annotate src/share/vm/services/memoryService.hpp @ 8733:9def4075da6d

8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>
author tamao
date Tue, 05 Mar 2013 15:36:56 -0800
parents da91efe96a93
children dbd5837b342f
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1 /*
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2 * Copyright (c) 2003, 2012, 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
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25 #ifndef SHARE_VM_SERVICES_MEMORYSERVICE_HPP
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26 #define SHARE_VM_SERVICES_MEMORYSERVICE_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "memory/generation.hpp"
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30 #include "runtime/handles.hpp"
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31 #include "services/memoryUsage.hpp"
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32 #include "gc_interface/gcCause.hpp"
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33
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34 // Forward declaration
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35 class MemoryPool;
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36 class MemoryManager;
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37 class GCMemoryManager;
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38 class CollectedHeap;
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39 class Generation;
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40 class DefNewGeneration;
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41 class PSYoungGen;
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42 class PSOldGen;
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43 class CodeHeap;
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44 class ContiguousSpace;
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45 class CompactibleFreeListSpace;
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46 class GenCollectedHeap;
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47 class ParallelScavengeHeap;
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48 class G1CollectedHeap;
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49
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50 // VM Monitoring and Management Support
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51
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52 class MemoryService : public AllStatic {
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53 private:
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54 enum {
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55 init_pools_list_size = 10,
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56 init_managers_list_size = 5
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57 };
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58
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59 // index for minor and major generations
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60 enum {
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61 minor = 0,
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62 major = 1,
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63 n_gens = 2
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64 };
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65
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66 static GrowableArray<MemoryPool*>* _pools_list;
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67 static GrowableArray<MemoryManager*>* _managers_list;
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68
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69 // memory managers for minor and major GC statistics
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70 static GCMemoryManager* _major_gc_manager;
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71 static GCMemoryManager* _minor_gc_manager;
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72
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73 // Code heap memory pool
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74 static MemoryPool* _code_heap_pool;
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75
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76 static void add_generation_memory_pool(Generation* gen,
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77 MemoryManager* major_mgr,
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78 MemoryManager* minor_mgr);
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79 static void add_generation_memory_pool(Generation* gen,
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80 MemoryManager* major_mgr) {
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81 add_generation_memory_pool(gen, major_mgr, NULL);
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82 }
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83
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84
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85 static void add_psYoung_memory_pool(PSYoungGen* gen,
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86 MemoryManager* major_mgr,
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87 MemoryManager* minor_mgr);
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88 static void add_psOld_memory_pool(PSOldGen* gen,
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89 MemoryManager* mgr);
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90
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91 static void add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
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92 MemoryManager* major_mgr,
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93 MemoryManager* minor_mgr);
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94 static void add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
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95 MemoryManager* mgr);
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96
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97 static MemoryPool* add_space(ContiguousSpace* space,
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98 const char* name,
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99 bool is_heap,
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100 size_t max_size,
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101 bool support_usage_threshold);
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102 static MemoryPool* add_survivor_spaces(DefNewGeneration* gen,
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103 const char* name,
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104 bool is_heap,
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105 size_t max_size,
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106 bool support_usage_threshold);
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107 static MemoryPool* add_gen(Generation* gen,
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108 const char* name,
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109 bool is_heap,
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110 bool support_usage_threshold);
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111 static MemoryPool* add_cms_space(CompactibleFreeListSpace* space,
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112 const char* name,
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113 bool is_heap,
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114 size_t max_size,
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115 bool support_usage_threshold);
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116
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117 static void add_gen_collected_heap_info(GenCollectedHeap* heap);
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118 static void add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap);
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119 static void add_g1_heap_info(G1CollectedHeap* g1h);
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120
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121 public:
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122 static void set_universe_heap(CollectedHeap* heap);
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123 static void add_code_heap_memory_pool(CodeHeap* heap);
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124
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125 static MemoryPool* get_memory_pool(instanceHandle pool);
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126 static MemoryManager* get_memory_manager(instanceHandle mgr);
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127
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128 static const int num_memory_pools() {
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129 return _pools_list->length();
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130 }
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131 static const int num_memory_managers() {
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132 return _managers_list->length();
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133 }
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134
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135 static MemoryPool* get_memory_pool(int index) {
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136 return _pools_list->at(index);
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137 }
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138
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139 static MemoryManager* get_memory_manager(int index) {
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140 return _managers_list->at(index);
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141 }
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142
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143 static void track_memory_usage();
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144 static void track_code_cache_memory_usage() {
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145 track_memory_pool_usage(_code_heap_pool);
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146 }
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147 static void track_memory_pool_usage(MemoryPool* pool);
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148
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149 static void gc_begin(bool fullGC, bool recordGCBeginTime,
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150 bool recordAccumulatedGCTime,
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151 bool recordPreGCUsage, bool recordPeakUsage);
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152 static void gc_end(bool fullGC, bool recordPostGCUsage,
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153 bool recordAccumulatedGCTime,
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154 bool recordGCEndTime, bool countCollection,
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155 GCCause::Cause cause);
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156
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157
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158 static void oops_do(OopClosure* f);
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159
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160 static bool get_verbose() { return PrintGC; }
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161 static bool set_verbose(bool verbose);
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162
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163 // Create an instance of java/lang/management/MemoryUsage
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164 static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS);
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165
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166 static const GCMemoryManager* get_minor_gc_manager() {
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167 return _minor_gc_manager;
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168 }
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169
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170 static const GCMemoryManager* get_major_gc_manager() {
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171 return _major_gc_manager;
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172 }
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173 };
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174
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175 class TraceMemoryManagerStats : public StackObj {
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176 private:
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177 bool _fullGC;
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178 bool _recordGCBeginTime;
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179 bool _recordPreGCUsage;
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180 bool _recordPeakUsage;
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181 bool _recordPostGCUsage;
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182 bool _recordAccumulatedGCTime;
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183 bool _recordGCEndTime;
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184 bool _countCollection;
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185 GCCause::Cause _cause;
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186 public:
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187 TraceMemoryManagerStats() {}
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188 TraceMemoryManagerStats(bool fullGC,
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189 GCCause::Cause cause,
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190 bool recordGCBeginTime = true,
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191 bool recordPreGCUsage = true,
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192 bool recordPeakUsage = true,
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193 bool recordPostGCUsage = true,
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194 bool recordAccumulatedGCTime = true,
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195 bool recordGCEndTime = true,
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196 bool countCollection = true);
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197
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198 void initialize(bool fullGC,
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199 GCCause::Cause cause,
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200 bool recordGCBeginTime,
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201 bool recordPreGCUsage,
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202 bool recordPeakUsage,
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203 bool recordPostGCUsage,
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204 bool recordAccumulatedGCTime,
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205 bool recordGCEndTime,
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206 bool countCollection);
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207
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208 TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause);
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209 ~TraceMemoryManagerStats();
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210 };
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211
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212 #endif // SHARE_VM_SERVICES_MEMORYSERVICE_HPP