1 /* 2 * Copyright (c) 2012, 2015, 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/shared/copyFailedInfo.hpp" 27 #include "gc/shared/gcHeapSummary.hpp" 28 #include "gc/shared/gcTimer.hpp" 29 #include "gc/shared/gcTrace.hpp" 30 #include "gc/shared/gcWhen.hpp" 31 #include "runtime/os.hpp" 32 #include "trace/traceBackend.hpp" 33 #include "trace/tracing.hpp" 34 #include "utilities/macros.hpp" 35 #if INCLUDE_ALL_GCS 36 #include "gc/g1/evacuationInfo.hpp" 37 #include "gc/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 }