Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/g1/g1HRPrinter.hpp @ 10099:c0000f77bc6d

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Merge
author johnc
date Thu, 11 Apr 2013 10:20:00 -0700
parents 5f6f2615433a
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3778
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1 /*
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2 * Copyright (c) 2011, 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
5f6f2615433a 7049999: G1: Make the G1PrintHeapRegions output consistent and complete
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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_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "gc_implementation/g1/heapRegion.hpp"
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30
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31 #define SKIP_RETIRED_FULL_REGIONS 1
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32
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33 class G1HRPrinter VALUE_OBJ_CLASS_SPEC {
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34 public:
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35 typedef enum {
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36 Alloc,
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37 AllocForce,
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38 Retire,
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39 Reuse,
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40 CSet,
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41 EvacFailure,
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42 Cleanup,
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43 PostCompaction,
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44 Commit,
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45 Uncommit
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46 } ActionType;
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47
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48 typedef enum {
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49 Unset,
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50 Eden,
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51 Survivor,
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52 Old,
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53 SingleHumongous,
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54 StartsHumongous,
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55 ContinuesHumongous
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56 } RegionType;
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57
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58 typedef enum {
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59 StartGC,
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60 EndGC,
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61 StartFullGC,
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62 EndFullGC
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63 } PhaseType;
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64
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65 private:
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66 bool _active;
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67
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68 static const char* action_name(ActionType action);
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69 static const char* region_type_name(RegionType type);
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70 static const char* phase_name(PhaseType phase);
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71
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72 // Print an action event. This version is used in most scenarios and
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73 // only prints the region's bottom. The parameters type and top are
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74 // optional (the "not set" values are Unset and NULL).
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75 static void print(ActionType action, RegionType type,
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76 HeapRegion* hr, HeapWord* top);
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77
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78 // Print an action event. This version prints both the region's
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79 // bottom and end. Used for Commit / Uncommit events.
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80 static void print(ActionType action, HeapWord* bottom, HeapWord* end);
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81
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82 // Print a phase event.
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83 static void print(PhaseType phase, size_t phase_num);
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84
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85 public:
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86 // In some places we iterate over a list in order to generate output
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87 // for the list's elements. By exposing this we can avoid this
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88 // iteration if the printer is not active.
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89 const bool is_active() { return _active; }
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90
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91 // Have to set this explicitly as we have to do this during the
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92 // heap's initialize() method, not in the constructor.
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93 void set_active(bool active) { _active = active; }
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94
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95 // The methods below are convenient wrappers for the print() methods.
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96
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97 void alloc(HeapRegion* hr, RegionType type, bool force = false) {
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98 if (is_active()) {
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99 print((!force) ? Alloc : AllocForce, type, hr, NULL);
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100 }
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101 }
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102
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103 void alloc(RegionType type, HeapRegion* hr, HeapWord* top) {
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104 if (is_active()) {
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105 print(Alloc, type, hr, top);
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106 }
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107 }
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108
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109 void retire(HeapRegion* hr) {
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110 if (is_active()) {
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111 if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) {
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112 print(Retire, Unset, hr, hr->top());
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113 }
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114 }
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115 }
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116
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117 void reuse(HeapRegion* hr) {
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118 if (is_active()) {
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119 print(Reuse, Unset, hr, NULL);
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120 }
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121 }
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122
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123 void cset(HeapRegion* hr) {
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124 if (is_active()) {
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125 print(CSet, Unset, hr, NULL);
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126 }
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127 }
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128
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129 void evac_failure(HeapRegion* hr) {
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130 if (is_active()) {
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131 print(EvacFailure, Unset, hr, NULL);
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132 }
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133 }
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134
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135 void cleanup(HeapRegion* hr) {
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136 if (is_active()) {
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137 print(Cleanup, Unset, hr, NULL);
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138 }
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139 }
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140
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141 void post_compaction(HeapRegion* hr, RegionType type) {
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142 if (is_active()) {
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143 print(PostCompaction, type, hr, hr->top());
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144 }
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145 }
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146
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147 void commit(HeapWord* bottom, HeapWord* end) {
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148 if (is_active()) {
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149 print(Commit, bottom, end);
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150 }
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151 }
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152
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153 void uncommit(HeapWord* bottom, HeapWord* end) {
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154 if (is_active()) {
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155 print(Uncommit, bottom, end);
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156 }
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157 }
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158
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159 void start_gc(bool full, size_t gc_num) {
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160 if (is_active()) {
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161 if (!full) {
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162 print(StartGC, gc_num);
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163 } else {
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164 print(StartFullGC, gc_num);
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165 }
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166 }
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167 }
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168
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169 void end_gc(bool full, size_t gc_num) {
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170 if (is_active()) {
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171 if (!full) {
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172 print(EndGC, gc_num);
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173 } else {
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174 print(EndFullGC, gc_num);
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175 }
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176 }
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177 }
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178
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179 G1HRPrinter() : _active(false) { }
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180 };
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181
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182 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP