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"
26 #if INCLUDE_JFR
27 #include "jfr/jfrEvents.hpp"
28 #endif
29 #include "gc_implementation/shared/gcHeapSummary.hpp"
30 #include "gc_implementation/shared/gcTimer.hpp"
31 #include "gc_implementation/shared/gcTrace.hpp"
32 #include "gc_implementation/shared/gcWhen.hpp"
33 #include "gc_implementation/shared/copyFailedInfo.hpp"
34 #include "runtime/os.hpp"
35 #if INCLUDE_ALL_GCS
36 #include "gc_implementation/g1/evacuationInfo.hpp"
37 #include "gc_implementation/g1/g1YCTypes.hpp"
38 #endif
39
40 // All GC dependencies against the trace framework is contained within this file.
41
42 typedef uintptr_t TraceAddress;
43
44 void GCTracer::send_garbage_collection_event() const {
45 #if INCLUDE_JFR
46 EventGarbageCollection event(UNTIMED);
47 if (event.should_commit()) {
48 event.set_gcId(_shared_gc_info.gc_id().id());
49 event.set_name(_shared_gc_info.name());
50 event.set_cause((u2) _shared_gc_info.cause());
51 event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
52 event.set_longestPause(_shared_gc_info.longest_pause());
53 event.set_starttime(_shared_gc_info.start_timestamp());
54 event.set_endtime(_shared_gc_info.end_timestamp());
55 event.commit();
56 }
57 #endif
58 }
59
60 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
61 #if INCLUDE_JFR
62 EventGCReferenceStatistics e;
63 if (e.should_commit()) {
64 e.set_gcId(_shared_gc_info.gc_id().id());
65 e.set_type((u1)type);
66 e.set_count(count);
67 e.commit();
68 }
69 #endif
70 }
71
72 void GCTracer::send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype,
73 const MetaspaceChunkFreeListSummary& summary) const {
74 #if INCLUDE_JFR
75 EventMetaspaceChunkFreeListSummary e;
76 if (e.should_commit()) {
77 e.set_gcId(_shared_gc_info.gc_id().id());
78 e.set_when(when);
79 e.set_metadataType(mdtype);
80
81 e.set_specializedChunks(summary.num_specialized_chunks());
82 e.set_specializedChunksTotalSize(summary.specialized_chunks_size_in_bytes());
83
84 e.set_smallChunks(summary.num_small_chunks());
85 e.set_smallChunksTotalSize(summary.small_chunks_size_in_bytes());
86
87 e.set_mediumChunks(summary.num_medium_chunks());
88 e.set_mediumChunksTotalSize(summary.medium_chunks_size_in_bytes());
89
90 e.set_humongousChunks(summary.num_humongous_chunks());
91 e.set_humongousChunksTotalSize(summary.humongous_chunks_size_in_bytes());
92
93 e.commit();
94 }
95 #endif
96 }
97
98 void ParallelOldTracer::send_parallel_old_event() const {
99 #if INCLUDE_JFR
100 EventParallelOldGarbageCollection e(UNTIMED);
101 if (e.should_commit()) {
102 e.set_gcId(_shared_gc_info.gc_id().id());
103 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
104 e.set_starttime(_shared_gc_info.start_timestamp());
105 e.set_endtime(_shared_gc_info.end_timestamp());
106 e.commit();
107 }
108 #endif
109 }
110
111 void YoungGCTracer::send_young_gc_event() const {
112 #if INCLUDE_JFR
113 EventYoungGarbageCollection e(UNTIMED);
114 if (e.should_commit()) {
115 e.set_gcId(_shared_gc_info.gc_id().id());
116 e.set_tenuringThreshold(_tenuring_threshold);
117 e.set_starttime(_shared_gc_info.start_timestamp());
118 e.set_endtime(_shared_gc_info.end_timestamp());
119 e.commit();
120 }
121 #endif
122 }
123
124 bool YoungGCTracer::should_send_promotion_in_new_plab_event() const {
125 #if INCLUDE_JFR
126 return EventPromoteObjectInNewPLAB::is_enabled();
127 #else
128 return false;
129 #endif
130 }
131
132 bool YoungGCTracer::should_send_promotion_outside_plab_event() const {
133 #if INCLUDE_JFR
134 return EventPromoteObjectOutsidePLAB::is_enabled();
135 #else
136 return false;
137 #endif
138 }
139
140 void YoungGCTracer::send_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
141 uint age, bool tenured,
142 size_t plab_size) const {
143 #if INCLUDE_JFR
144 EventPromoteObjectInNewPLAB event;
145 if (event.should_commit()) {
146 event.set_gcId(_shared_gc_info.gc_id().id());
147 event.set_objectClass(klass);
148 event.set_objectSize(obj_size);
149 event.set_tenured(tenured);
150 event.set_tenuringAge(age);
151 event.set_plabSize(plab_size);
152 event.commit();
153 }
154 #endif
155 }
156
157 void YoungGCTracer::send_promotion_outside_plab_event(Klass* klass, size_t obj_size,
158 uint age, bool tenured) const {
159 #if INCLUDE_JFR
160 EventPromoteObjectOutsidePLAB event;
161 if (event.should_commit()) {
162 event.set_gcId(_shared_gc_info.gc_id().id());
163 event.set_objectClass(klass);
164 event.set_objectSize(obj_size);
165 event.set_tenured(tenured);
166 event.set_tenuringAge(age);
167 event.commit();
168 }
169 #endif
170 }
171
172 void OldGCTracer::send_old_gc_event() const {
173 #if INCLUDE_JFR
174 EventOldGarbageCollection e(UNTIMED);
175 if (e.should_commit()) {
176 e.set_gcId(_shared_gc_info.gc_id().id());
177 e.set_starttime(_shared_gc_info.start_timestamp());
178 e.set_endtime(_shared_gc_info.end_timestamp());
179 e.commit();
180 }
181 #endif
182 }
183
184 #if INCLUDE_JFR
185 static JfrStructCopyFailed to_struct(const CopyFailedInfo& cf_info) {
186 JfrStructCopyFailed failed_info;
187 failed_info.set_objectCount(cf_info.failed_count());
188 failed_info.set_firstSize(cf_info.first_size());
189 failed_info.set_smallestSize(cf_info.smallest_size());
190 failed_info.set_totalSize(cf_info.total_size());
191 return failed_info;
192 }
193 #endif
194
195 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
196 #if INCLUDE_JFR
197 EventPromotionFailed e;
198 if (e.should_commit()) {
199 e.set_gcId(_shared_gc_info.gc_id().id());
200 e.set_promotionFailed(to_struct(pf_info));
201 e.set_thread(pf_info.thread()->thread_id());
202 e.commit();
203 }
204 #endif
205 }
206
207 // Common to CMS and G1
208 void OldGCTracer::send_concurrent_mode_failure_event() {
209 #if INCLUDE_JFR
210 EventConcurrentModeFailure e;
211 if (e.should_commit()) {
212 e.set_gcId(_shared_gc_info.gc_id().id());
213 e.commit();
214 }
215 #endif
216 }
217
218 #if INCLUDE_ALL_GCS
219 void G1NewTracer::send_g1_young_gc_event() {
220 #if INCLUDE_JFR
221 EventG1GarbageCollection e(UNTIMED);
222 if (e.should_commit()) {
223 e.set_gcId(_shared_gc_info.gc_id().id());
224 e.set_type(_g1_young_gc_info.type());
225 e.set_starttime(_shared_gc_info.start_timestamp());
226 e.set_endtime(_shared_gc_info.end_timestamp());
227 e.commit();
228 }
229 #endif
230 }
231
232 void G1MMUTracer::send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms) {
233 #if INCLUDE_JFR
234 EventG1MMU e;
235 if (e.should_commit()) {
236 e.set_gcId(GCId::peek().id());
237 e.set_timeSlice((s8)time_slice_ms);
238 e.set_gcTime((s8)gc_time_ms);
239 e.set_pauseTarget((s8)max_time_ms);
240 e.commit();
241 }
242 #endif
243 }
244
245 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
246 #if INCLUDE_JFR
247 EventEvacuationInformation e;
248 if (e.should_commit()) {
249 e.set_gcId(_shared_gc_info.gc_id().id());
250 e.set_cSetRegions(info->collectionset_regions());
251 e.set_cSetUsedBefore(info->collectionset_used_before());
252 e.set_cSetUsedAfter(info->collectionset_used_after());
253 e.set_allocationRegions(info->allocation_regions());
254 e.set_allocationRegionsUsedBefore(info->alloc_regions_used_before());
255 e.set_allocationRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
256 e.set_bytesCopied(info->bytes_copied());
257 e.set_regionsFreed(info->regions_freed());
258 e.commit();
259 }
260 #endif
261 }
262
263 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
264 #if INCLUDE_JFR
265 EventEvacuationFailed e;
266 if (e.should_commit()) {
267 e.set_gcId(_shared_gc_info.gc_id().id());
268 e.set_evacuationFailed(to_struct(ef_info));
269 e.commit();
270 }
271 #endif
272 }
273
274 // XXX
275 //static JfrStructG1EvacuationStatistics
276 //create_g1_evacstats(unsigned gcid, const G1EvacSummary& summary) {
277 // JfrStructG1EvacuationStatistics s;
278 // s.set_gcId(gcid);
279 // s.set_allocated(summary.allocated() * HeapWordSize);
280 // s.set_wasted(summary.wasted() * HeapWordSize);
281 // s.set_used(summary.used() * HeapWordSize);
282 // s.set_undoWaste(summary.undo_wasted() * HeapWordSize);
283 // s.set_regionEndWaste(summary.region_end_waste() * HeapWordSize);
284 // s.set_regionsRefilled(summary.regions_filled());
285 // s.set_directAllocated(summary.direct_allocated() * HeapWordSize);
286 // s.set_failureUsed(summary.failure_used() * HeapWordSize);
287 // s.set_failureWaste(summary.failure_waste() * HeapWordSize);
288 // return s;
289 //}
290 //
291 //void G1NewTracer::send_young_evacuation_statistics(const G1EvacSummary& summary) const {
292 // EventG1EvacuationYoungStatistics surv_evt;
293 // if (surv_evt.should_commit()) {
294 // surv_evt.set_statistics(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary));
295 // surv_evt.commit();
296 // }
297 //}
298 //
299 //void G1NewTracer::send_old_evacuation_statistics(const G1EvacSummary& summary) const {
300 // EventG1EvacuationOldStatistics old_evt;
301 // if (old_evt.should_commit()) {
302 // old_evt.set_statistics(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary));
303 // old_evt.commit();
304 // }
305 //}
306 //
307 //void G1NewTracer::send_basic_ihop_statistics(size_t threshold,
308 // size_t target_occupancy,
309 // size_t current_occupancy,
310 // size_t last_allocation_size,
311 // double last_allocation_duration,
312 // double last_marking_length) {
313 // EventG1BasicIHOP evt;
314 // if (evt.should_commit()) {
315 // evt.set_gcId(_shared_gc_info.gc_id().id());
316 // evt.set_threshold(threshold);
317 // evt.set_targetOccupancy(target_occupancy);
318 // evt.set_thresholdPercentage(target_occupancy > 0 ? ((double)threshold / target_occupancy) : 0.0);
319 // evt.set_currentOccupancy(current_occupancy);
320 // evt.set_recentMutatorAllocationSize(last_allocation_size);
321 // evt.set_recentMutatorDuration(last_allocation_duration * MILLIUNITS);
322 // evt.set_recentAllocationRate(last_allocation_duration != 0.0 ? last_allocation_size / last_allocation_duration : 0.0);
323 // evt.set_lastMarkingDuration(last_marking_length * MILLIUNITS);
324 // evt.commit();
325 // }
326 //}
327 //
328 //void G1NewTracer::send_adaptive_ihop_statistics(size_t threshold,
329 // size_t internal_target_occupancy,
330 // size_t current_occupancy,
331 // size_t additional_buffer_size,
332 // double predicted_allocation_rate,
333 // double predicted_marking_length,
334 // bool prediction_active) {
335 // EventG1AdaptiveIHOP evt;
336 // if (evt.should_commit()) {
337 // evt.set_gcId(_shared_gc_info.gc_id().id());
338 // evt.set_threshold(threshold);
339 // evt.set_thresholdPercentage(internal_target_occupancy > 0 ? ((double)threshold / internal_target_occupancy) : 0.0);
340 // evt.set_ihopTargetOccupancy(internal_target_occupancy);
341 // evt.set_currentOccupancy(current_occupancy);
342 // evt.set_additionalBufferSize(additional_buffer_size);
343 // evt.set_predictedAllocationRate(predicted_allocation_rate);
344 // evt.set_predictedMarkingDuration(predicted_marking_length * MILLIUNITS);
345 // evt.set_predictionActive(prediction_active);
346 // evt.commit();
347 // }
348 //}
349
350 #endif // INCLUDE_ALL_GCS
351
352 #if INCLUDE_JFR
353 static JfrStructVirtualSpace to_struct(const VirtualSpaceSummary& summary) {
354 JfrStructVirtualSpace space;
355 space.set_start((TraceAddress)summary.start());
356 space.set_committedEnd((TraceAddress)summary.committed_end());
357 space.set_committedSize(summary.committed_size());
358 space.set_reservedEnd((TraceAddress)summary.reserved_end());
359 space.set_reservedSize(summary.reserved_size());
360 return space;
361 }
362
363 static JfrStructObjectSpace to_struct(const SpaceSummary& summary) {
364 JfrStructObjectSpace space;
365 space.set_start((TraceAddress)summary.start());
366 space.set_end((TraceAddress)summary.end());
367 space.set_used(summary.used());
368 space.set_size(summary.size());
369 return space;
370 }
371 #endif
372
373 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
374 GCId _gc_id;
375 GCWhen::Type _when;
376 public:
377 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
378
379 void visit(const GCHeapSummary* heap_summary) const {
380 #if INCLUDE_JFR
381 const VirtualSpaceSummary& heap_space = heap_summary->heap();
382
383 EventGCHeapSummary e;
384 if (e.should_commit()) {
385 e.set_gcId(_gc_id.id());
386 e.set_when((u1)_when);
387 e.set_heapSpace(to_struct(heap_space));
388 e.set_heapUsed(heap_summary->used());
389 e.commit();
390 }
391 #endif
392 }
393
394 void visit(const G1HeapSummary* g1_heap_summary) const {
395 #if INCLUDE_JFR
396 visit((GCHeapSummary*)g1_heap_summary);
397
398 EventG1HeapSummary e;
399 if (e.should_commit()) {
400 e.set_gcId(_gc_id.id());
401 e.set_when((u1)_when);
402 e.set_edenUsedSize(g1_heap_summary->edenUsed());
403 e.set_edenTotalSize(g1_heap_summary->edenCapacity());
404 e.set_survivorUsedSize(g1_heap_summary->survivorUsed());
405 e.set_numberOfRegions(g1_heap_summary->numberOfRegions());
406 e.commit();
407 }
408 #endif
409 }
410
411 void visit(const PSHeapSummary* ps_heap_summary) const {
412 #if INCLUDE_JFR
413 visit((GCHeapSummary*)ps_heap_summary);
414
415 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
416 const SpaceSummary& old_space = ps_heap_summary->old_space();
417 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
418 const SpaceSummary& eden_space = ps_heap_summary->eden();
419 const SpaceSummary& from_space = ps_heap_summary->from();
420 const SpaceSummary& to_space = ps_heap_summary->to();
421
422 EventPSHeapSummary e;
423 if (e.should_commit()) {
424 e.set_gcId(_gc_id.id());
425 e.set_when((u1)_when);
426
427 e.set_oldSpace(to_struct(ps_heap_summary->old()));
428 e.set_oldObjectSpace(to_struct(ps_heap_summary->old_space()));
429 e.set_youngSpace(to_struct(ps_heap_summary->young()));
430 e.set_edenSpace(to_struct(ps_heap_summary->eden()));
431 e.set_fromSpace(to_struct(ps_heap_summary->from()));
432 e.set_toSpace(to_struct(ps_heap_summary->to()));
433 e.commit();
434 }
435 #endif
436 }
437 };
438
439 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
440 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
441 heap_summary.accept(&visitor);
442 }
443
444 #if INCLUDE_JFR
445 static JfrStructMetaspaceSizes to_struct(const MetaspaceSizes& sizes) {
446 JfrStructMetaspaceSizes meta_sizes;
447
448 meta_sizes.set_committed(sizes.committed());
449 meta_sizes.set_used(sizes.used());
450 meta_sizes.set_reserved(sizes.reserved());
451
452 return meta_sizes;
453 }
454 #endif
455
456 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
457 #if INCLUDE_JFR
458 EventMetaspaceSummary e;
459 if (e.should_commit()) {
460 e.set_gcId(_shared_gc_info.gc_id().id());
461 e.set_when((u1) when);
462 e.set_gcThreshold(meta_space_summary.capacity_until_GC());
463 e.set_metaspace(to_struct(meta_space_summary.meta_space()));
464 e.set_dataSpace(to_struct(meta_space_summary.data_space()));
465 e.set_classSpace(to_struct(meta_space_summary.class_space()));
466 e.commit();
467 }
468 #endif
469 }
470
471 class PhaseSender : public PhaseVisitor {
472 GCId _gc_id;
473 public:
474 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
475
476 template<typename T>
477 void send_phase(GCPhase* phase) {
478 #if INCLUDE_JFR
479 T event(UNTIMED);
480 if (event.should_commit()) {
481 event.set_gcId(_gc_id.id());
482 event.set_name(phase->name());
483 event.set_starttime(phase->start());
484 event.set_endtime(phase->end());
485 event.commit();
486 }
487 #endif
488 }
489
490 void visit(GCPhase* pause) { ShouldNotReachHere(); }
491 void visit(ConcurrentPhase* pause) { Unimplemented(); }
492 void visit(PausePhase* pause) {
493 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
494
495 #if INCLUDE_JFR
496 switch (pause->level()) {
497 case 0: send_phase<EventGCPhasePause>(pause); break;
498 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
499 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
500 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
501 default: /* Ignore sending this phase */ break;
502 }
503 #endif
504 }
505 };
506
507 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
508 PhaseSender phase_reporter(_shared_gc_info.gc_id());
509
510 TimePartitionPhasesIterator iter(time_partitions);
511 while (iter.has_next()) {
512 GCPhase* phase = iter.next();
513 phase->accept(&phase_reporter);
514 }
515 }