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