Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/gcTrace.cpp @ 14313:44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
Summary: Made the flags Min- and MaxHeapFreeRatio manageable, and implemented support for these flags in ParallalGC.
Reviewed-by: sla, mgerdin, brutisso
author | jwilhelm |
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date | Wed, 29 Jan 2014 23:17:05 +0100 |
parents | 86e6d691f2e1 |
children | 9fdaa79b0c27 |
rev | line source |
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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 |