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10405
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1 /*
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2 * Copyright (c) 2012, 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
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25 #include "precompiled.hpp"
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26 #include "gc_implementation/shared/gcHeapSummary.hpp"
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27 #include "gc_implementation/shared/gcTimer.hpp"
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28 #include "gc_implementation/shared/gcTrace.hpp"
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29 #include "gc_implementation/shared/gcWhen.hpp"
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30 #include "gc_implementation/shared/copyFailedInfo.hpp"
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31 #include "trace/tracing.hpp"
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32 #include "trace/traceBackend.hpp"
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33 #if INCLUDE_ALL_GCS
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34 #include "gc_implementation/g1/evacuationInfo.hpp"
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35 #include "gc_implementation/g1/g1YCTypes.hpp"
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36 #endif
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37
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38 // All GC dependencies against the trace framework is contained within this file.
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39
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40 typedef uintptr_t TraceAddress;
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41
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42 void GCTracer::send_garbage_collection_event() const {
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43 EventGCGarbageCollection event(UNTIMED);
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44 if (event.should_commit()) {
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45 event.set_gcId(_shared_gc_info.id());
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46 event.set_name(_shared_gc_info.name());
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47 event.set_cause((u2) _shared_gc_info.cause());
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48 event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
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49 event.set_longestPause(_shared_gc_info.longest_pause());
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50 event.set_starttime(_shared_gc_info.start_timestamp());
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51 event.set_endtime(_shared_gc_info.end_timestamp());
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52 event.commit();
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53 }
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54 }
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55
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56 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
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57 EventGCReferenceStatistics e;
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58 if (e.should_commit()) {
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59 e.set_gcId(_shared_gc_info.id());
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60 e.set_type((u1)type);
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61 e.set_count(count);
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62 e.commit();
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63 }
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64 }
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65
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66 void ParallelOldTracer::send_parallel_old_event() const {
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67 EventGCParallelOld e(UNTIMED);
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68 if (e.should_commit()) {
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69 e.set_gcId(_shared_gc_info.id());
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70 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
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71 e.set_starttime(_shared_gc_info.start_timestamp());
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72 e.set_endtime(_shared_gc_info.end_timestamp());
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73 e.commit();
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74 }
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75 }
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76
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77 void YoungGCTracer::send_young_gc_event() const {
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78 EventGCYoungGarbageCollection e(UNTIMED);
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79 if (e.should_commit()) {
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80 e.set_gcId(_shared_gc_info.id());
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81 e.set_tenuringThreshold(_tenuring_threshold);
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82 e.set_starttime(_shared_gc_info.start_timestamp());
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83 e.set_endtime(_shared_gc_info.end_timestamp());
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84 e.commit();
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85 }
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86 }
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87
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88 void OldGCTracer::send_old_gc_event() const {
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89 EventGCOldGarbageCollection e(UNTIMED);
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90 if (e.should_commit()) {
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91 e.set_gcId(_shared_gc_info.id());
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92 e.set_starttime(_shared_gc_info.start_timestamp());
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93 e.set_endtime(_shared_gc_info.end_timestamp());
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94 e.commit();
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95 }
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96 }
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97
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98 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {
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99 TraceStructCopyFailed failed_info;
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100 failed_info.set_objectCount(cf_info.failed_count());
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101 failed_info.set_firstSize(cf_info.first_size());
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102 failed_info.set_smallestSize(cf_info.smallest_size());
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103 failed_info.set_totalSize(cf_info.total_size());
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104 return failed_info;
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105 }
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106
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107 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
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108 EventPromotionFailed e;
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109 if (e.should_commit()) {
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110 e.set_gcId(_shared_gc_info.id());
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111 e.set_data(to_trace_struct(pf_info));
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112 e.set_thread(pf_info.thread()->thread_id());
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113 e.commit();
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114 }
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115 }
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116
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117 // Common to CMS and G1
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118 void OldGCTracer::send_concurrent_mode_failure_event() {
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119 EventConcurrentModeFailure e;
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120 if (e.should_commit()) {
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121 e.set_gcId(_shared_gc_info.id());
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122 e.commit();
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123 }
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124 }
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125
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126 #if INCLUDE_SERVICES
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127 void GCTracer::send_object_count_after_gc_event(Klass* klass, jlong count, julong total_size) const {
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128 EventObjectCountAfterGC e;
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129 if (e.should_commit()) {
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130 e.set_gcId(_shared_gc_info.id());
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131 e.set_class(klass);
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132 e.set_count(count);
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133 e.set_totalSize(total_size);
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134 e.commit();
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135 }
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136 }
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137 #endif
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138
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139 bool GCTracer::should_send_object_count_after_gc_event() const {
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140 #if INCLUDE_TRACE
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141 return Tracing::is_event_enabled(EventObjectCountAfterGC::eventId);
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142 #else
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143 return false;
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144 #endif
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145 }
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146
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147 #if INCLUDE_ALL_GCS
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148 void G1NewTracer::send_g1_young_gc_event() {
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149 EventGCG1GarbageCollection e(UNTIMED);
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150 if (e.should_commit()) {
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151 e.set_gcId(_shared_gc_info.id());
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152 e.set_type(_g1_young_gc_info.type());
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153 e.set_starttime(_shared_gc_info.start_timestamp());
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154 e.set_endtime(_shared_gc_info.end_timestamp());
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155 e.commit();
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156 }
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157 }
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158
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159 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
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160 EventEvacuationInfo e;
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161 if (e.should_commit()) {
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162 e.set_gcId(_shared_gc_info.id());
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163 e.set_cSetRegions(info->collectionset_regions());
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164 e.set_cSetUsedBefore(info->collectionset_used_before());
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165 e.set_cSetUsedAfter(info->collectionset_used_after());
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166 e.set_allocationRegions(info->allocation_regions());
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167 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
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168 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
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169 e.set_bytesCopied(info->bytes_copied());
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170 e.set_regionsFreed(info->regions_freed());
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171 e.commit();
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172 }
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173 }
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174
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175 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
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176 EventEvacuationFailed e;
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177 if (e.should_commit()) {
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178 e.set_gcId(_shared_gc_info.id());
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179 e.set_data(to_trace_struct(ef_info));
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180 e.commit();
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181 }
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182 }
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183 #endif
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184
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185 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
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186 TraceStructVirtualSpace space;
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187 space.set_start((TraceAddress)summary.start());
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188 space.set_committedEnd((TraceAddress)summary.committed_end());
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189 space.set_committedSize(summary.committed_size());
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190 space.set_reservedEnd((TraceAddress)summary.reserved_end());
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191 space.set_reservedSize(summary.reserved_size());
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192 return space;
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193 }
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194
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195 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
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196 TraceStructObjectSpace space;
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197 space.set_start((TraceAddress)summary.start());
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198 space.set_end((TraceAddress)summary.end());
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199 space.set_used(summary.used());
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200 space.set_size(summary.size());
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201 return space;
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202 }
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203
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204 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
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205 GCId _id;
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206 GCWhen::Type _when;
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207 public:
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208 GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {}
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209
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210 void visit(const GCHeapSummary* heap_summary) const {
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211 const VirtualSpaceSummary& heap_space = heap_summary->heap();
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212
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213 EventGCHeapSummary e;
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214 if (e.should_commit()) {
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215 e.set_gcId(_id);
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216 e.set_when((u1)_when);
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217 e.set_heapSpace(to_trace_struct(heap_space));
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218 e.set_heapUsed(heap_summary->used());
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219 e.commit();
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220 }
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221 }
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222
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223 void visit(const PSHeapSummary* ps_heap_summary) const {
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224 visit((GCHeapSummary*)ps_heap_summary);
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225
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226 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
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227 const SpaceSummary& old_space = ps_heap_summary->old_space();
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228 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
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229 const SpaceSummary& eden_space = ps_heap_summary->eden();
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230 const SpaceSummary& from_space = ps_heap_summary->from();
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231 const SpaceSummary& to_space = ps_heap_summary->to();
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232
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233 EventPSHeapSummary e;
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234 if (e.should_commit()) {
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235 e.set_gcId(_id);
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236 e.set_when((u1)_when);
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237
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238 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
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239 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
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240 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
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241 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
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242 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
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243 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
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244 e.commit();
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245 }
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246 }
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247 };
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248
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249 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
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250 GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when);
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251 heap_summary.accept(&visitor);
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252 }
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253
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254 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
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255 TraceStructMetaspaceSizes meta_sizes;
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256
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257 meta_sizes.set_capacity(sizes.capacity());
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258 meta_sizes.set_used(sizes.used());
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259 meta_sizes.set_reserved(sizes.reserved());
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260
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261 return meta_sizes;
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262 }
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263
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264 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
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265 EventMetaspaceSummary e;
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266 if (e.should_commit()) {
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267 e.set_gcId(_shared_gc_info.id());
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268 e.set_when((u1) when);
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269 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
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270 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
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271 e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
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272 e.commit();
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273 }
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274 }
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275
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276 class PhaseSender : public PhaseVisitor {
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277 GCId _gc_id;
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278 public:
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279 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
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280
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281 template<typename T>
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282 void send_phase(PausePhase* pause) {
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283 T event(UNTIMED);
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284 if (event.should_commit()) {
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285 event.set_gcId(_gc_id);
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286 event.set_name(pause->name());
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287 event.set_starttime(pause->start());
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288 event.set_endtime(pause->end());
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289 event.commit();
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290 }
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291 }
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292
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293 void visit(GCPhase* pause) { ShouldNotReachHere(); }
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294 void visit(ConcurrentPhase* pause) { Unimplemented(); }
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295 void visit(PausePhase* pause) {
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296 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
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297
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298 switch (pause->level()) {
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299 case 0: send_phase<EventGCPhasePause>(pause); break;
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300 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
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301 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
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302 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
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303 default: /* Ignore sending this phase */ break;
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304 }
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305 }
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306
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307 #undef send_phase
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308 };
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309
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310 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
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311 PhaseSender phase_reporter(_shared_gc_info.id());
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312
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313 TimePartitionPhasesIterator iter(time_partitions);
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314 while (iter.has_next()) {
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315 GCPhase* phase = iter.next();
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316 phase->accept(&phase_reporter);
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317 }
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318 }
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