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/handles.hpp"
32 #include "runtime/os.hpp"
33 #include "trace/tracing.hpp"
34 #include "trace/traceBackend.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 EventPromoteObjectInNewPLAB event;
116 return event.should_commit();
117 }
118
119 bool YoungGCTracer::should_send_promotion_outside_plab_event() const {
120 EventPromoteObjectOutsidePLAB event;
121 return event.should_commit();
122 }
123
124 void YoungGCTracer::send_promotion_in_new_plab_event(const oop old, const size_t obj_size,
125 const uint age, bool tenured,
126 size_t plab_size) const {
127
128 EventPromoteObjectInNewPLAB event;
129 if (event.should_commit()) {
130 event.set_gcId(_shared_gc_info.gc_id().id());
131 event.set_class(KlassHandle(old->klass())());
132 event.set_objectSize(obj_size * HeapWordSize);
133 event.set_tenured(tenured);
134 event.set_tenuringAge(age);
135 event.set_plabSize(plab_size * HeapWordSize);
136 event.commit();
137 }
138 }
139
140 void YoungGCTracer::send_promotion_outside_plab_event(const oop old, const size_t obj_size,
141 const uint age, bool tenured) const {
142
143 EventPromoteObjectOutsidePLAB event;
144 if (event.should_commit()) {
145 event.set_gcId(_shared_gc_info.gc_id().id());
146 event.set_class(KlassHandle(old->klass())());
147 event.set_objectSize(obj_size * HeapWordSize);
148 event.set_tenured(tenured);
149 event.set_tenuringAge(age);
150 event.commit();
151 }
152 }
153
154 void OldGCTracer::send_old_gc_event() const {
155 EventGCOldGarbageCollection e(UNTIMED);
156 if (e.should_commit()) {
157 e.set_gcId(_shared_gc_info.gc_id().id());
158 e.set_starttime(_shared_gc_info.start_timestamp());
159 e.set_endtime(_shared_gc_info.end_timestamp());
160 e.commit();
161 }
162 }
163
164 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {
165 TraceStructCopyFailed failed_info;
166 failed_info.set_objectCount(cf_info.failed_count());
167 failed_info.set_firstSize(cf_info.first_size());
168 failed_info.set_smallestSize(cf_info.smallest_size());
169 failed_info.set_totalSize(cf_info.total_size());
170 return failed_info;
171 }
172
173 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
174 EventPromotionFailed e;
175 if (e.should_commit()) {
176 e.set_gcId(_shared_gc_info.gc_id().id());
177 e.set_data(to_trace_struct(pf_info));
178 e.set_thread(pf_info.thread()->thread_id());
179 e.commit();
180 }
181 }
182
183 // Common to CMS and G1
184 void OldGCTracer::send_concurrent_mode_failure_event() {
185 EventConcurrentModeFailure e;
186 if (e.should_commit()) {
187 e.set_gcId(_shared_gc_info.gc_id().id());
188 e.commit();
189 }
190 }
191
192 #if INCLUDE_ALL_GCS
193 void G1NewTracer::send_g1_young_gc_event() {
194 EventGCG1GarbageCollection e(UNTIMED);
195 if (e.should_commit()) {
196 e.set_gcId(_shared_gc_info.gc_id().id());
197 e.set_type(_g1_young_gc_info.type());
198 e.set_starttime(_shared_gc_info.start_timestamp());
199 e.set_endtime(_shared_gc_info.end_timestamp());
200 e.commit();
201 }
202 }
203
204 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
205 EventEvacuationInfo e;
206 if (e.should_commit()) {
207 e.set_gcId(_shared_gc_info.gc_id().id());
208 e.set_cSetRegions(info->collectionset_regions());
209 e.set_cSetUsedBefore(info->collectionset_used_before());
210 e.set_cSetUsedAfter(info->collectionset_used_after());
211 e.set_allocationRegions(info->allocation_regions());
212 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
213 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
214 e.set_bytesCopied(info->bytes_copied());
215 e.set_regionsFreed(info->regions_freed());
216 e.commit();
217 }
218 }
219
220 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
221 EventEvacuationFailed e;
222 if (e.should_commit()) {
223 e.set_gcId(_shared_gc_info.gc_id().id());
224 e.set_data(to_trace_struct(ef_info));
225 e.commit();
226 }
227 }
228 #endif
229
230 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
231 TraceStructVirtualSpace space;
232 space.set_start((TraceAddress)summary.start());
233 space.set_committedEnd((TraceAddress)summary.committed_end());
234 space.set_committedSize(summary.committed_size());
235 space.set_reservedEnd((TraceAddress)summary.reserved_end());
236 space.set_reservedSize(summary.reserved_size());
237 return space;
238 }
239
240 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
241 TraceStructObjectSpace space;
242 space.set_start((TraceAddress)summary.start());
243 space.set_end((TraceAddress)summary.end());
244 space.set_used(summary.used());
245 space.set_size(summary.size());
246 return space;
247 }
248
249 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
250 GCId _gc_id;
251 GCWhen::Type _when;
252 public:
253 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
254
255 void visit(const GCHeapSummary* heap_summary) const {
256 const VirtualSpaceSummary& heap_space = heap_summary->heap();
257
258 EventGCHeapSummary e;
259 if (e.should_commit()) {
260 e.set_gcId(_gc_id.id());
261 e.set_when((u1)_when);
262 e.set_heapSpace(to_trace_struct(heap_space));
263 e.set_heapUsed(heap_summary->used());
264 e.commit();
265 }
266 }
267
268 void visit(const PSHeapSummary* ps_heap_summary) const {
269 visit((GCHeapSummary*)ps_heap_summary);
270
271 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
272 const SpaceSummary& old_space = ps_heap_summary->old_space();
273 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
274 const SpaceSummary& eden_space = ps_heap_summary->eden();
275 const SpaceSummary& from_space = ps_heap_summary->from();
276 const SpaceSummary& to_space = ps_heap_summary->to();
277
278 EventPSHeapSummary e;
279 if (e.should_commit()) {
280 e.set_gcId(_gc_id.id());
281 e.set_when((u1)_when);
282
283 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
284 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
285 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
286 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
287 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
288 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
289 e.commit();
290 }
291 }
292 };
293
294 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
295 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
296 heap_summary.accept(&visitor);
297 }
298
299 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
300 TraceStructMetaspaceSizes meta_sizes;
301
302 meta_sizes.set_committed(sizes.committed());
303 meta_sizes.set_used(sizes.used());
304 meta_sizes.set_reserved(sizes.reserved());
305
306 return meta_sizes;
307 }
308
309 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
310 EventMetaspaceSummary e;
311 if (e.should_commit()) {
312 e.set_gcId(_shared_gc_info.gc_id().id());
313 e.set_when((u1) when);
314 e.set_gcThreshold(meta_space_summary.capacity_until_GC());
315 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
316 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
317 e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
318 e.commit();
319 }
320 }
321
322 class PhaseSender : public PhaseVisitor {
323 GCId _gc_id;
324 public:
325 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
326
327 template<typename T>
328 void send_phase(PausePhase* pause) {
329 T event(UNTIMED);
330 if (event.should_commit()) {
331 event.set_gcId(_gc_id.id());
332 event.set_name(pause->name());
333 event.set_starttime(pause->start());
334 event.set_endtime(pause->end());
335 event.commit();
336 }
337 }
338
339 void visit(GCPhase* pause) { ShouldNotReachHere(); }
340 void visit(ConcurrentPhase* pause) { Unimplemented(); }
341 void visit(PausePhase* pause) {
342 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
343
344 switch (pause->level()) {
345 case 0: send_phase<EventGCPhasePause>(pause); break;
346 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
347 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
348 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
349 default: /* Ignore sending this phase */ break;
350 }
351 }
352 };
353
354 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
355 PhaseSender phase_reporter(_shared_gc_info.gc_id());
356
357 TimePartitionPhasesIterator iter(time_partitions);
358 while (iter.has_next()) {
359 GCPhase* phase = iter.next();
360 phase->accept(&phase_reporter);
361 }
362 }