Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/gcTrace.cpp @ 13400:86e6d691f2e1
8028128: Add a type safe alternative for working with counter based data
Reviewed-by: dholmes, egahlin
| author | mgronlun |
|---|---|
| date | Sat, 23 Nov 2013 12:25:13 +0100 |
| parents | 6aa440bc1125 |
| children | 9fdaa79b0c27 |
| rev | line source |
|---|---|
| 10405 | 1 /* |
| 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "precompiled.hpp" | |
|
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26 #include "gc_implementation/shared/copyFailedInfo.hpp" |
| 10405 | 27 #include "gc_implementation/shared/gcHeapSummary.hpp" |
| 28 #include "gc_implementation/shared/gcTimer.hpp" | |
| 29 #include "gc_implementation/shared/gcTrace.hpp" | |
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30 #include "gc_implementation/shared/objectCountEventSender.hpp" |
| 10405 | 31 #include "memory/heapInspection.hpp" |
| 32 #include "memory/referenceProcessorStats.hpp" | |
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33 #include "runtime/os.hpp" |
| 10405 | 34 #include "utilities/globalDefinitions.hpp" |
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35 #include "utilities/ticks.inline.hpp" |
| 10405 | 36 |
| 37 #if INCLUDE_ALL_GCS | |
| 38 #include "gc_implementation/g1/evacuationInfo.hpp" | |
| 39 #endif | |
| 40 | |
| 41 #define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?") | |
| 42 #define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?") | |
| 43 | |
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44 static GCId GCTracer_next_gc_id = 0; |
| 10405 | 45 static GCId create_new_gc_id() { |
| 46 return GCTracer_next_gc_id++; | |
| 47 } | |
| 48 | |
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49 void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) { |
| 10405 | 50 assert_unset_gc_id(); |
| 51 | |
| 52 GCId gc_id = create_new_gc_id(); | |
| 53 _shared_gc_info.set_id(gc_id); | |
| 54 _shared_gc_info.set_cause(cause); | |
| 55 _shared_gc_info.set_start_timestamp(timestamp); | |
| 56 } | |
| 57 | |
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58 void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) { |
| 10405 | 59 assert_unset_gc_id(); |
| 60 | |
| 61 report_gc_start_impl(cause, timestamp); | |
| 62 } | |
| 63 | |
| 64 bool GCTracer::has_reported_gc_start() const { | |
| 65 return _shared_gc_info.id() != SharedGCInfo::UNSET_GCID; | |
| 66 } | |
| 67 | |
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68 void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 69 assert_set_gc_id(); |
| 70 | |
| 71 _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses()); | |
| 72 _shared_gc_info.set_longest_pause(time_partitions->longest_pause()); | |
| 73 _shared_gc_info.set_end_timestamp(timestamp); | |
| 74 | |
| 75 send_phase_events(time_partitions); | |
| 76 send_garbage_collection_event(); | |
| 77 } | |
| 78 | |
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79 void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 80 assert_set_gc_id(); |
| 81 | |
| 82 report_gc_end_impl(timestamp, time_partitions); | |
| 83 | |
| 84 _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID); | |
| 85 } | |
| 86 | |
| 87 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const { | |
| 88 assert_set_gc_id(); | |
| 89 | |
| 90 send_reference_stats_event(REF_SOFT, rps.soft_count()); | |
| 91 send_reference_stats_event(REF_WEAK, rps.weak_count()); | |
| 92 send_reference_stats_event(REF_FINAL, rps.final_count()); | |
| 93 send_reference_stats_event(REF_PHANTOM, rps.phantom_count()); | |
| 94 } | |
| 95 | |
| 96 #if INCLUDE_SERVICES | |
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97 class ObjectCountEventSenderClosure : public KlassInfoClosure { |
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98 const GCId _gc_id; |
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99 const double _size_threshold_percentage; |
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100 const size_t _total_size_in_words; |
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101 const Ticks _timestamp; |
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102 |
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103 public: |
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104 ObjectCountEventSenderClosure(GCId gc_id, size_t total_size_in_words, const Ticks& timestamp) : |
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105 _gc_id(gc_id), |
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106 _size_threshold_percentage(ObjectCountCutOffPercent / 100), |
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107 _total_size_in_words(total_size_in_words), |
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108 _timestamp(timestamp) |
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109 {} |
| 10405 | 110 |
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111 virtual void do_cinfo(KlassInfoEntry* entry) { |
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112 if (should_send_event(entry)) { |
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113 ObjectCountEventSender::send(entry, _gc_id, _timestamp); |
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114 } |
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115 } |
| 10405 | 116 |
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117 private: |
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118 bool should_send_event(const KlassInfoEntry* entry) const { |
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119 double percentage_of_heap = ((double) entry->words()) / _total_size_in_words; |
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120 return percentage_of_heap >= _size_threshold_percentage; |
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121 } |
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122 }; |
| 10405 | 123 |
| 124 void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) { | |
| 125 assert_set_gc_id(); | |
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126 assert(is_alive_cl != NULL, "Must supply function to check liveness"); |
| 10405 | 127 |
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128 if (ObjectCountEventSender::should_send_event()) { |
| 10405 | 129 ResourceMark rm; |
| 130 | |
| 131 KlassInfoTable cit(false); | |
| 132 if (!cit.allocation_failed()) { | |
| 133 HeapInspection hi(false, false, false, NULL); | |
| 134 hi.populate_table(&cit, is_alive_cl); | |
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135 ObjectCountEventSenderClosure event_sender(_shared_gc_info.id(), cit.size_of_instances_in_words(), Ticks::now()); |
| 10405 | 136 cit.iterate(&event_sender); |
| 137 } | |
| 138 } | |
| 139 } | |
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140 #endif // INCLUDE_SERVICES |
| 10405 | 141 |
| 142 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const { | |
| 143 assert_set_gc_id(); | |
| 144 | |
| 145 send_gc_heap_summary_event(when, heap_summary); | |
| 146 send_meta_space_summary_event(when, meta_space_summary); | |
| 147 } | |
| 148 | |
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149 void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 150 assert_set_gc_id(); |
| 151 assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported"); | |
| 152 | |
| 153 GCTracer::report_gc_end_impl(timestamp, time_partitions); | |
| 154 send_young_gc_event(); | |
| 155 | |
| 156 _tenuring_threshold = UNSET_TENURING_THRESHOLD; | |
| 157 } | |
| 158 | |
| 159 void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) { | |
| 160 assert_set_gc_id(); | |
| 161 | |
| 162 send_promotion_failed_event(pf_info); | |
| 163 } | |
| 164 | |
| 165 void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) { | |
| 166 _tenuring_threshold = tenuring_threshold; | |
| 167 } | |
| 168 | |
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169 void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 170 assert_set_gc_id(); |
| 171 | |
| 172 GCTracer::report_gc_end_impl(timestamp, time_partitions); | |
| 173 send_old_gc_event(); | |
| 174 } | |
| 175 | |
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176 void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 177 assert_set_gc_id(); |
| 178 | |
| 179 OldGCTracer::report_gc_end_impl(timestamp, time_partitions); | |
| 180 send_parallel_old_event(); | |
| 181 } | |
| 182 | |
| 183 void ParallelOldTracer::report_dense_prefix(void* dense_prefix) { | |
| 184 assert_set_gc_id(); | |
| 185 | |
| 186 _parallel_old_gc_info.report_dense_prefix(dense_prefix); | |
| 187 } | |
| 188 | |
| 189 void OldGCTracer::report_concurrent_mode_failure() { | |
| 190 assert_set_gc_id(); | |
| 191 | |
| 192 send_concurrent_mode_failure_event(); | |
| 193 } | |
| 194 | |
| 195 #if INCLUDE_ALL_GCS | |
| 196 void G1NewTracer::report_yc_type(G1YCType type) { | |
| 197 assert_set_gc_id(); | |
| 198 | |
| 199 _g1_young_gc_info.set_type(type); | |
| 200 } | |
| 201 | |
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202 void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { |
| 10405 | 203 assert_set_gc_id(); |
| 204 | |
| 205 YoungGCTracer::report_gc_end_impl(timestamp, time_partitions); | |
| 206 send_g1_young_gc_event(); | |
| 207 } | |
| 208 | |
| 209 void G1NewTracer::report_evacuation_info(EvacuationInfo* info) { | |
| 210 assert_set_gc_id(); | |
| 211 | |
| 212 send_evacuation_info_event(info); | |
| 213 } | |
| 214 | |
| 215 void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) { | |
| 216 assert_set_gc_id(); | |
| 217 | |
| 218 send_evacuation_failed_event(ef_info); | |
| 219 ef_info.reset(); | |
| 220 } | |
| 221 #endif |