1 /*
2 * Copyright (c) 2012, 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/traceBackend.hpp"
32 #include "trace/tracing.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 failed_info.set_thread(cf_info.thread()->thread_id());
105 return failed_info;
106 }
107
108 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
109 EventPromotionFailed e;
110 if (e.should_commit()) {
111 e.set_gcId(_shared_gc_info.id());
112 e.set_data(to_trace_struct(pf_info));
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 void GCTracer::send_object_count_after_gc_event(klassOop klass, jlong count, julong total_size) const {
127 EventObjectCountAfterGC e;
128 if (e.should_commit()) {
129 e.set_gcId(_shared_gc_info.id());
130 e.set_class(klass);
131 e.set_count(count);
132 e.set_totalSize(total_size);
133 e.commit();
134 }
135 }
136
137 bool GCTracer::should_send_object_count_after_gc_event() const {
138 #if INCLUDE_TRACE
139 return Tracing::enabled(EventObjectCountAfterGC::eventId);
140 #else
141 return false;
142 #endif
143 }
144
145 #ifndef SERIALGC
146 void G1NewTracer::send_g1_young_gc_event() {
147 EventGCG1GarbageCollection e(UNTIMED);
148 if (e.should_commit()) {
149 e.set_gcId(_shared_gc_info.id());
150 e.set_type(_g1_young_gc_info.type());
151 e.set_starttime(_shared_gc_info.start_timestamp());
152 e.set_endtime(_shared_gc_info.end_timestamp());
153 e.commit();
154 }
155 }
156
157 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
158 EventEvacuationInfo e;
159 if (e.should_commit()) {
160 e.set_gcId(_shared_gc_info.id());
161 e.set_cSetRegions(info->collectionset_regions());
162 e.set_cSetUsedBefore(info->collectionset_used_before());
163 e.set_cSetUsedAfter(info->collectionset_used_after());
164 e.set_allocationRegions(info->allocation_regions());
165 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
166 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
167 e.set_bytesCopied(info->bytes_copied());
168 e.set_regionsFreed(info->regions_freed());
169 e.commit();
170 }
171 }
172 #endif
173
174 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
175 TraceStructVirtualSpace space;
176 space.set_start((TraceAddress)summary.start());
177 space.set_committedEnd((TraceAddress)summary.committed_end());
178 space.set_committedSize(summary.committed_size());
179 space.set_reservedEnd((TraceAddress)summary.reserved_end());
180 space.set_reservedSize(summary.reserved_size());
181 return space;
182 }
183
184 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
185 TraceStructObjectSpace space;
186 space.set_start((TraceAddress)summary.start());
187 space.set_end((TraceAddress)summary.end());
188 space.set_used(summary.used());
189 space.set_size(summary.size());
190 return space;
191 }
192
193 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
194 GCId _id;
195 GCWhen::Type _when;
196 public:
197 GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {}
198
199 void visit(const GCHeapSummary* heap_summary) const {
200 const VirtualSpaceSummary& heap_space = heap_summary->heap();
201
202 EventGCHeapSummary e;
203 if (e.should_commit()) {
204 e.set_gcId(_id);
205 e.set_when((u1)_when);
206 e.set_heapSpace(to_trace_struct(heap_space));
207 e.set_heapUsed(heap_summary->used());
208 e.commit();
209 }
210 }
211
212 void visit(const PSHeapSummary* ps_heap_summary) const {
213 visit((GCHeapSummary*)ps_heap_summary);
214
215 EventPSHeapSummary e;
216 if (e.should_commit()) {
217 e.set_gcId(_id);
218 e.set_when((u1)_when);
219 e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
220 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
221 e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
222 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
223 e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
224 e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
225 e.commit();
226 }
227 }
228 };
229
230 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
231 GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when);
232 heap_summary.accept(&visitor);
233 }
234
235 void GCTracer::send_perm_gen_summary_event(GCWhen::Type when, const PermGenSummary& perm_gen_summary) const {
236 const VirtualSpaceSummary& perm_space = perm_gen_summary.perm_space();
237 const SpaceSummary& object_space = perm_gen_summary.object_space();
238
239 EventPermGenSummary e;
240 if (e.should_commit()) {
241 e.set_gcId(_shared_gc_info.id());
242 e.set_when((u1) when);
243 e.set_permSpace(to_trace_struct(perm_space));
244 e.set_objectSpace(to_trace_struct(object_space));
245 e.commit();
246 }
247 }
248
249 class PhaseSender : public PhaseVisitor {
250 GCId _gc_id;
251 public:
252 PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
253
254 template<typename T>
255 void send_phase(PausePhase* pause) {
256 T event(UNTIMED);
257 if (event.should_commit()) {
258 event.set_gcId(_gc_id);
259 event.set_name(pause->name());
260 event.set_starttime(pause->start());
261 event.set_endtime(pause->end());
262 event.commit();
263 }
264 }
265
266 void visit(GCPhase* pause) { ShouldNotReachHere(); }
267 void visit(ConcurrentPhase* pause) { Unimplemented(); }
268 void visit(PausePhase* pause) {
269 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
270
271 switch (pause->level()) {
272 case 0: send_phase<EventGCPhasePause>(pause); break;
273 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
274 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
275 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
276 default: /* Ignore sending this phase */ break;
277 }
278 }
279
280 #undef send_phase
281 };
282
283 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
284 PhaseSender phase_reporter(_shared_gc_info.id());
285
286 TimePartitionPhasesIterator iter(time_partitions);
287 while (iter.has_next()) {
288 GCPhase* phase = iter.next();
289 phase->accept(&phase_reporter);
290 }
291 }