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 #if INCLUDE_ALL_GCS
35 #include "gc_implementation/g1/evacuationInfo.hpp"
36 #include "gc_implementation/g1/g1YCTypes.hpp"
37 #endif
38
39 // All GC dependencies against the trace framework is contained within this file.
40
41 typedef uintptr_t TraceAddress;
42
43 void GCTracer::send_garbage_collection_event() const {
44 EventGCGarbageCollection event(UNTIMED);
45 if (event.should_commit()) {
46 event.set_gcId(_shared_gc_info.gc_id().id());
47 event.set_name(_shared_gc_info.name());
48 event.set_cause((u2) _shared_gc_info.cause());
49 event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
50 event.set_longestPause(_shared_gc_info.longest_pause());
51 event.set_starttime(_shared_gc_info.start_timestamp());
52 event.set_endtime(_shared_gc_info.end_timestamp());
53 event.commit();
54 }
55 }
56
57 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
58 EventGCReferenceStatistics e;
59 if (e.should_commit()) {
60 e.set_gcId(_shared_gc_info.gc_id().id());
61 e.set_type((u1)type);
62 e.set_count(count);
63 e.commit();
64 }
65 }
66
67 void GCTracer::send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype,
68 const MetaspaceChunkFreeListSummary& summary) const {
69 EventMetaspaceChunkFreeListSummary e;
70 if (e.should_commit()) {
71 e.set_gcId(_shared_gc_info.gc_id().id());
72 e.set_when(when);
73 e.set_metadataType(mdtype);
74
75 e.set_specializedChunks(summary.num_specialized_chunks());
76 e.set_specializedChunksTotalSize(summary.specialized_chunks_size_in_bytes());
77
78 e.set_smallChunks(summary.num_small_chunks());
79 e.set_smallChunksTotalSize(summary.small_chunks_size_in_bytes());
80
81 e.set_mediumChunks(summary.num_medium_chunks());
82 e.set_mediumChunksTotalSize(summary.medium_chunks_size_in_bytes());
83
84 e.set_humongousChunks(summary.num_humongous_chunks());
85 e.set_humongousChunksTotalSize(summary.humongous_chunks_size_in_bytes());
86
87 e.commit();
88 }
89 }
90
91 void ParallelOldTracer::send_parallel_old_event() const {
92 EventGCParallelOld e(UNTIMED);
93 if (e.should_commit()) {
94 e.set_gcId(_shared_gc_info.gc_id().id());
95 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
96 e.set_starttime(_shared_gc_info.start_timestamp());
97 e.set_endtime(_shared_gc_info.end_timestamp());
98 e.commit();
99 }
100 }
101
102 void YoungGCTracer::send_young_gc_event() const {
103 EventGCYoungGarbageCollection e(UNTIMED);
104 if (e.should_commit()) {
105 e.set_gcId(_shared_gc_info.gc_id().id());
106 e.set_tenuringThreshold(_tenuring_threshold);
107 e.set_starttime(_shared_gc_info.start_timestamp());
108 e.set_endtime(_shared_gc_info.end_timestamp());
109 e.commit();
110 }
111 }
112
113 void OldGCTracer::send_old_gc_event() const {
114 EventGCOldGarbageCollection e(UNTIMED);
115 if (e.should_commit()) {
116 e.set_gcId(_shared_gc_info.gc_id().id());
117 e.set_starttime(_shared_gc_info.start_timestamp());
118 e.set_endtime(_shared_gc_info.end_timestamp());
119 e.commit();
120 }
121 }
122
123 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {
124 TraceStructCopyFailed failed_info;
125 failed_info.set_objectCount(cf_info.failed_count());
126 failed_info.set_firstSize(cf_info.first_size());
127 failed_info.set_smallestSize(cf_info.smallest_size());
128 failed_info.set_totalSize(cf_info.total_size());
129 return failed_info;
130 }
131
132 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
133 EventPromotionFailed e;
134 if (e.should_commit()) {
135 e.set_gcId(_shared_gc_info.gc_id().id());
136 e.set_data(to_trace_struct(pf_info));
137 e.set_thread(pf_info.thread()->thread_id());
138 e.commit();
139 }
140 }
141
142 // Common to CMS and G1
143 void OldGCTracer::send_concurrent_mode_failure_event() {
144 EventConcurrentModeFailure e;
145 if (e.should_commit()) {
146 e.set_gcId(_shared_gc_info.gc_id().id());
147 e.commit();
148 }
149 }
150
151 #if INCLUDE_ALL_GCS
152 void G1NewTracer::send_g1_young_gc_event() {
153 EventGCG1GarbageCollection e(UNTIMED);
154 if (e.should_commit()) {
155 e.set_gcId(_shared_gc_info.gc_id().id());
156 e.set_type(_g1_young_gc_info.type());
157 e.set_starttime(_shared_gc_info.start_timestamp());
158 e.set_endtime(_shared_gc_info.end_timestamp());
159 e.commit();
160 }
161 }
162
163 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
164 EventEvacuationInfo e;
165 if (e.should_commit()) {
166 e.set_gcId(_shared_gc_info.gc_id().id());
167 e.set_cSetRegions(info->collectionset_regions());
168 e.set_cSetUsedBefore(info->collectionset_used_before());
169 e.set_cSetUsedAfter(info->collectionset_used_after());
170 e.set_allocationRegions(info->allocation_regions());
171 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
172 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
173 e.set_bytesCopied(info->bytes_copied());
174 e.set_regionsFreed(info->regions_freed());
175 e.commit();
176 }
177 }
178
179 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
180 EventEvacuationFailed e;
181 if (e.should_commit()) {
182 e.set_gcId(_shared_gc_info.gc_id().id());
183 e.set_data(to_trace_struct(ef_info));
184 e.commit();
185 }
186 }
187 #endif
188
189 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
190 TraceStructVirtualSpace space;
191 space.set_start((TraceAddress)summary.start());
192 space.set_committedEnd((TraceAddress)summary.committed_end());
193 space.set_committedSize(summary.committed_size());
194 space.set_reservedEnd((TraceAddress)summary.reserved_end());
195 space.set_reservedSize(summary.reserved_size());
196 return space;
197 }
198
199 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
200 TraceStructObjectSpace space;
201 space.set_start((TraceAddress)summary.start());
202 space.set_end((TraceAddress)summary.end());
203 space.set_used(summary.used());
204 space.set_size(summary.size());
205 return space;
206 }
207
208 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
209 GCId _gc_id;
210 GCWhen::Type _when;
211 public:
212 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
213
214 void visit(const GCHeapSummary* heap_summary) const {
215 const VirtualSpaceSummary& heap_space = heap_summary->heap();
216
217 EventGCHeapSummary e;
218 if (e.should_commit()) {
219 e.set_gcId(_gc_id.id());
220 e.set_when((u1)_when);
221 e.set_heapSpace(to_trace_struct(heap_space));
222 e.set_heapUsed(heap_summary->used());
223 e.commit();
224 }
225 }
226
227 void visit(const PSHeapSummary* ps_heap_summary) const {
228 visit((GCHeapSummary*)ps_heap_summary);
229
230 const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
231 const SpaceSummary& old_space = ps_heap_summary->old_space();
232 const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
233 const SpaceSummary& eden_space = ps_heap_summary->eden();
234 const SpaceSummary& from_space = ps_heap_summary->from();
235 const SpaceSummary& to_space = ps_heap_summary->to();
236
237 EventPSHeapSummary e;
238 if (e.should_commit()) {
239 e.set_gcId(_gc_id.id());
240 e.set_when((u1)_when);
241
242 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
243 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
244 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
245 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
246 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
247 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
248 e.commit();
249 }
250 }
251 };
252
253 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
254 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
255 heap_summary.accept(&visitor);
256 }
257
258 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
259 TraceStructMetaspaceSizes meta_sizes;
260
261 meta_sizes.set_committed(sizes.committed());
262 meta_sizes.set_used(sizes.used());
263 meta_sizes.set_reserved(sizes.reserved());
264
265 return meta_sizes;
266 }
267
268 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
269 EventMetaspaceSummary e;
270 if (e.should_commit()) {
271 e.set_gcId(_shared_gc_info.gc_id().id());
272 e.set_when((u1) when);
273 e.set_gcThreshold(meta_space_summary.capacity_until_GC());
274 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
275 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
276 e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
277 e.commit();
278 }
279 }
280
281 class PhaseSender : public PhaseVisitor {
282 GCId _gc_id;
283 public:
284 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
285
286 template<typename T>
287 void send_phase(PausePhase* pause) {
288 T event(UNTIMED);
289 if (event.should_commit()) {
290 event.set_gcId(_gc_id.id());
291 event.set_name(pause->name());
292 event.set_starttime(pause->start());
293 event.set_endtime(pause->end());
294 event.commit();
295 }
296 }
297
298 void visit(GCPhase* pause) { ShouldNotReachHere(); }
299 void visit(ConcurrentPhase* pause) { Unimplemented(); }
300 void visit(PausePhase* pause) {
301 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
302
303 switch (pause->level()) {
304 case 0: send_phase<EventGCPhasePause>(pause); break;
305 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
306 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
307 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
308 default: /* Ignore sending this phase */ break;
309 }
310 }
311 };
312
313 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
314 PhaseSender phase_reporter(_shared_gc_info.gc_id());
315
316 TimePartitionPhasesIterator iter(time_partitions);
317 while (iter.has_next()) {
318 GCPhase* phase = iter.next();
319 phase->accept(&phase_reporter);
320 }
321 }