1 /*
2 * Copyright (c) 2012, 2018, 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"
26 #include "gc/shared/copyFailedInfo.hpp"
27 #include "gc/shared/gcHeapSummary.hpp"
28 #include "gc/shared/gcId.hpp"
29 #include "gc/shared/gcTimer.hpp"
30 #include "gc/shared/gcTrace.hpp"
31 #include "gc/shared/objectCountEventSender.hpp"
32 #include "gc/shared/referenceProcessorStats.hpp"
33 #include "memory/metaspace/metaspaceEnums.hpp"
34 #include "memory/heapInspection.hpp"
35 #include "memory/resourceArea.hpp"
36 #include "runtime/os.hpp"
37 #include "utilities/globalDefinitions.hpp"
38 #include "utilities/macros.hpp"
39 #include "utilities/ticks.hpp"
40 #if INCLUDE_G1GC
41 #include "gc/g1/g1EvacuationInfo.hpp"
42 #endif
43
44 void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
45 _shared_gc_info.set_cause(cause);
46 _shared_gc_info.set_start_timestamp(timestamp);
47 }
48
49 void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) {
50 report_gc_start_impl(cause, timestamp);
51 }
52
53 void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
54 _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses());
55 _shared_gc_info.set_longest_pause(time_partitions->longest_pause());
56 _shared_gc_info.set_end_timestamp(timestamp);
57
58 send_phase_events(time_partitions);
59 send_garbage_collection_event();
60 }
61
62 void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) {
63 report_gc_end_impl(timestamp, time_partitions);
64 }
65
66 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
67 send_reference_stats_event(REF_SOFT, rps.soft_count());
68 send_reference_stats_event(REF_WEAK, rps.weak_count());
69 send_reference_stats_event(REF_FINAL, rps.final_count());
70 send_reference_stats_event(REF_PHANTOM, rps.phantom_count());
71 }
72
73 #if INCLUDE_SERVICES
74 class ObjectCountEventSenderClosure : public KlassInfoClosure {
75 const double _size_threshold_percentage;
76 const size_t _total_size_in_words;
77 const Ticks _timestamp;
78
79 public:
80 ObjectCountEventSenderClosure(size_t total_size_in_words, const Ticks& timestamp) :
81 _size_threshold_percentage(ObjectCountCutOffPercent / 100),
82 _total_size_in_words(total_size_in_words),
83 _timestamp(timestamp)
84 {}
85
86 virtual void do_cinfo(KlassInfoEntry* entry) {
87 if (should_send_event(entry)) {
88 ObjectCountEventSender::send(entry, _timestamp);
89 }
90 }
91
92 private:
93 bool should_send_event(const KlassInfoEntry* entry) const {
94 double percentage_of_heap = ((double) entry->words()) / _total_size_in_words;
95 return percentage_of_heap >= _size_threshold_percentage;
96 }
97 };
98
99 void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) {
100 assert(is_alive_cl != NULL, "Must supply function to check liveness");
101
102 if (ObjectCountEventSender::should_send_event()) {
103 ResourceMark rm;
104
105 KlassInfoTable cit(false);
106 if (!cit.allocation_failed()) {
107 HeapInspection hi(false, false, false, NULL);
108 hi.populate_table(&cit, is_alive_cl);
109 ObjectCountEventSenderClosure event_sender(cit.size_of_instances_in_words(), Ticks::now());
110 cit.iterate(&event_sender);
111 }
112 }
113 }
114 #endif // INCLUDE_SERVICES
115
116 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
117 send_gc_heap_summary_event(when, heap_summary);
118 }
119
120 void GCTracer::report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& summary) const {
121 send_meta_space_summary_event(when, summary);
122
123 send_metaspace_chunk_free_list_summary(when, metaspace::NonClassType, summary.metaspace_chunk_free_list_summary());
124 if (UseCompressedClassPointers) {
125 send_metaspace_chunk_free_list_summary(when, metaspace::ClassType, summary.class_chunk_free_list_summary());
126 }
127 }
128
129 void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
130 assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported");
131
132 GCTracer::report_gc_end_impl(timestamp, time_partitions);
133 send_young_gc_event();
134
135 _tenuring_threshold = UNSET_TENURING_THRESHOLD;
136 }
137
138 void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) const {
139 send_promotion_failed_event(pf_info);
140 }
141
142 void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) {
143 _tenuring_threshold = tenuring_threshold;
144 }
145
146 bool YoungGCTracer::should_report_promotion_events() const {
147 return should_report_promotion_in_new_plab_event() ||
148 should_report_promotion_outside_plab_event();
149 }
150
151 bool YoungGCTracer::should_report_promotion_in_new_plab_event() const {
152 return should_send_promotion_in_new_plab_event();
153 }
154
155 bool YoungGCTracer::should_report_promotion_outside_plab_event() const {
156 return should_send_promotion_outside_plab_event();
157 }
158
159 void YoungGCTracer::report_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
160 uint age, bool tenured,
161 size_t plab_size) const {
162 send_promotion_in_new_plab_event(klass, obj_size, age, tenured, plab_size);
163 }
164
165 void YoungGCTracer::report_promotion_outside_plab_event(Klass* klass, size_t obj_size,
166 uint age, bool tenured) const {
167 send_promotion_outside_plab_event(klass, obj_size, age, tenured);
168 }
169
170 void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
171 GCTracer::report_gc_end_impl(timestamp, time_partitions);
172 send_old_gc_event();
173 }
174
175 void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
176 OldGCTracer::report_gc_end_impl(timestamp, time_partitions);
177 send_parallel_old_event();
178 }
179
180 void ParallelOldTracer::report_dense_prefix(void* dense_prefix) {
181 _parallel_old_gc_info.report_dense_prefix(dense_prefix);
182 }
183
184 void OldGCTracer::report_concurrent_mode_failure() {
185 send_concurrent_mode_failure_event();
186 }
187
188 #if INCLUDE_G1GC
189 void G1MMUTracer::report_mmu(double time_slice_sec, double gc_time_sec, double max_time_sec) {
190 send_g1_mmu_event(time_slice_sec * MILLIUNITS,
191 gc_time_sec * MILLIUNITS,
192 max_time_sec * MILLIUNITS);
193 }
194
195 void G1NewTracer::report_yc_type(G1YCType type) {
196 _g1_young_gc_info.set_type(type);
197 }
198
199 void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
200 YoungGCTracer::report_gc_end_impl(timestamp, time_partitions);
201 send_g1_young_gc_event();
202 }
203
204 void G1NewTracer::report_evacuation_info(G1EvacuationInfo* info) {
205 send_evacuation_info_event(info);
206 }
207
208 void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) {
209 send_evacuation_failed_event(ef_info);
210 ef_info.reset();
211 }
212
213 void G1NewTracer::report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const {
214 send_young_evacuation_statistics(young_summary);
215 send_old_evacuation_statistics(old_summary);
216 }
217
218 void G1NewTracer::report_basic_ihop_statistics(size_t threshold,
219 size_t target_ccupancy,
220 size_t current_occupancy,
221 size_t last_allocation_size,
222 double last_allocation_duration,
223 double last_marking_length) {
224 send_basic_ihop_statistics(threshold,
225 target_ccupancy,
226 current_occupancy,
227 last_allocation_size,
228 last_allocation_duration,
229 last_marking_length);
230 }
231
232 void G1NewTracer::report_adaptive_ihop_statistics(size_t threshold,
233 size_t internal_target_occupancy,
234 size_t current_occupancy,
235 size_t additional_buffer_size,
236 double predicted_allocation_rate,
237 double predicted_marking_length,
238 bool prediction_active) {
239 send_adaptive_ihop_statistics(threshold,
240 internal_target_occupancy,
241 additional_buffer_size,
242 current_occupancy,
243 predicted_allocation_rate,
244 predicted_marking_length,
245 prediction_active);
246 }
247
248 void G1OldTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
249 _shared_gc_info.set_start_timestamp(timestamp);
250 }
251
252 void G1OldTracer::set_gc_cause(GCCause::Cause cause) {
253 _shared_gc_info.set_cause(cause);
254 }
255
256 #endif // INCLUDE_G1GC