 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2218 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2219 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2220 if (result > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2221 inc_allocation_total(word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2222 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2223 "Head of the list is being allocated");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2224 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2225
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2226 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2227 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2228
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2229 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2230 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2231 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2232 // being in the dictionary alters a chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2233 if (block_freelists()->total_size() == 0) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2234 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
2235 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2236 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2237 curr->verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2238 verify_chunk_size(curr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2239 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2240 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2243 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2244
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2245 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2246 assert(is_humongous(chunk->word_size()) ||
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2247 chunk->word_size() == medium_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2248 chunk->word_size() == small_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2249 chunk->word_size() == specialized_chunk_size(),
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2250 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2251 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2252 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2253
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2254 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2255 void SpaceManager::verify_allocation_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2256 // Verification is only guaranteed at a safepoint.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2257 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2258 gclog_or_tty->print_cr("Chunk " PTR_FORMAT " allocation_total " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2259 " sum_used_in_chunks_in_use " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2260 this,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2261 allocation_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2262 sum_used_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2263 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2264 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2265 assert(allocation_total() == sum_used_in_chunks_in_use(),
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
2266 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
2267 " vs " SIZE_FORMAT,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2268 allocation_total(), sum_used_in_chunks_in_use()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2269 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2270
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2271 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2272
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2273 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2274 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2275 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2276 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2277 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2278 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2279
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2280 // 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
2281 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2282 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2283 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2284 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2285 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2286 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2287 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2288 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2289 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2290 block_freelists()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2291 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2292 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2293 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2294 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2295 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2296 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2297 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2298
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2299 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
2300 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2301 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2302
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2303 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
2304 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2305 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2306 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2307
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2308 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2309 void SpaceManager::mangle_freed_chunks() {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2310 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2311 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2312 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2313 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2314 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2315 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2316 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2317 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2318 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2319 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2320 #endif // PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2321
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2322 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2323
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2324 size_t MetaspaceAux::used_in_bytes(Metaspace::MetadataType mdtype) {
6730
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2325 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2326 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2327 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2328 Metaspace* msp = iter.get_next();
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2329 // Sum allocation_total for each metaspace
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2330 if (msp != NULL) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2331 used += msp->used_words(mdtype);
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2332 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2333 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2334 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2335 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2336
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2337 size_t MetaspaceAux::free_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2338 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2339 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2340 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2341 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2342 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2343 free += msp->free_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2344 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2345 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2346 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2347 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2348
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2349 size_t MetaspaceAux::capacity_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2350 size_t capacity = free_chunks_total(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2351 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2352 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2353 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2354 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2355 capacity += msp->capacity_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2356 }
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 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2359 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2360
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2361 size_t MetaspaceAux::reserved_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2362 size_t reserved = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2363 Metaspace::class_space_list()->virtual_space_total() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2364 Metaspace::space_list()->virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2365 return reserved * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2366 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2367
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2368 size_t MetaspaceAux::min_chunk_size() { return Metaspace::first_chunk_word_size(); }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2369
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2370 size_t MetaspaceAux::free_chunks_total(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2371 ChunkManager* chunk = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2372 Metaspace::class_space_list()->chunk_manager() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2373 Metaspace::space_list()->chunk_manager();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2374 chunk->slow_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2375 return chunk->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2376 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2377
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2378 size_t MetaspaceAux::free_chunks_total_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2379 return free_chunks_total(mdtype) * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2380 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2381
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2382 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
2383 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2384 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2385 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2386 "->" SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2387 "(" SIZE_FORMAT "/" SIZE_FORMAT ")",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2388 prev_metadata_used,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2389 used_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2390 capacity_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2391 reserved_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2392 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2393 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2394 "->" SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2395 "(" SIZE_FORMAT "K/" SIZE_FORMAT "K)",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2396 prev_metadata_used / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2397 used_in_bytes()/ K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2398 capacity_in_bytes()/K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2399 reserved_in_bytes()/ K);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2402 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2403 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2404
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2405 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2406 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2407 Metaspace::MetadataType ct = Metaspace::ClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2408 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2409
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2410 out->print_cr(" Metaspace total "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2411 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2412 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2413 capacity_in_bytes()/K, used_in_bytes()/K, reserved_in_bytes()/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2414 out->print_cr(" data space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2415 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2416 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2417 capacity_in_bytes(nct)/K, used_in_bytes(nct)/K, reserved_in_bytes(nct)/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2418 out->print_cr(" class space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2419 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2420 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2421 capacity_in_bytes(ct)/K, used_in_bytes(ct)/K, reserved_in_bytes(ct)/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2423
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2424 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2425 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2426 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2427 size_t free_chunks_capacity_bytes = free_chunks_total_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2428 size_t capacity_bytes = capacity_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2429 size_t used_bytes = used_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2430 size_t free_bytes = free_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2431 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2432 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2433 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
2434 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2435 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2436 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2437 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2438 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2439 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2440 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2441 capacity_bytes / K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2442 assert(used_and_free == capacity_bytes, "Accounting is wrong");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2443 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2444
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2445 // Print total fragmentation for class and data metaspaces separately
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2446 void MetaspaceAux::print_waste(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2447
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2448 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0, large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2449 size_t specialized_count = 0, small_count = 0, medium_count = 0, large_count = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2450 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0, cls_large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2451 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_large_count = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2452
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2453 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2454 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2455 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2456 if (msp != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2457 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
2458 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
2459 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
2460 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
2461 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
2462 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2463 large_waste += msp->vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2464 large_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2465
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2466 cls_specialized_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2467 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2468 cls_small_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SmallIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2469 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2470 cls_medium_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(MediumIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2471 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2472 cls_large_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2473 cls_large_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2474 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2475 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2476 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
2477 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
2478 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2479 SIZE_FORMAT " medium(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2480 specialized_count, specialized_waste, small_count,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2481 small_waste, medium_count, medium_waste);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2482 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2483 SIZE_FORMAT " small(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2484 cls_specialized_count, cls_specialized_waste,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2485 cls_small_count, cls_small_waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2486 }
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 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2489 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2490 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2491 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2492 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2493 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2495
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2496 void MetaspaceAux::verify_free_chunks() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2497 Metaspace::space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2498 Metaspace::class_space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2499 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2500
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2501 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2503 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
2504 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
2505
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2506 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2507 initialize(lock, type);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2510 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2511 delete _vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2512 delete _class_vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2513 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2514
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2515 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2516 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2518 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2520 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2521 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2522 int max_alignment = os::vm_page_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2523 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2524
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2525 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2526 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2527 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2528 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2529 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2530
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2531 // 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
2532 // 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
2533 // remainder is the misc code and data chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2534 size_t total = align_size_up(SharedReadOnlySize + SharedReadWriteSize +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2535 SharedMiscDataSize + SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2536 os::vm_allocation_granularity());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2537 size_t word_size = total/wordSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2538 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2539 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2540 // 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
2541 // 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
2542 // the addresses don't conflict)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2543 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2544 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2545 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2547 // 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
2548 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2549 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2550 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2551 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2552 FileMapInfo::set_current_info(mapinfo);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2553 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2554 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2555 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2556 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2557 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2558
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2559 // Initialize these before initializing the VirtualSpaceList
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2560 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2561 _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
2562 // 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
2563 // 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
2564 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2565 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2566 (ClassMetaspaceSize/BytesPerWord)*2);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2567 _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
2568 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2569 // of the boot class loader size.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2570 size_t word_size = VIRTUALSPACEMULTIPLIER * first_chunk_word_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2571 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2572 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2576 // For UseCompressedKlassPointers the class space is reserved as a piece of the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2577 // Java heap because the compression algorithm is the same for each. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2578 // argument passed in is at the top of the compressed space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2579 void Metaspace::initialize_class_space(ReservedSpace rs) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2580 // The reserved space size may be bigger because of alignment, esp with UseLargePages
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
2581 assert(rs.size() >= ClassMetaspaceSize,
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
2582 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), ClassMetaspaceSize));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2583 _class_space_list = new VirtualSpaceList(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2584 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2585
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2586 void Metaspace::initialize(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2587 MetaspaceType type) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2588
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2589 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2590 "Metadata VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2591
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2592 _vsm = new SpaceManager(lock, space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2593 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2594 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2595 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2596 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2597 size_t class_word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2598 vsm()->get_initial_chunk_sizes(type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2599 &word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2600 &class_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2601
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2602 assert(class_space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2603 "Class VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2604
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2605 // Allocate SpaceManager for classes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2606 _class_vsm = new SpaceManager(lock, class_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2607 if (_class_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2608 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2609 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2610
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2611 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
2612
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2613 // Allocate chunk for metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2614 Metachunk* new_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2615 space_list()->get_initialization_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2616 vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2617 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
2618 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2619 // 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
2620 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2621 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2622
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2623 // Allocate chunk for class metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2624 Metachunk* class_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2625 class_space_list()->get_initialization_chunk(class_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2626 class_vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2627 if (class_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2628 class_vsm()->add_chunk(class_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2630 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2631
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2632 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
2633 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2634 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
2635 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2636
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2637 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2638 // DumpSharedSpaces doesn't use class metadata area (yet)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2639 if (mdtype == ClassType && !DumpSharedSpaces) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2640 return class_vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2641 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2642 return vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2643 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2645
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2646 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2647 MetaWord* result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2648 MetaspaceGC::set_expand_after_GC(true);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2649 size_t before_inc = MetaspaceGC::capacity_until_GC();
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2650 size_t delta_words = MetaspaceGC::delta_capacity_until_GC(word_size);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2651 MetaspaceGC::inc_capacity_until_GC(delta_words);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2652 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2653 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2654 " to " SIZE_FORMAT, before_inc, MetaspaceGC::capacity_until_GC());
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2655 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2656
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2657 result = allocate(word_size, mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2658
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2659 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2660 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2661
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2662 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2663 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2664 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2665 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
2666 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2667 }
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 size_t Metaspace::used_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2670 // return vsm()->allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2671 return mdtype == ClassType ? class_vsm()->sum_used_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2672 vsm()->sum_used_in_chunks_in_use(); // includes overhead!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2673 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2674
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2675 size_t Metaspace::free_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2676 return mdtype == ClassType ? class_vsm()->sum_free_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2677 vsm()->sum_free_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2678 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2679
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2680 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2681 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2682 // 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
2683 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2684 // is already counted in some chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2685 size_t Metaspace::capacity_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2686 return mdtype == ClassType ? class_vsm()->sum_capacity_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2687 vsm()->sum_capacity_in_chunks_in_use();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2690 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
2691 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2692 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
2693 // Don't take Heap_lock
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2694 MutexLocker ml(vsm()->lock());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2695 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2696 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2697 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2698 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2699 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2700 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2701 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2702 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2703 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2704 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2705 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2706 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2707 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2708 MutexLocker ml(vsm()->lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2709
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2710 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2711 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2712 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2713 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2714 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2715 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2716 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2717 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2718 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2719 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2720 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2721 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2722 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2723 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2724
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2725 Metablock* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2726 bool read_only, MetadataType mdtype, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2727 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2728 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2729 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2730 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2731
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2732 // SSS: Should we align the allocations and make sure the sizes are aligned.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2733 MetaWord* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2734
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2735 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
2736 "ClassLoaderData::the_null_class_loader_data() should have been used.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2737 // 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
2738 // 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
2739 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2740 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2741 if (read_only) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2742 result = loader_data->ro_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2743 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2744 result = loader_data->rw_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2745 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2746 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2747 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2748 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2749 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2750 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2751
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2752 result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2753
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2754 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2755 // Try to clean out some memory and retry.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2756 result =
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2757 Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2758 loader_data, word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2759
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2760 // If result is still null, we are out of memory.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2761 if (result == NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2762 if (Verbose && TraceMetadataChunkAllocation) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2763 gclog_or_tty->print_cr("Metaspace allocation failed for size "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2764 SIZE_FORMAT, word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2765 if (loader_data->metaspace_or_null() != NULL) loader_data->metaspace_or_null()->dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2766 MetaspaceAux::dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2767 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2768 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2769 report_java_out_of_memory("Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2770
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2771 if (JvmtiExport::should_post_resource_exhausted()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2772 JvmtiExport::post_resource_exhausted(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2773 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2774 "Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2775 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2776 THROW_OOP_0(Universe::out_of_memory_error_perm_gen());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2777 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2778 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2779 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2780 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2781
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2782 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2783 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2784 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2785 vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2786 class_vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2787 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2788 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2789
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2790 bool Metaspace::contains(const void * ptr) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2791 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2792 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2793 }
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2794 // 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
2795 // 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
2796 // 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
2797 // 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
2798 // caller in MetaspaceObj::is_metadata() function.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2799 return space_list()->contains(ptr) || class_space_list()->contains(ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2800 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2801
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2802 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2803 vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2804 class_vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2805 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2806
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2807 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2808 if (UseMallocOnly) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2809 // Just print usage for now
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2810 out->print_cr("usage %d", used_words(Metaspace::NonClassType));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2811 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2812 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2813 vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2814 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2815 class_vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2816 }