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annotate src/share/vm/memory/metaspace.cpp @ 8813:6574f999e0cf

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Merge
author dcubed
date Sat, 23 Mar 2013 22:35:02 -0700
parents 47902e9acb3a 91bf0bdae37b
children df254344edf1
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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 // align up to vm allocation granularity
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338 byte_size = align_size_up(byte_size, os::vm_allocation_granularity());
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339
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340 // This allocates memory with mmap. For DumpSharedspaces, try to reserve
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341 // configurable address, generally at the top of the Java heap so other
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342 // memory addresses don't conflict.
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343 if (DumpSharedSpaces) {
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344 char* shared_base = (char*)SharedBaseAddress;
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345 _rs = ReservedSpace(byte_size, 0, false, shared_base, 0);
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346 if (_rs.is_reserved()) {
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347 assert(shared_base == 0 || _rs.base() == shared_base, "should match");
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348 } else {
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349 // Get a mmap region anywhere if the SharedBaseAddress fails.
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350 _rs = ReservedSpace(byte_size);
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351 }
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352 MetaspaceShared::set_shared_rs(&_rs);
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353 } else {
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354 _rs = ReservedSpace(byte_size);
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355 }
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356
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357 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
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358 }
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359
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360 // List of VirtualSpaces for metadata allocation.
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361 // It has a _next link for singly linked list and a MemRegion
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362 // for total space in the VirtualSpace.
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363 class VirtualSpaceList : public CHeapObj<mtClass> {
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364 friend class VirtualSpaceNode;
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365
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366 enum VirtualSpaceSizes {
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367 VirtualSpaceSize = 256 * K
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368 };
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369
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370 // Global list of virtual spaces
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371 // Head of the list
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372 VirtualSpaceNode* _virtual_space_list;
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373 // virtual space currently being used for allocations
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374 VirtualSpaceNode* _current_virtual_space;
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375 // Free chunk list for all other metadata
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376 ChunkManager _chunk_manager;
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377
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378 // Can this virtual list allocate >1 spaces? Also, used to determine
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379 // whether to allocate unlimited small chunks in this virtual space
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380 bool _is_class;
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381 bool can_grow() const { return !is_class() || !UseCompressedKlassPointers; }
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382
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383 // Sum of space in all virtual spaces and number of virtual spaces
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384 size_t _virtual_space_total;
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385 size_t _virtual_space_count;
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386
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387 ~VirtualSpaceList();
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388
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389 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
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390
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391 void set_virtual_space_list(VirtualSpaceNode* v) {
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392 _virtual_space_list = v;
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393 }
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394 void set_current_virtual_space(VirtualSpaceNode* v) {
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395 _current_virtual_space = v;
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396 }
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397
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398 void link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size);
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399
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400 // Get another virtual space and add it to the list. This
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401 // is typically prompted by a failed attempt to allocate a chunk
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402 // and is typically followed by the allocation of a chunk.
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403 bool grow_vs(size_t vs_word_size);
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404
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405 public:
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406 VirtualSpaceList(size_t word_size);
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407 VirtualSpaceList(ReservedSpace rs);
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408
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409 Metachunk* get_new_chunk(size_t word_size,
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410 size_t grow_chunks_by_words,
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411 size_t medium_chunk_bunch);
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412
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413 // Get the first chunk for a Metaspace. Used for
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414 // special cases such as the boot class loader, reflection
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415 // class loader and anonymous class loader.
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416 Metachunk* get_initialization_chunk(size_t word_size, size_t chunk_bunch);
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417
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418 VirtualSpaceNode* current_virtual_space() {
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419 return _current_virtual_space;
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420 }
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421
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422 ChunkManager* chunk_manager() { return &_chunk_manager; }
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423 bool is_class() const { return _is_class; }
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424
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425 // Allocate the first virtualspace.
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426 void initialize(size_t word_size);
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427
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428 size_t virtual_space_total() { return _virtual_space_total; }
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429 void inc_virtual_space_total(size_t v) {
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430 Atomic::add_ptr(v, &_virtual_space_total);
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431 }
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432
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433 size_t virtual_space_count() { return _virtual_space_count; }
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434 void inc_virtual_space_count() {
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435 Atomic::inc_ptr(&_virtual_space_count);
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436 }
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437
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438 // Used and capacity in the entire list of virtual spaces.
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439 // These are global values shared by all Metaspaces
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440 size_t capacity_words_sum();
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441 size_t capacity_bytes_sum() { return capacity_words_sum() * BytesPerWord; }
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442 size_t used_words_sum();
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443 size_t used_bytes_sum() { return used_words_sum() * BytesPerWord; }
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444
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445 bool contains(const void *ptr);
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446
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447 void print_on(outputStream* st) const;
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448
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449 class VirtualSpaceListIterator : public StackObj {
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450 VirtualSpaceNode* _virtual_spaces;
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451 public:
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452 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
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453 _virtual_spaces(virtual_spaces) {}
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454
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455 bool repeat() {
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456 return _virtual_spaces != NULL;
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457 }
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458
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459 VirtualSpaceNode* get_next() {
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460 VirtualSpaceNode* result = _virtual_spaces;
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461 if (_virtual_spaces != NULL) {
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462 _virtual_spaces = _virtual_spaces->next();
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463 }
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464 return result;
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465 }
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466 };
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467 };
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468
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469 class Metadebug : AllStatic {
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470 // Debugging support for Metaspaces
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471 static int _deallocate_block_a_lot_count;
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472 static int _deallocate_chunk_a_lot_count;
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473 static int _allocation_fail_alot_count;
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474
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475 public:
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476 static int deallocate_block_a_lot_count() {
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477 return _deallocate_block_a_lot_count;
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478 }
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479 static void set_deallocate_block_a_lot_count(int v) {
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480 _deallocate_block_a_lot_count = v;
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481 }
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482 static void inc_deallocate_block_a_lot_count() {
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483 _deallocate_block_a_lot_count++;
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484 }
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485 static int deallocate_chunk_a_lot_count() {
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486 return _deallocate_chunk_a_lot_count;
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487 }
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488 static void reset_deallocate_chunk_a_lot_count() {
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489 _deallocate_chunk_a_lot_count = 1;
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490 }
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491 static void inc_deallocate_chunk_a_lot_count() {
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492 _deallocate_chunk_a_lot_count++;
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493 }
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494
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495 static void init_allocation_fail_alot_count();
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496 #ifdef ASSERT
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497 static bool test_metadata_failure();
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498 #endif
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499
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500 static void deallocate_chunk_a_lot(SpaceManager* sm,
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501 size_t chunk_word_size);
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502 static void deallocate_block_a_lot(SpaceManager* sm,
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503 size_t chunk_word_size);
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504
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505 };
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506
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507 int Metadebug::_deallocate_block_a_lot_count = 0;
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508 int Metadebug::_deallocate_chunk_a_lot_count = 0;
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509 int Metadebug::_allocation_fail_alot_count = 0;
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510
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511 // SpaceManager - used by Metaspace to handle allocations
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512 class SpaceManager : public CHeapObj<mtClass> {
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513 friend class Metaspace;
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coleenp
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514 friend class Metadebug;
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515
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516 private:
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517
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518 // protects allocations and contains.
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519 Mutex* const _lock;
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520
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521 // Chunk related size
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522 size_t _medium_chunk_bunch;
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523
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524 // List of chunks in use by this SpaceManager. Allocations
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525 // are done from the current chunk. The list is used for deallocating
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526 // chunks when the SpaceManager is freed.
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527 Metachunk* _chunks_in_use[NumberOfInUseLists];
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528 Metachunk* _current_chunk;
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529
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530 // Virtual space where allocation comes from.
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531 VirtualSpaceList* _vs_list;
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532
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533 // Number of small chunks to allocate to a manager
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534 // If class space manager, small chunks are unlimited
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535 static uint const _small_chunk_limit;
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536 bool has_small_chunk_limit() { return !vs_list()->is_class(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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537
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538 // Sum of all space in allocated chunks
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539 size_t _allocation_total;
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540
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541 // Free lists of blocks are per SpaceManager since they
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coleenp
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542 // are assumed to be in chunks in use by the SpaceManager
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543 // and all chunks in use by a SpaceManager are freed when
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544 // the class loader using the SpaceManager is collected.
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545 BlockFreelist _block_freelists;
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546
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547 // protects virtualspace and chunk expansions
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diff changeset
548 static const char* _expand_lock_name;
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549 static const int _expand_lock_rank;
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550 static Mutex* const _expand_lock;
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551
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552 private:
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553 // Accessors
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554 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
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555 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
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556
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557 BlockFreelist* block_freelists() const {
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558 return (BlockFreelist*) &_block_freelists;
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559 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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560
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561 VirtualSpaceList* vs_list() const { return _vs_list; }
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562
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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563 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
564 void set_current_chunk(Metachunk* v) {
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565 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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566 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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567
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568 Metachunk* find_current_chunk(size_t word_size);
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diff changeset
569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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570 // Add chunk to the list of chunks in use
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571 void add_chunk(Metachunk* v, bool make_current);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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572
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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573 Mutex* lock() const { return _lock; }
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574
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575 const char* chunk_size_name(ChunkIndex index) const;
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576
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577 protected:
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578 void initialize();
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diff changeset
579
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580 public:
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581 SpaceManager(Mutex* lock,
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582 VirtualSpaceList* vs_list);
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583 ~SpaceManager();
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584
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585 enum ChunkMultiples {
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586 MediumChunkMultiple = 4
6725
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587 };
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588
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589 // Accessors
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diff changeset
590 size_t specialized_chunk_size() { return SpecializedChunk; }
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591 size_t small_chunk_size() { return (size_t) vs_list()->is_class() ? ClassSmallChunk : SmallChunk; }
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592 size_t medium_chunk_size() { return (size_t) vs_list()->is_class() ? ClassMediumChunk : MediumChunk; }
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593 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
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diff changeset
594
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595 size_t allocation_total() const { return _allocation_total; }
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596 void inc_allocation_total(size_t v) { Atomic::add_ptr(v, &_allocation_total); }
7446
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597 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
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598
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599 static Mutex* expand_lock() { return _expand_lock; }
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600
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diff changeset
601 // Set the sizes for the initial chunks.
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diff changeset
602 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
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diff changeset
603 size_t* chunk_word_size,
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diff changeset
604 size_t* class_chunk_word_size);
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diff changeset
605
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606 size_t sum_capacity_in_chunks_in_use() const;
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607 size_t sum_used_in_chunks_in_use() const;
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diff changeset
608 size_t sum_free_in_chunks_in_use() const;
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coleenp
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609 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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610 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
611
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
612 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
613 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
614
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
615 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
616
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
617 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
618 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
619 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
621 // Helper for allocations
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
622 MetaWord* allocate_work(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
623
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
624 // Returns a block to the per manager freelist
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
625 void deallocate(MetaWord* p, size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
626
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
627 // 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
628 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
629 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
630
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
631 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
632 // 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
633 // and allocates from that chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
634 MetaWord* grow_and_allocate(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
635
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
636 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
637
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
638 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
639 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
640 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
641
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
642 void verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
643 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
644 NOT_PRODUCT(void mangle_freed_chunks();)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
645 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
646 void verify_allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
647 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
648 };
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 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
651
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
652 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
653 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
654 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
655 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
656 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
657 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
658 Mutex::_allow_vm_block_flag);
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 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
661
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
662 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
663
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
664 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
665 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
666 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
667 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
668 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
669 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
670 }
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
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
673 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
674 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
675 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
676 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
677 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
678
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
679 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
680 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
681
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
682 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
683 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
684 if (dictionary() == NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
685 _dictionary = new BlockTreeDictionary();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
686 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
687 dictionary()->return_chunk(free_chunk);
6725
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 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
691 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
692 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
693 }
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 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
696 // Dark matter. Too small for dictionary.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
697 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
698 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
699
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
700 Metablock* free_block =
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
701 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::exactly);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
702 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
703 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
704 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
705
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
706 return (MetaWord*) free_block;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
707 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
708
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
709 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
710 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
711 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
712 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
713 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
714 }
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 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
717
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
718 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
719 _rs.release();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
722 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
723 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
724 }
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 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
727 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
728 return pointer_delta(end(), bottom(), sizeof(MetaWord));
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
731
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
732 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
733 // 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
734 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
735 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
736 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
737 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
738 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
739
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
740 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
741 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
742 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
743 // 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
744 print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
745 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
746 return NULL;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
749 // 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
750 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
751
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
752 // Point the chunk at the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
753 Metachunk* result = Metachunk::initialize(chunk_limit, chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
754 return result;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
758 // 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
759 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
760 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
761 bool result = virtual_space()->expand_by(bytes, pre_touch);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
762 if (TraceMetavirtualspaceAllocation && !result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
763 gclog_or_tty->print_cr("VirtualSpaceNode::expand_by() failed "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
764 "for byte size " SIZE_FORMAT, bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
765 virtual_space()->print();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
766 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
767 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
768 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
769
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
770 // 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
771 bool VirtualSpaceNode::shrink_by(size_t words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
772 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
773 virtual_space()->shrink_by(bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
774 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
775 }
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 // Add another chunk to the chunk list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
778
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
779 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
780 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
781 Metachunk* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
782
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
783 return take_from_committed(chunk_word_size);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
786 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
787 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
788
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
789 Metachunk* new_chunk = get_chunk_vs(chunk_word_size);
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 if (new_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
792 // 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
793 // allocated so committing more here can be expected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
794 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
795 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
796 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
797 expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
798 new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
799 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
800 return new_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
801 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
802
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
803 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
804
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
805 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
806 return false;
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
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
809 // 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
810 // 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
811 // space.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
812 size_t committed_byte_size = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
813 bool result = virtual_space()->initialize(_rs, committed_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
814 if (result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
815 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
816 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
817 (HeapWord*)(_rs.base() + _rs.size())));
6726
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
818
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
819 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
820 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
821 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
822 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
823 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
824 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
825 _rs.size() / BytesPerWord));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
826 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
827
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
828 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
829 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
830
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
831 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
832 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
833 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
834 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
835 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
836 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
837 PTR_FORMAT ", " PTR_FORMAT ")",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
838 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
839 capacity == 0 ? 0 : used * 100 / capacity,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
840 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
841 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
842 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
843
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
844 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
845 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
846 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
847 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
848 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
849 #endif // ASSERT
6725
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 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
852 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
853
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
854 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
855 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
856 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
857 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
858 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
859 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
860 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
861
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
862 size_t VirtualSpaceList::used_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
863 size_t allocated_by_vs = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
864 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
865 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
866 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
867 // Sum used region [bottom, top) in each virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
868 allocated_by_vs += vsl->used_words_in_vs();
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 assert(allocated_by_vs >= chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
871 err_msg("Total in free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
872 " greater than total from virtual_spaces " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
873 allocated_by_vs, chunk_manager()->free_chunks_total()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
874 size_t used =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
875 allocated_by_vs - chunk_manager()->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
876 return used;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
879 // Space available in all MetadataVirtualspaces allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
880 // 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
881 // of chunks allocated out of all the MetadataVirtualspaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
882 size_t VirtualSpaceList::capacity_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
883 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
884 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
885 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
886 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
887 capacity += vsl->capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
888 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
889 return capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
890 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
891
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
892 VirtualSpaceList::VirtualSpaceList(size_t word_size ) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
893 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
894 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
895 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
896 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
897 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
898 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
899 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
900 bool initialization_succeeded = grow_vs(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
901
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
902 assert(initialization_succeeded,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
903 " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
904 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
905
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
906 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
907 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
908 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
909 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
910 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
911 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
912 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
913 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
914 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
915 bool succeeded = class_entry->initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
916 assert(succeeded, " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
917 link_vs(class_entry, rs.size()/BytesPerWord);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
918 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
919
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
920 // 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
921 bool VirtualSpaceList::grow_vs(size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
922 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
923 if (vs_word_size == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
924 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
926 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
927 size_t vs_byte_size = vs_word_size * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
928 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
929
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
930 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
931 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
932 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
933 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
934 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
935 } else {
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
936 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
937 OrderAccess::storestore();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
938 link_vs(new_entry, vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
939 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
940 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
941 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
942
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
943 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
944 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
945 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
946 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
947 current_virtual_space()->set_next(new_entry);
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 set_current_virtual_space(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
950 inc_virtual_space_total(vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
951 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
952 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
953 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
954 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
955 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
956 VirtualSpaceNode* vsl = current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
957 vsl->print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
958 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
960
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
961 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
962 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
963 size_t medium_chunk_bunch) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
964
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
965 // Get a chunk from the chunk freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
966 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
967
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
968 // Allocate a chunk out of the current virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
969 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
970 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
971 }
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 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
974 // 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
975 // more space.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
976 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
977 grow_chunks_by_words);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
978 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
979 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
980 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
981 bool vs_expanded =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
982 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
983 if (!vs_expanded) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
984 // Should the capacity of the metaspaces be expanded for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
985 // 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
986 // 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
987 if (can_grow() && MetaspaceGC::should_expand(this, word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
988 // Get another virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
989 size_t grow_vs_words =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
990 MAX2((size_t)VirtualSpaceSize, aligned_expand_vs_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
991 if (grow_vs(grow_vs_words)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
992 // 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
993 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
994 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
995 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
996 // Allocation will fail and induce a GC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
997 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
998 gclog_or_tty->print_cr("VirtualSpaceList::get_new_chunk():"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
999 " Fail instead of expand the metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1000 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1001 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1002 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1003 // The virtual space expanded, get a new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1004 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
1005 assert(next != NULL, "Just expanded, should succeed");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1006 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1007 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1008
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1009 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
1010 "New chunk is still on some list");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1011 return next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1012 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1013
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1014 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
1015 size_t chunk_bunch) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1016 // Get a chunk from the chunk freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1017 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
1018 chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1019 chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1020 return new_chunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1021 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1022
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1023 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1024 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1025 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1026 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1027 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1028 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1029 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1030 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1031 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1032
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1033 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1034 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1035 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1036 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1037 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1038 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1039 return true;
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1042 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1043 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1044
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1045
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1046 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1047
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1048 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1049 // 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
1050 // 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
1051 // 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
1052 // 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
1053 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1054 // 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
1055 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1056 // 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
1057 // 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
1058 // 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
1059 // 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
1060 // 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
1061 // 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
1062 // 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
1063 // 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
1064 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1065
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1066 // 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
1067 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1068 // 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
1069 // 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
1070 // allocation), increase by MaxMetaspaceExpansion. If that is still
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1071 // 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
1072 // some.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1073 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
1074 size_t before_inc = MetaspaceGC::capacity_until_GC();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1075 size_t min_delta_words = MinMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1076 size_t max_delta_words = MaxMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1077 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
1078 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
1079 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
1080 if (delta_words > min_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1081 // 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
1082 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1083 // for this allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1084 delta_words = MAX2(delta_words, max_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1085 if (delta_words > max_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1086 // 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
1087 // so increase by the minimum.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1088 delta_words = delta_words + min_delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1089 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1090 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1091 return delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1092 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1093
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1094 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
8790
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1095 // If the user wants a limit, impose one.
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1096 if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1097 MetaspaceAux::reserved_in_bytes() >= MaxMetaspaceSize) {
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1098 return false;
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1099 }
6725
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 // 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
1102 // metadata virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1103 if (vsl == Metaspace::class_space_list()) return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1104
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1105 // 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
1106 // unconditionally.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1107 if(MetaspaceGC::expand_after_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1108 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1109 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1110
8790
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1111 size_t metaspace_size_words = MetaspaceSize / BytesPerWord;
7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
mgerdin
parents: 8786
diff changeset
1112
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1113 // 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
1114 // 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
1115 // 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
1116 // until that minimum capacity is exceeded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1117 if (vsl->capacity_words_sum() < metaspace_size_words ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1118 capacity_until_GC() == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1119 set_capacity_until_GC(metaspace_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1120 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1121 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1122 if (vsl->capacity_words_sum() < capacity_until_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1123 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1124 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1125 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1126 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
1127 " capacity_until_GC " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1128 " capacity_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1129 " used_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1130 " free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1131 " free chunks count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1132 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1133 capacity_until_GC(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1134 vsl->capacity_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1135 vsl->used_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1136 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1137 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1138 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1139 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1140 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1141 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1142 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1143
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1144 // Variables are in bytes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1145
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1146 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1147 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1148 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1149 _shrink_factor = 0;
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 VirtualSpaceList *vsl = Metaspace::space_list();
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 size_t capacity_after_gc = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1154 // 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
1155 size_t used_after_gc = vsl->used_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1156 size_t capacity_until_GC = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1157 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
1158
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1159 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1160 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
1161
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1162 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
1163 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1164 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1165 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1166 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1167 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1168
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1169 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1170 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
1171 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1172 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1173 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1174 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1175 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1176 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1177 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
1178 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1179 " free_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1180 " used_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1181 " capacity_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1182 " metaspace HWM : %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1183 free_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1184 used_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1185 capacity_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1186 capacity_until_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_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1189 free_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1190 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1191
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1192
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1193 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1194 // 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
1195 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1196 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
1197 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1198 if (expand_bytes >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1199 size_t expand_words = expand_bytes / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1200 MetaspaceGC::inc_capacity_until_GC(expand_words);
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 (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1203 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
1204 gclog_or_tty->print_cr(" expanding:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1205 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1206 " expand_words: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1207 " MinMetaspaceExpansion: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1208 " new metaspace HWM: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1209 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1210 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1211 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1212 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1213 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1214 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1215 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1216
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1217 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1218 size_t shrink_words = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1219 // We would never want to shrink more than this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1220 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
1221 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
1222 max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1223
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1224 // Should shrinking be considered?
8040
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1225 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents: 8007
diff changeset
1226 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1227 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
1228 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
1229 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
1230 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1231 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1232 if (PrintGC && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1233 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1234 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1235 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1236 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1237 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1238 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1239 " capacity_until_GC: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1240 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1241 " maximum_desired_capacity: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1242 capacity_until_GC / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1243 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1244 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1245 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1246
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1247 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1248 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1249
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1250 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1251 // Capacity too large, compute shrinking size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1252 shrink_words = capacity_until_GC - maximum_desired_capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1253 // 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
1254 // 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
1255 // 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
1256 // 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
1257 // 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
1258 // size without shrinking, it goes back to 0%.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1259 shrink_words = shrink_words / 100 * current_shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1260 assert(shrink_words <= max_shrink_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1261 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
1262 shrink_words, max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1263 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1264 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1265 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1266 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1267 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1268 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1269 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1270 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1271 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1272 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1273 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1274 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1275 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1276 " shrink_words: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1277 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1278 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1279 " MinMetaspaceExpansion: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1280 shrink_words / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1281 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1282 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1283 MinMetaspaceExpansion / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1284 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1285 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1286 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1287
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1288
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1289 // Don't shrink unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1290 if (shrink_words >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1291 VirtualSpaceNode* csp = vsl->current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1292 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
1293 csp->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1294 shrink_words = MIN2(shrink_words, available_to_shrink);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1295 csp->shrink_by(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1296 MetaspaceGC::dec_capacity_until_GC(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1297 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1298 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
1299 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
1300 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1301 }
8784
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
1302 assert(used_after_gc <= vsl->capacity_bytes_sum(),
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1303 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1304
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1305 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1306
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1307 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1308
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1309 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1310 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1311 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1312 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1313 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1314 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1315 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1316 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
1317 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
1318 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1319 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1320 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1321 vsl->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1322
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1323 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1324 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
1325 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1326 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1327 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
1328 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1329 vsl->chunk_manager()->free_chunks_count());
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1332 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1333 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1334 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1335 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1336 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1337
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1338 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1339 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1340 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1341 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1342 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1343 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1344 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
1345 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
1346 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1347 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1348 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1349 sm->deallocate(dummy_block, raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1350 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1351 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1352 Metadebug::inc_deallocate_block_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1353 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1354 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1355 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1356
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1357 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1358 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1359 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1360 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
1361 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1362 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1363
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1364 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1365 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1366 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1367 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1368 if (_allocation_fail_alot_count > 0) {
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 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1371 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1372 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1373 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1374 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1375 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1376 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1377 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1378 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1379 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1380 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1381 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1382
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1383 // ChunkList methods
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 size_t ChunkList::sum_list_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1386 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1387 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1388 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1389 result += cur->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1390 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1391 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1392 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1393 }
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_count() {
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++;
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_capacity() {
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 += cur->capacity_word_size();
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 void ChunkList::add_at_head(Metachunk* head, Metachunk* tail) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1416 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1417 assert(head == tail || tail->next() == NULL,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1418 "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
1419
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1420 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1421 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
1422 Metachunk* cur = head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1423 while (cur != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1424 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
1425 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1426 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1427 gclog_or_tty->print_cr("");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1428 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1429
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1430 if (tail != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1431 tail->set_next(_head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1432 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1433 set_head(head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1434 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1435
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1436 void ChunkList::add_at_head(Metachunk* list) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1437 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1438 // Nothing to add
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1439 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1440 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1441 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1442 Metachunk* head = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1443 Metachunk* tail = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1444 Metachunk* cur = head->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1445 // Search for the tail since it is not passed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1446 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1447 tail = cur;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1448 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1449 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1450 add_at_head(head, tail);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1451 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1452
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1453 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1454
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1455 // 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
1456 // 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
1457 // 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
1458 // 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
1459
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1460 size_t ChunkManager::free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1461 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1462 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1463 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1464 Mutex::_no_safepoint_check_flag);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1465 slow_locked_verify_free_chunks_total();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1466 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1467 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1468 return _free_chunks_total;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1471 size_t ChunkManager::free_chunks_total_in_bytes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1472 return free_chunks_total() * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1473 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1474
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1475 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1476 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1477 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1478 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1479 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1480 // 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
1481 // 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
1482 slow_locked_verify_free_chunks_count();
6725
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 #endif
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1485 return _free_chunks_count;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1486 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1487
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1488 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1489 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1490 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1491 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
1492 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1493 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1495
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1496 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1497 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1498 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1499 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1500 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1501
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1502 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1503 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1504 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1505 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
1506 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1507 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1510 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1511 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1512 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1513 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1514 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1515 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1516 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1518 void ChunkManager::verify() {
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1519 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1520 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1521 locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1522 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1523
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1524 void ChunkManager::locked_verify() {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1525 locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1526 locked_verify_free_chunks_total();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1529 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1530 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1531 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
1532 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1533 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1534
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1535 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1536 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1537 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
1538 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1539 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1540 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1541 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1542 }
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 // 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
1545 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1546 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1547 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1548 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1549 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
1550 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1551
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1552 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1553 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1554 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1555
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1556 result = result + list->sum_list_capacity();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1557 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1558 result = result + humongous_dictionary()->total_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1559 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1560 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1561
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1562 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1563 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1564 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1565 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
1566 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1567 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1568 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1569 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1570 count = count + list->sum_list_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1571 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1572 count = count + humongous_dictionary()->total_free_blocks();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1573 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1576 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
1577 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1578 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1579 return free_chunks(index);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1580 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1581
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1582 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1583 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1584 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
1585 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1586 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1587 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1588 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
1589 slow_locked_verify();
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::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1593 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1594 // 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
1595 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1596 assert(chunk != NULL, "Deallocating NULL");
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1597 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1598 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1599 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1600 tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1601 PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1602 chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1603 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1604 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1605 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1606
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1607 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1608 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1609
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1610 slow_locked_verify();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1611
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1612 Metachunk* chunk = NULL;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1613 if (list_index(word_size) != HumongousIndex) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1614 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1615 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1616
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1617 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1618 debug_only(Metachunk* debug_head = chunk;)
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1619
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1620 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1621 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1622 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1623
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1624 // Remove the chunk as the head of the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1625 free_list->set_head(chunk->next());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1626
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1627 // Chunk is being removed from the chunks free list.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1628 dec_free_chunks_total(chunk->capacity_word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1629
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1630 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1631 tty->print_cr("ChunkManager::free_chunks_get: free_list "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1632 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1633 free_list, chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1634 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1635 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1636 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1637 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1638 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1639
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1640 if (chunk != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1641 if (TraceMetadataHumongousAllocation) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1642 size_t waste = chunk->word_size() - word_size;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1643 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
1644 " for requested size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1645 " waste " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1646 chunk->word_size(), word_size, waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1647 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1648 // Chunk is being removed from the chunks free list.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1649 dec_free_chunks_total(chunk->capacity_word_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1650 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1651 chunk->set_is_free(false);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1652 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1653 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1654 return NULL;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1655 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1656 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1657
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1658 // 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
1659 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1660 chunk->set_prev(NULL);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1661 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1662 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1663 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1664
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1665 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1666 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
1667 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1668
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1669 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1670 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1671 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1672 return NULL;
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
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1675 assert((word_size <= chunk->word_size()) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1676 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1677 "Non-humongous variable sized chunk");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1678 if (TraceMetadataChunkAllocation) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1679 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1680 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1681 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
1682 list_count = list->sum_list_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1683 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1684 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1685 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1686 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
1687 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
1688 this, chunk, chunk->word_size(), list_count);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1689 locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1690 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1691
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1692 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1693 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1694
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1695 void ChunkManager::print_on(outputStream* out) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1696 if (PrintFLSStatistics != 0) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1697 humongous_dictionary()->report_statistics();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1698 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1699 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1700
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1701 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1702
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1703 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
1704 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1705 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1706 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1707 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1708 *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
1709 *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
1710 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1711 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1712 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1713 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1714 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1715 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1716 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1717 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1718 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1719 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1720 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1721 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1722 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1723 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1724 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1725 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1726 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1727 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1728 }
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1729 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
1730 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
1731 " class " SIZE_FORMAT,
8007
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
1732 *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
1733 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1734
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1735 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
1736 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1737 size_t free = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1738 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
1739 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1740 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1741 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1742 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1743 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1745 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1746 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1747
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1748 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
1749 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1750 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1751 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
1752 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1753 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1754
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1755 return result;
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(ChunkIndex index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1759 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1760 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1761 // 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
1762 // current chunk from which allocations are still being done.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1763 if (chunk != NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1764 Metachunk* prev = chunk;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1765 while (chunk != NULL && chunk != current_chunk()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1766 result += chunk->free_word_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1767 prev = chunk;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1768 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1769 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1770 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1771 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1772 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1773
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1774 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
1775 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1776 size_t sum = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1777 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
1778 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1779 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1780 // Just changed this sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1781 // sum += chunk->word_size() - Metachunk::overhead();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1782 sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1783 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1784 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1785 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1786 return sum;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1787 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1788
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1789 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1790 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1791 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1792 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1793 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1794
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1795 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1796 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1797
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1798 size_t SpaceManager::sum_count_in_chunks_in_use(ChunkIndex i) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1799 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1800 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1801 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1802 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1803 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1804 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1809 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
1810 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1811 size_t used = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1812 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
1813 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1814 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1815 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1816 chunk = chunk->next();
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 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1820 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1821
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1822 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
1823
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1824 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
1825 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1826 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1827 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1828 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1829 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1830 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1831 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1832 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1833 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1834 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1835
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1836 vs_list()->chunk_manager()->locked_print_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1837 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
1838 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1839
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1840 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
1841
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1842 // 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
1843 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1844 // 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
1845 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1846 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1847 if (chunks_in_use(MediumIndex) == NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1848 (!has_small_chunk_limit() ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1849 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
1850 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
1851 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
1852 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1853 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1854 } else {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1855 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1856 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1857
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1858 // 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
1859 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1860 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1861 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1862 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1863 HumongousChunkGranularity);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1864 chunk_word_size =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1865 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
1866
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1867 assert(!SpaceManager::is_humongous(word_size) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1868 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1869 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
1870 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1871 word_size, chunk_word_size));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1872 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1873 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1874 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1875 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
1876 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
1877 chunk_word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1878 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
1879 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1880 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1881 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1882 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1883
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1884 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
1885 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1886 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1887 assert(current_chunk() == NULL ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1888 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1889 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1890 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
1891
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1892 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1893 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1894 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1895 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1896 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1897 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1898 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1899 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
1900 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1901 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1902 word_size, words_used, words_left);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1903 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1904
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1905 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1906 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
1907 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
1908
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1909 // 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
1910 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1911 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1912 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
1913 // 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
1914 add_chunk(next, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1915 return next->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1916 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1917 return NULL;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1920 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1921
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1922 for (ChunkIndex i = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1923 i < NumberOfInUseLists ;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1924 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1925 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
1926 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1927 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
1928 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1929 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
1930 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1931 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1932 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1933 sum_waste_in_chunks_in_use(HumongousIndex));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1934 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1935 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1936 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1937 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1938 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1939 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1940
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1941 SpaceManager::SpaceManager(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1942 VirtualSpaceList* vs_list) :
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1943 _vs_list(vs_list),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1944 _allocation_total(0),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1945 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1946 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1947 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1948 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1949
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1950 void SpaceManager::initialize() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1951 Metadebug::init_allocation_fail_alot_count();
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1952 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
1953 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1954 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1955 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1956 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1957 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1958 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1959 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1960
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1961 SpaceManager::~SpaceManager() {
8784
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
1962 // This call this->_lock which can't be done while holding expand_lock()
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
1963 const size_t in_use_before = sum_capacity_in_chunks_in_use();
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
1964
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1965 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1966 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1967
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1968 ChunkManager* chunk_manager = vs_list()->chunk_manager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1969
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1970 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1971
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1972 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1973 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1974 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1975 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1976
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1977 // Mangle freed memory.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1978 NOT_PRODUCT(mangle_freed_chunks();)
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1979
6725
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coleenp
parents:
diff changeset
1980 // 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
1981 // below.
8784
79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
mgerdin
parents: 8738
diff changeset
1982 chunk_manager->inc_free_chunks_total(in_use_before,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1983 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1984
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1985 // 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
1986 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1987
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1988 // 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
1989 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1990
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1991 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
1992 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1993 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
1994 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1995 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1996 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1997 Metachunk* chunks = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1998 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
1999 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2000 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2001 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
2002 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
2003 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2004 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2005 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
2006 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2007
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2008 // 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
2009 // 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
2010 // 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
2011
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2012 // Humongous chunks
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2013 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2014 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
2015 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2016 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2017 gclog_or_tty->print("Humongous chunk dictionary: ");
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 are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2020 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2021
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2022 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2023 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2024 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2025 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2026 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2027 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
2028 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2029 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2030 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2031 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2032 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2033 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2034 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
2035 " granularity %d",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2036 humongous_chunks->word_size(), HumongousChunkGranularity));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2037 Metachunk* next_humongous_chunks = humongous_chunks->next();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2038 chunk_manager->humongous_dictionary()->return_chunk(humongous_chunks);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2039 humongous_chunks = next_humongous_chunks;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2040 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2041 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2042 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2043 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
2044 chunk_manager->humongous_dictionary()->total_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2045 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2046 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2047 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
2048 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2049 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2050
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2051 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
2052 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2053 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2054 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2055 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2056 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2057 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2058 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2059 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2060 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2061 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2062 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2063 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2064 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2065
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2066 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2067 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2068 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2069 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2070 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2071 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2072 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2073 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2074 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2075 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2076 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2077 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2078 default:
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2079 assert(size > MediumChunk || size > ClassMediumChunk,
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2080 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2081 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2082 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2083 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2084
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2085 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
2086 assert_lock_strong(_lock);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2087 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2088 assert(word_size >= min_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2089 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
2090 block_freelists()->return_block(p, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2091 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2092
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2093 // 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
2094 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
2095
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2096 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2097 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
2098
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2099 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2100
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2101 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2102 // chunk for that list.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2103 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
2104
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2105 if (index != HumongousIndex) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2106 set_current_chunk(new_chunk);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2107 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
2108 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2109 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2110 // 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
2111 // 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
2112 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2113 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2114 // 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
2115 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2116 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2117 // 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
2118 // 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
2119 // 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
2120 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2121 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2122 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2123
7447
1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index()
jmasa
parents: 7446
diff changeset
2124 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
2125 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2126
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2127 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2128 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2129 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2130 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2131 new_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2132 vs_list()->chunk_manager()->locked_print_free_chunks(tty);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2135
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2136 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
2137 size_t grow_chunks_by_words) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2138
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2139 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
2140 grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2141 medium_chunk_bunch());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2142
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2143 if (TraceMetadataHumongousAllocation &&
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2144 SpaceManager::is_humongous(next->word_size())) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2145 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
2146 next->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2147 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2148
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2149 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2150 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2151
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2152 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2153 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2154
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2155 // 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
2156 // 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
2157 // 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
2158 size_t byte_size = word_size * BytesPerWord;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2159
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2160 size_t byte_size_with_overhead = byte_size + Metablock::overhead();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2161
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2162 size_t raw_bytes_size = MAX2(byte_size_with_overhead,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2163 Metablock::min_block_byte_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2164 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2165 size_t raw_word_size = raw_bytes_size / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2166 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
2167
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2168 BlockFreelist* fl = block_freelists();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2169 MetaWord* p = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2170 // 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
2171 // 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
2172 // 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
2173 // 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
2174 // for allocations. Do some profiling. JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2175 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2176 p = fl->get_block(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2177 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2178 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2179 p = allocate_work(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2180 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2181 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2182
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2183 return p;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2184 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2185
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2186 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2187 // This methods does not know about blocks (Metablocks)
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2188 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2189 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2190 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2191 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2192 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2193 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2194 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2195 // Is there space in the current chunk?
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2196 MetaWord* result = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2197
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2198 // 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
2199 // 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
2200 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2201 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2202 assert(current_chunk() != NULL, "should never happen");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2203 inc_allocation_total(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2204 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
2205 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2206 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2207 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2208 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2209
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2210 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2211 result = grow_and_allocate(word_size);
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 (result > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2214 inc_allocation_total(word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2215 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2216 "Head of the list is being allocated");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2217 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2218
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2219 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2220 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2221
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2222 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2223 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2224 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2225 // being in the dictionary alters a chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2226 if (block_freelists()->total_size() == 0) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2227 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
2228 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2229 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2230 curr->verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2231 verify_chunk_size(curr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2232 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2233 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2234 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2235 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2236 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2237
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2238 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2239 assert(is_humongous(chunk->word_size()) ||
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2240 chunk->word_size() == medium_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2241 chunk->word_size() == small_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2242 chunk->word_size() == specialized_chunk_size(),
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2243 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2244 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2245 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2246
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2247 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2248 void SpaceManager::verify_allocation_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2249 // Verification is only guaranteed at a safepoint.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2250 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2251 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
2252 " sum_used_in_chunks_in_use " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2253 this,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2254 allocation_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2255 sum_used_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2256 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2257 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2258 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
2259 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
2260 " vs " SIZE_FORMAT,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2261 allocation_total(), sum_used_in_chunks_in_use()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2262 }
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 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2265
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2266 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2267 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2268 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2269 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2270 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2271 size_t capacity = 0;
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 // 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
2274 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2275 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2276 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2277 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2278 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2279 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2280 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2281 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2282 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2283 block_freelists()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2284 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2285 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2286 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2287 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2288 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2289 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2290 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2291
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2292 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
2293 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2294 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2295
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2296 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
2297 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2298 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2299 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2300
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2301 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2302 void SpaceManager::mangle_freed_chunks() {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2303 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2304 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2305 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2306 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2307 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2308 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2309 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2311 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2312 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2313 #endif // PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2315 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2316
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2317 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
2318 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2319 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2320 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2321 Metaspace* msp = iter.get_next();
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2322 // Sum allocation_total for each metaspace
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2323 if (msp != NULL) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2324 used += msp->used_words(mdtype);
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2325 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2326 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2327 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2328 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2329
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2330 size_t MetaspaceAux::free_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2331 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2332 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2333 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2334 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2335 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2336 free += msp->free_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2337 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2338 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2339 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2340 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2341
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2342 size_t MetaspaceAux::capacity_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2343 size_t capacity = free_chunks_total(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2344 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2345 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2346 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2347 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2348 capacity += msp->capacity_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2349 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2350 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2351 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2352 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2353
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2354 size_t MetaspaceAux::reserved_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2355 size_t reserved = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2356 Metaspace::class_space_list()->virtual_space_total() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2357 Metaspace::space_list()->virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2358 return reserved * 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
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2361 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
2362
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2363 size_t MetaspaceAux::free_chunks_total(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2364 ChunkManager* chunk = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2365 Metaspace::class_space_list()->chunk_manager() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2366 Metaspace::space_list()->chunk_manager();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2367 chunk->slow_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2368 return chunk->free_chunks_total();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2371 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
2372 return free_chunks_total(mdtype) * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2373 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2374
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2375 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
2376 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2377 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2378 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2379 "->" SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2380 "(" SIZE_FORMAT "/" SIZE_FORMAT ")",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2381 prev_metadata_used,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2382 used_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2383 capacity_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2384 reserved_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2385 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2386 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2387 "->" SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2388 "(" SIZE_FORMAT "K/" SIZE_FORMAT "K)",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2389 prev_metadata_used / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2390 used_in_bytes()/ K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2391 capacity_in_bytes()/K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2392 reserved_in_bytes()/ K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2393 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2394
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2395 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2396 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2397
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2398 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2399 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2400 Metaspace::MetadataType ct = Metaspace::ClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2401 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2402
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2403 out->print_cr(" Metaspace total "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2404 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2405 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2406 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
2407 out->print_cr(" data space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2408 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2409 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2410 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
2411 out->print_cr(" class space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2412 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2413 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2414 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
2415 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2416
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2417 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2418 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2419 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2420 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
2421 size_t capacity_bytes = capacity_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2422 size_t used_bytes = used_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2423 size_t free_bytes = free_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2424 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2425 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2426 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
2427 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2428 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2429 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2430 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2431 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2432 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2433 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2434 capacity_bytes / K);
8738
1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation
mgerdin
parents: 8040
diff changeset
2435 // Accounting can only be correct if we got the values during a safepoint
1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation
mgerdin
parents: 8040
diff changeset
2436 assert(!SafepointSynchronize::is_at_safepoint() || used_and_free == capacity_bytes, "Accounting is wrong");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2437 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2438
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2439 // Print total fragmentation for class and data metaspaces separately
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2440 void MetaspaceAux::print_waste(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2441
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2442 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
2443 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
2444 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
2445 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
2446
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2447 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2448 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2449 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2450 if (msp != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2451 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
2452 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
2453 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
2454 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
2455 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
2456 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
2457 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
2458 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
2459
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2460 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
2461 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
2462 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
2463 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
2464 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
2465 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
2466 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
2467 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
2468 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2469 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2470 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
2471 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
2472 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2473 SIZE_FORMAT " medium(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2474 specialized_count, specialized_waste, small_count,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2475 small_waste, medium_count, medium_waste);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2476 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
2477 SIZE_FORMAT " small(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2478 cls_specialized_count, cls_specialized_waste,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2479 cls_small_count, cls_small_waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2480 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2481
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2482 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2483 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2484 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2485 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2486 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2487 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2488 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2489
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2490 void MetaspaceAux::verify_free_chunks() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2491 Metaspace::space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2492 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
2493 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2494
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2495 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2496
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2497 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
2498 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
2499
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2500 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2501 initialize(lock, type);
6725
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2504 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2505 delete _vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2506 delete _class_vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2507 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2508
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2509 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2510 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2511
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2512 #define VIRTUALSPACEMULTIPLIER 2
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 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2515 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2516 int max_alignment = os::vm_page_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2517 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2518
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2519 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2520 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2521 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2522 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2523 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, 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 // 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
2526 // 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
2527 // remainder is the misc code and data chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2528 size_t total = align_size_up(SharedReadOnlySize + SharedReadWriteSize +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2529 SharedMiscDataSize + SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2530 os::vm_allocation_granularity());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2531 size_t word_size = total/wordSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2532 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2533 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2534 // 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
2535 // 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
2536 // the addresses don't conflict)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2537 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2538 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2539 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2540
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2541 // 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
2542 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2543 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2544 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2545 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2546 FileMapInfo::set_current_info(mapinfo);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2547 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2548 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2549 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2550 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2551 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2552
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2553 // Initialize these before initializing the VirtualSpaceList
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2554 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2555 _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
2556 // 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
2557 // 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
2558 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2559 _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
2560 (ClassMetaspaceSize/BytesPerWord)*2);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2561 _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
2562 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2563 // of the boot class loader size.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2564 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
2565 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2566 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2567 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2568 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2570 // 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
2571 // 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
2572 // 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
2573 void Metaspace::initialize_class_space(ReservedSpace rs) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2574 // 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
2575 assert(rs.size() >= ClassMetaspaceSize,
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
mikael
parents: 7447
diff changeset
2576 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
2577 _class_space_list = new VirtualSpaceList(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2578 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2579
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2580 void Metaspace::initialize(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2581 MetaspaceType type) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2582
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2583 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2584 "Metadata VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2585
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2586 _vsm = new SpaceManager(lock, space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2587 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2588 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2589 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2590 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2591 size_t class_word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2592 vsm()->get_initial_chunk_sizes(type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2593 &word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2594 &class_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2595
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2596 assert(class_space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2597 "Class VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2598
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2599 // Allocate SpaceManager for classes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2600 _class_vsm = new SpaceManager(lock, class_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2601 if (_class_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2602 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2603 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2604
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2605 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
2606
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2607 // Allocate chunk for metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2608 Metachunk* new_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2609 space_list()->get_initialization_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2610 vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2611 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
2612 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2613 // 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
2614 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2615 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2616
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2617 // Allocate chunk for class metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2618 Metachunk* class_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2619 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
2620 class_vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2621 if (class_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2622 class_vsm()->add_chunk(class_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2623 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2624 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2625
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2626 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
2627 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2628 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
2629 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2630
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2631 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2632 // DumpSharedSpaces doesn't use class metadata area (yet)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2633 if (mdtype == ClassType && !DumpSharedSpaces) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2634 return class_vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2635 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2636 return vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2637 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2638 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2639
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2640 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
2641 MetaWord* result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2642 MetaspaceGC::set_expand_after_GC(true);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2643 size_t before_inc = MetaspaceGC::capacity_until_GC();
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2644 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
2645 MetaspaceGC::inc_capacity_until_GC(delta_words);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2646 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2647 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
2648 " 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
2649 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2650
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2651 result = allocate(word_size, mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2652
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2653 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2654 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2655
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2656 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2657 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2658 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2659 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
2660 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2662
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2663 size_t Metaspace::used_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2664 // return vsm()->allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2665 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
2666 vsm()->sum_used_in_chunks_in_use(); // includes overhead!
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::free_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2670 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
2671 vsm()->sum_free_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2672 }
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 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2675 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2676 // 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
2677 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2678 // is already counted in some chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2679 size_t Metaspace::capacity_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2680 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
2681 vsm()->sum_capacity_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2682 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2683
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2684 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
2685 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2686 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
2687 // Don't take Heap_lock
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2688 MutexLocker ml(vsm()->lock());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2689 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2690 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2691 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2692 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2693 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2694 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2695 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2696 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2697 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2698 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2699 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2700 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2701 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2702 MutexLocker ml(vsm()->lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2703
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2704 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2705 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2706 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2707 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2708 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2709 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2710 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2711 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2712 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2713 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2714 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2715 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2716 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2717 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2718
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2719 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
2720 bool read_only, MetadataType mdtype, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2721 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2722 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2723 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2724 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2726 // 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
2727 MetaWord* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2728
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2729 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
2730 "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
2731 // 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
2732 // 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
2733 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2734 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2735 if (read_only) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2736 result = loader_data->ro_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2737 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2738 result = loader_data->rw_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2739 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2740 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2741 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2742 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2743 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2745
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2746 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
2747
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2748 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2749 // Try to clean out some memory and retry.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2750 result =
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2751 Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2752 loader_data, 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 is still null, we are out of memory.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2755 if (result == NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2756 if (Verbose && TraceMetadataChunkAllocation) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2757 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
2758 SIZE_FORMAT, word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2759 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
2760 MetaspaceAux::dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2761 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2762 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2763 report_java_out_of_memory("Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2764
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2765 if (JvmtiExport::should_post_resource_exhausted()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2766 JvmtiExport::post_resource_exhausted(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2767 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2768 "Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2769 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2770 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
2771 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2772 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2773 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2774 }
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 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2777 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2778 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2779 vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2780 class_vsm()->print_on(out);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2783
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2784 bool Metaspace::contains(const void * ptr) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2785 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2786 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2787 }
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2788 // 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
2789 // 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
2790 // 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
2791 // 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
2792 // caller in MetaspaceObj::is_metadata() function.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2793 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
2794 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2795
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2796 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2797 vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2798 class_vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2799 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2800
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2801 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2802 if (UseMallocOnly) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2803 // Just print usage for now
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2804 out->print_cr("usage %d", used_words(Metaspace::NonClassType));
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 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2807 vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2808 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
2809 class_vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2810 }