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 #include "gc_implementation/shared/gcHeapSummary.hpp"
27 #include "gc_implementation/shared/gcTimer.hpp"
28 #include "gc_implementation/shared/gcTrace.hpp"
29 #include "gc_implementation/shared/gcWhen.hpp"
30 #include "gc_implementation/shared/copyFailedInfo.hpp"
31 #include "runtime/os.hpp"
32 #include "trace/tracing.hpp"
33 #include "trace/traceBackend.hpp"
34 #include "utilities/macros.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 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 G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
203 EventEvacuationInfo e;
204 if (e.should_commit()) {
205 e.set_gcId(_shared_gc_info.gc_id().id());
206 e.set_cSetRegions(info->collectionset_regions());
207 e.set_cSetUsedBefore(info->collectionset_used_before());
208 e.set_cSetUsedAfter(info->collectionset_used_after());
209 e.set_allocationRegions(info->allocation_regions());
210 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
211 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
212 e.set_bytesCopied(info->bytes_copied());
213 e.set_regionsFreed(info->regions_freed());
214 e.commit();
215 }
216 }
217
218 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
219 EventEvacuationFailed e;
220 if (e.should_commit()) {
221 e.set_gcId(_shared_gc_info.gc_id().id());
222 e.set_data(to_trace_struct(ef_info));
223 e.commit();
224 }
225 }
226 #endif
227
228 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
229 TraceStructVirtualSpace space;
230 space.set_start((TraceAddress)summary.start());
231 space.set_committedEnd((TraceAddress)summary.committed_end());
232 space.set_committedSize(summary.committed_size());
233 space.set_reservedEnd((TraceAddress)summary.reserved_end());
234 space.set_reservedSize(summary.reserved_size());
235 return space;
236 }
237
238 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
239 TraceStructObjectSpace space;
240 space.set_start((TraceAddress)summary.start());
241 space.set_end((TraceAddress)summary.end());
242 space.set_used(summary.used());
243 space.set_size(summary.size());
244 return space;
245 }
246
247 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
248 GCId _gc_id;
249 GCWhen::Type _when;
250 public:
251 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
252
253 void visit(const GCHeapSummary* heap_summary) const {
254 const VirtualSpaceSummary& heap_space = heap_summary->heap();
255
256 EventGCHeapSummary e;
257 if (e.should_commit()) {
258 e.set_gcId(_gc_id.id());
259 e.set_when((u1)_when);
260 e.set_heapSpace(to_trace_struct(heap_space));
261 e.set_heapUsed(heap_summary->used());
262 e.commit();
263 }
264 }
265
266 void visit(const PSHeapSummary* ps_heap_summary) const {
267 visit((GCHeapSummary*)ps_heap_summary);
268
269 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
270 const SpaceSummary& old_space = ps_heap_summary->old_space();
271 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
272 const SpaceSummary& eden_space = ps_heap_summary->eden();
273 const SpaceSummary& from_space = ps_heap_summary->from();
274 const SpaceSummary& to_space = ps_heap_summary->to();
275
276 EventPSHeapSummary e;
277 if (e.should_commit()) {
278 e.set_gcId(_gc_id.id());
279 e.set_when((u1)_when);
280
281 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
282 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
283 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
284 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
285 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
286 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
287 e.commit();
288 }
289 }
290 };
291
292 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
293 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
294 heap_summary.accept(&visitor);
295 }
296
297 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
298 TraceStructMetaspaceSizes meta_sizes;
299
300 meta_sizes.set_committed(sizes.committed());
301 meta_sizes.set_used(sizes.used());
302 meta_sizes.set_reserved(sizes.reserved());
303
304 return meta_sizes;
305 }
306
307 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
308 EventMetaspaceSummary e;
309 if (e.should_commit()) {
310 e.set_gcId(_shared_gc_info.gc_id().id());
311 e.set_when((u1) when);
312 e.set_gcThreshold(meta_space_summary.capacity_until_GC());
313 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
314 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
315 e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
316 e.commit();
317 }
318 }
319
320 class PhaseSender : public PhaseVisitor {
321 GCId _gc_id;
322 public:
323 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
324
325 template<typename T>
326 void send_phase(PausePhase* pause) {
327 T event(UNTIMED);
328 if (event.should_commit()) {
329 event.set_gcId(_gc_id.id());
330 event.set_name(pause->name());
331 event.set_starttime(pause->start());
332 event.set_endtime(pause->end());
333 event.commit();
334 }
335 }
336
337 void visit(GCPhase* pause) { ShouldNotReachHere(); }
338 void visit(ConcurrentPhase* pause) { Unimplemented(); }
339 void visit(PausePhase* pause) {
340 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
341
342 switch (pause->level()) {
343 case 0: send_phase<EventGCPhasePause>(pause); break;
344 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
345 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
346 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
347 default: /* Ignore sending this phase */ break;
348 }
349 }
350 };
351
352 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
353 PhaseSender phase_reporter(_shared_gc_info.gc_id());
354
355 TimePartitionPhasesIterator iter(time_partitions);
356 while (iter.has_next()) {
357 GCPhase* phase = iter.next();
358 phase->accept(&phase_reporter);
359 }
360 }