1 /*
2 * Copyright (c) 2012, 2015, 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/gcTimer.hpp"
29 #include "gc/shared/gcTrace.hpp"
30 #include "gc/shared/gcWhen.hpp"
31 #include "runtime/os.hpp"
32 #include "trace/traceBackend.hpp"
33 #include "trace/tracing.hpp"
34 #include "utilities/macros.hpp"
35 #if INCLUDE_ALL_GCS
36 #include "gc/g1/evacuationInfo.hpp"
37 #include "gc/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 EventGCGarbageCollection event(UNTIMED);
46 if (event.should_commit()) {
47 event.set_gcId(_shared_gc_info.gc_id().id());
48 event.set_name(_shared_gc_info.name());
49 event.set_cause((u2) _shared_gc_info.cause());
50 event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
51 event.set_longestPause(_shared_gc_info.longest_pause());
52 event.set_starttime(_shared_gc_info.start_timestamp());
53 event.set_endtime(_shared_gc_info.end_timestamp());
54 event.commit();
55 }
56 }
57
58 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
59 EventGCReferenceStatistics e;
60 if (e.should_commit()) {
61 e.set_gcId(_shared_gc_info.gc_id().id());
62 e.set_type((u1)type);
63 e.set_count(count);
64 e.commit();
65 }
66 }
67
68 void GCTracer::send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype,
69 const MetaspaceChunkFreeListSummary& summary) const {
70 EventMetaspaceChunkFreeListSummary e;
71 if (e.should_commit()) {
72 e.set_gcId(_shared_gc_info.gc_id().id());
73 e.set_when(when);
74 e.set_metadataType(mdtype);
75
76 e.set_specializedChunks(summary.num_specialized_chunks());
77 e.set_specializedChunksTotalSize(summary.specialized_chunks_size_in_bytes());
78
79 e.set_smallChunks(summary.num_small_chunks());
80 e.set_smallChunksTotalSize(summary.small_chunks_size_in_bytes());
81
82 e.set_mediumChunks(summary.num_medium_chunks());
83 e.set_mediumChunksTotalSize(summary.medium_chunks_size_in_bytes());
84
85 e.set_humongousChunks(summary.num_humongous_chunks());
86 e.set_humongousChunksTotalSize(summary.humongous_chunks_size_in_bytes());
87
88 e.commit();
89 }
90 }
91
92 void ParallelOldTracer::send_parallel_old_event() const {
93 EventGCParallelOld e(UNTIMED);
94 if (e.should_commit()) {
95 e.set_gcId(_shared_gc_info.gc_id().id());
96 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
97 e.set_starttime(_shared_gc_info.start_timestamp());
98 e.set_endtime(_shared_gc_info.end_timestamp());
99 e.commit();
100 }
101 }
102
103 void YoungGCTracer::send_young_gc_event() const {
104 EventGCYoungGarbageCollection e(UNTIMED);
105 if (e.should_commit()) {
106 e.set_gcId(_shared_gc_info.gc_id().id());
107 e.set_tenuringThreshold(_tenuring_threshold);
108 e.set_starttime(_shared_gc_info.start_timestamp());
109 e.set_endtime(_shared_gc_info.end_timestamp());
110 e.commit();
111 }
112 }
113
114 bool YoungGCTracer::should_send_promotion_in_new_plab_event() const {
115 return EventPromoteObjectInNewPLAB::is_enabled();
116 }
117
118 bool YoungGCTracer::should_send_promotion_outside_plab_event() const {
119 return EventPromoteObjectOutsidePLAB::is_enabled();
120 }
121
122 void YoungGCTracer::send_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
123 uint age, bool tenured,
124 size_t plab_size) const {
125
126 EventPromoteObjectInNewPLAB event;
127 if (event.should_commit()) {
128 event.set_gcId(_shared_gc_info.gc_id().id());
129 event.set_class(klass);
130 event.set_objectSize(obj_size);
131 event.set_tenured(tenured);
132 event.set_tenuringAge(age);
133 event.set_plabSize(plab_size);
134 event.commit();
135 }
136 }
137
138 void YoungGCTracer::send_promotion_outside_plab_event(Klass* klass, size_t obj_size,
139 uint age, bool tenured) const {
140
141 EventPromoteObjectOutsidePLAB event;
142 if (event.should_commit()) {
143 event.set_gcId(_shared_gc_info.gc_id().id());
144 event.set_class(klass);
145 event.set_objectSize(obj_size);
146 event.set_tenured(tenured);
147 event.set_tenuringAge(age);
148 event.commit();
149 }
150 }
151
152 void OldGCTracer::send_old_gc_event() const {
153 EventGCOldGarbageCollection e(UNTIMED);
154 if (e.should_commit()) {
155 e.set_gcId(_shared_gc_info.gc_id().id());
156 e.set_starttime(_shared_gc_info.start_timestamp());
157 e.set_endtime(_shared_gc_info.end_timestamp());
158 e.commit();
159 }
160 }
161
162 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {
163 TraceStructCopyFailed failed_info;
164 failed_info.set_objectCount(cf_info.failed_count());
165 failed_info.set_firstSize(cf_info.first_size());
166 failed_info.set_smallestSize(cf_info.smallest_size());
167 failed_info.set_totalSize(cf_info.total_size());
168 return failed_info;
169 }
170
171 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
172 EventPromotionFailed e;
173 if (e.should_commit()) {
174 e.set_gcId(_shared_gc_info.gc_id().id());
175 e.set_data(to_trace_struct(pf_info));
176 e.set_thread(pf_info.thread()->thread_id());
177 e.commit();
178 }
179 }
180
181 // Common to CMS and G1
182 void OldGCTracer::send_concurrent_mode_failure_event() {
183 EventConcurrentModeFailure e;
184 if (e.should_commit()) {
185 e.set_gcId(_shared_gc_info.gc_id().id());
186 e.commit();
187 }
188 }
189
190 #if INCLUDE_ALL_GCS
191 void G1NewTracer::send_g1_young_gc_event() {
192 EventGCG1GarbageCollection e(UNTIMED);
193 if (e.should_commit()) {
194 e.set_gcId(_shared_gc_info.gc_id().id());
195 e.set_type(_g1_young_gc_info.type());
196 e.set_starttime(_shared_gc_info.start_timestamp());
197 e.set_endtime(_shared_gc_info.end_timestamp());
198 e.commit();
199 }
200 }
201
202 void G1MMUTracer::send_g1_mmu_event(const GCId& gcId, double timeSlice, double gcTime, double maxTime) {
203 EventGCG1MMU e;
204 if (e.should_commit()) {
205 e.set_gcId(gcId.id());
206 e.set_timeSlice(timeSlice);
207 e.set_gcTime(gcTime);
208 e.set_maxGcTime(maxTime);
209 e.commit();
210 }
211 }
212
213 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
214 EventEvacuationInfo e;
215 if (e.should_commit()) {
216 e.set_gcId(_shared_gc_info.gc_id().id());
217 e.set_cSetRegions(info->collectionset_regions());
218 e.set_cSetUsedBefore(info->collectionset_used_before());
219 e.set_cSetUsedAfter(info->collectionset_used_after());
220 e.set_allocationRegions(info->allocation_regions());
221 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
222 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
223 e.set_bytesCopied(info->bytes_copied());
224 e.set_regionsFreed(info->regions_freed());
225 e.commit();
226 }
227 }
228
229 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
230 EventEvacuationFailed e;
231 if (e.should_commit()) {
232 e.set_gcId(_shared_gc_info.gc_id().id());
233 e.set_data(to_trace_struct(ef_info));
234 e.commit();
235 }
236 }
237
238 static TraceStructG1EvacStats create_g1_evacstats(unsigned gcid, const G1EvacSummary& summary) {
239 TraceStructG1EvacStats s;
240 s.set_gcId(gcid);
241 s.set_allocated(summary.allocated() * HeapWordSize);
242 s.set_wasted(summary.wasted() * HeapWordSize);
243 s.set_used(summary.used() * HeapWordSize);
244 s.set_undoWaste(summary.undo_wasted() * HeapWordSize);
245 s.set_regionEndWaste(summary.region_end_waste() * HeapWordSize);
246 s.set_regionsRefilled(summary.regions_filled());
247 s.set_directAllocated(summary.direct_allocated() * HeapWordSize);
248 s.set_failureUsed(summary.failure_used() * HeapWordSize);
249 s.set_failureWaste(summary.failure_waste() * HeapWordSize);
250 return s;
251 }
252
253 void G1NewTracer::send_young_evacuation_statistics(const G1EvacSummary& summary) const {
254 EventGCG1EvacuationYoungStatistics surv_evt;
255 if (surv_evt.should_commit()) {
256 surv_evt.set_stats(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary));
257 surv_evt.commit();
258 }
259 }
260
261 void G1NewTracer::send_old_evacuation_statistics(const G1EvacSummary& summary) const {
262 EventGCG1EvacuationOldStatistics old_evt;
263 if (old_evt.should_commit()) {
264 old_evt.set_stats(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary));
265 old_evt.commit();
266 }
267 }
268 #endif
269
270 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
271 TraceStructVirtualSpace space;
272 space.set_start((TraceAddress)summary.start());
273 space.set_committedEnd((TraceAddress)summary.committed_end());
274 space.set_committedSize(summary.committed_size());
275 space.set_reservedEnd((TraceAddress)summary.reserved_end());
276 space.set_reservedSize(summary.reserved_size());
277 return space;
278 }
279
280 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
281 TraceStructObjectSpace space;
282 space.set_start((TraceAddress)summary.start());
283 space.set_end((TraceAddress)summary.end());
284 space.set_used(summary.used());
285 space.set_size(summary.size());
286 return space;
287 }
288
289 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
290 GCId _gc_id;
291 GCWhen::Type _when;
292 public:
293 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
294
295 void visit(const GCHeapSummary* heap_summary) const {
296 const VirtualSpaceSummary& heap_space = heap_summary->heap();
297
298 EventGCHeapSummary e;
299 if (e.should_commit()) {
300 e.set_gcId(_gc_id.id());
301 e.set_when((u1)_when);
302 e.set_heapSpace(to_trace_struct(heap_space));
303 e.set_heapUsed(heap_summary->used());
304 e.commit();
305 }
306 }
307
308 void visit(const G1HeapSummary* g1_heap_summary) const {
309 visit((GCHeapSummary*)g1_heap_summary);
310
311 EventG1HeapSummary e;
312 if (e.should_commit()) {
313 e.set_gcId(_gc_id.id());
314 e.set_when((u1)_when);
315 e.set_edenUsedSize(g1_heap_summary->edenUsed());
316 e.set_edenTotalSize(g1_heap_summary->edenCapacity());
317 e.set_survivorUsedSize(g1_heap_summary->survivorUsed());
318 e.commit();
319 }
320 }
321
322 void visit(const PSHeapSummary* ps_heap_summary) const {
323 visit((GCHeapSummary*)ps_heap_summary);
324
325 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
326 const SpaceSummary& old_space = ps_heap_summary->old_space();
327 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
328 const SpaceSummary& eden_space = ps_heap_summary->eden();
329 const SpaceSummary& from_space = ps_heap_summary->from();
330 const SpaceSummary& to_space = ps_heap_summary->to();
331
332 EventPSHeapSummary e;
333 if (e.should_commit()) {
334 e.set_gcId(_gc_id.id());
335 e.set_when((u1)_when);
336
337 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
338 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
339 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
340 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
341 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
342 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
343 e.commit();
344 }
345 }
346 };
347
348 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
349 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
350 heap_summary.accept(&visitor);
351 }
352
353 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
354 TraceStructMetaspaceSizes meta_sizes;
355
356 meta_sizes.set_committed(sizes.committed());
357 meta_sizes.set_used(sizes.used());
358 meta_sizes.set_reserved(sizes.reserved());
359
360 return meta_sizes;
361 }
362
363 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
364 EventMetaspaceSummary e;
365 if (e.should_commit()) {
366 e.set_gcId(_shared_gc_info.gc_id().id());
367 e.set_when((u1) when);
368 e.set_gcThreshold(meta_space_summary.capacity_until_GC());
369 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
370 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
371 e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
372 e.commit();
373 }
374 }
375
376 class PhaseSender : public PhaseVisitor {
377 GCId _gc_id;
378 public:
379 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
380
381 template<typename T>
382 void send_phase(PausePhase* pause) {
383 T event(UNTIMED);
384 if (event.should_commit()) {
385 event.set_gcId(_gc_id.id());
386 event.set_name(pause->name());
387 event.set_starttime(pause->start());
388 event.set_endtime(pause->end());
389 event.commit();
390 }
391 }
392
393 void visit(GCPhase* pause) { ShouldNotReachHere(); }
394 void visit(ConcurrentPhase* pause) { Unimplemented(); }
395 void visit(PausePhase* pause) {
396 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
397
398 switch (pause->level()) {
399 case 0: send_phase<EventGCPhasePause>(pause); break;
400 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
401 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
402 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
403 default: /* Ignore sending this phase */ break;
404 }
405 }
406 };
407
408 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
409 PhaseSender phase_reporter(_shared_gc_info.gc_id());
410
411 TimePartitionPhasesIterator iter(time_partitions);
412 while (iter.has_next()) {
413 GCPhase* phase = iter.next();
414 phase->accept(&phase_reporter);
415 }
416 }