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 "jfr/jfrEvents.hpp" 27 #include "gc_implementation/shared/gcHeapSummary.hpp" 28 #include "gc_implementation/shared/gcTimer.hpp" 29 #include "gc_implementation/shared/gcTrace.hpp" 30 #include "gc_implementation/shared/gcWhen.hpp" 31 #include "gc_implementation/shared/copyFailedInfo.hpp" 32 #include "runtime/os.hpp" 33 #if INCLUDE_ALL_GCS 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 EventGarbageCollection event(UNTIMED); 44 if (event.should_commit()) { 45 event.set_gcId(_shared_gc_info.gc_id().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.gc_id().id()); 60 e.set_type((u1)type); 61 e.set_count(count); 62 e.commit(); 63 } 64 } 65 66 void GCTracer::send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype, 67 const MetaspaceChunkFreeListSummary& summary) const { 68 EventMetaspaceChunkFreeListSummary e; 69 if (e.should_commit()) { 70 e.set_gcId(_shared_gc_info.gc_id().id()); 71 e.set_when(when); 72 e.set_metadataType(mdtype); 73 74 e.set_specializedChunks(summary.num_specialized_chunks()); 75 e.set_specializedChunksTotalSize(summary.specialized_chunks_size_in_bytes()); 76 77 e.set_smallChunks(summary.num_small_chunks()); 78 e.set_smallChunksTotalSize(summary.small_chunks_size_in_bytes()); 79 80 e.set_mediumChunks(summary.num_medium_chunks()); 81 e.set_mediumChunksTotalSize(summary.medium_chunks_size_in_bytes()); 82 83 e.set_humongousChunks(summary.num_humongous_chunks()); 84 e.set_humongousChunksTotalSize(summary.humongous_chunks_size_in_bytes()); 85 86 e.commit(); 87 } 88 } 89 90 void ParallelOldTracer::send_parallel_old_event() const { 91 EventParallelOldGarbageCollection e(UNTIMED); 92 if (e.should_commit()) { 93 e.set_gcId(_shared_gc_info.gc_id().id()); 94 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix()); 95 e.set_starttime(_shared_gc_info.start_timestamp()); 96 e.set_endtime(_shared_gc_info.end_timestamp()); 97 e.commit(); 98 } 99 } 100 101 void YoungGCTracer::send_young_gc_event() const { 102 EventYoungGarbageCollection e(UNTIMED); 103 if (e.should_commit()) { 104 e.set_gcId(_shared_gc_info.gc_id().id()); 105 e.set_tenuringThreshold(_tenuring_threshold); 106 e.set_starttime(_shared_gc_info.start_timestamp()); 107 e.set_endtime(_shared_gc_info.end_timestamp()); 108 e.commit(); 109 } 110 } 111 112 bool YoungGCTracer::should_send_promotion_in_new_plab_event() const { 113 return EventPromoteObjectInNewPLAB::is_enabled(); 114 } 115 116 bool YoungGCTracer::should_send_promotion_outside_plab_event() const { 117 return EventPromoteObjectOutsidePLAB::is_enabled(); 118 } 119 120 void YoungGCTracer::send_promotion_in_new_plab_event(Klass* klass, size_t obj_size, 121 uint age, bool tenured, 122 size_t plab_size) const { 123 124 EventPromoteObjectInNewPLAB event; 125 if (event.should_commit()) { 126 event.set_gcId(_shared_gc_info.gc_id().id()); 127 event.set_objectClass(klass); 128 event.set_objectSize(obj_size); 129 event.set_tenured(tenured); 130 event.set_tenuringAge(age); 131 event.set_plabSize(plab_size); 132 event.commit(); 133 } 134 } 135 136 void YoungGCTracer::send_promotion_outside_plab_event(Klass* klass, size_t obj_size, 137 uint age, bool tenured) const { 138 139 EventPromoteObjectOutsidePLAB event; 140 if (event.should_commit()) { 141 event.set_gcId(_shared_gc_info.gc_id().id()); 142 event.set_objectClass(klass); 143 event.set_objectSize(obj_size); 144 event.set_tenured(tenured); 145 event.set_tenuringAge(age); 146 event.commit(); 147 } 148 } 149 150 void OldGCTracer::send_old_gc_event() const { 151 EventOldGarbageCollection e(UNTIMED); 152 if (e.should_commit()) { 153 e.set_gcId(_shared_gc_info.gc_id().id()); 154 e.set_starttime(_shared_gc_info.start_timestamp()); 155 e.set_endtime(_shared_gc_info.end_timestamp()); 156 e.commit(); 157 } 158 } 159 160 static JfrStructCopyFailed to_struct(const CopyFailedInfo& cf_info) { 161 JfrStructCopyFailed failed_info; 162 failed_info.set_objectCount(cf_info.failed_count()); 163 failed_info.set_firstSize(cf_info.first_size()); 164 failed_info.set_smallestSize(cf_info.smallest_size()); 165 failed_info.set_totalSize(cf_info.total_size()); 166 return failed_info; 167 } 168 169 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const { 170 EventPromotionFailed e; 171 if (e.should_commit()) { 172 e.set_gcId(_shared_gc_info.gc_id().id()); 173 e.set_promotionFailed(to_struct(pf_info)); 174 e.set_thread(pf_info.thread()->thread_id()); 175 e.commit(); 176 } 177 } 178 179 // Common to CMS and G1 180 void OldGCTracer::send_concurrent_mode_failure_event() { 181 EventConcurrentModeFailure e; 182 if (e.should_commit()) { 183 e.set_gcId(_shared_gc_info.gc_id().id()); 184 e.commit(); 185 } 186 } 187 188 #if INCLUDE_ALL_GCS 189 void G1NewTracer::send_g1_young_gc_event() { 190 EventG1GarbageCollection e(UNTIMED); 191 if (e.should_commit()) { 192 e.set_gcId(_shared_gc_info.gc_id().id()); 193 e.set_type(_g1_young_gc_info.type()); 194 e.set_starttime(_shared_gc_info.start_timestamp()); 195 e.set_endtime(_shared_gc_info.end_timestamp()); 196 e.commit(); 197 } 198 } 199 200 void G1MMUTracer::send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms) { 201 EventG1MMU e; 202 if (e.should_commit()) { 203 e.set_gcId(GCId::peek().id()); 204 e.set_timeSlice((s8)time_slice_ms); 205 e.set_gcTime((s8)gc_time_ms); 206 e.set_pauseTarget((s8)max_time_ms); 207 e.commit(); 208 } 209 } 210 211 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) { 212 EventEvacuationInformation e; 213 if (e.should_commit()) { 214 e.set_gcId(_shared_gc_info.gc_id().id()); 215 e.set_cSetRegions(info->collectionset_regions()); 216 e.set_cSetUsedBefore(info->collectionset_used_before()); 217 e.set_cSetUsedAfter(info->collectionset_used_after()); 218 e.set_allocationRegions(info->allocation_regions()); 219 e.set_allocationRegionsUsedBefore(info->alloc_regions_used_before()); 220 e.set_allocationRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied()); 221 e.set_bytesCopied(info->bytes_copied()); 222 e.set_regionsFreed(info->regions_freed()); 223 e.commit(); 224 } 225 } 226 227 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const { 228 EventEvacuationFailed e; 229 if (e.should_commit()) { 230 e.set_gcId(_shared_gc_info.gc_id().id()); 231 e.set_evacuationFailed(to_struct(ef_info)); 232 e.commit(); 233 } 234 } 235 236 // XXX 237 //static JfrStructG1EvacuationStatistics 238 //create_g1_evacstats(unsigned gcid, const G1EvacSummary& summary) { 239 // JfrStructG1EvacuationStatistics s; 240 // s.set_gcId(gcid); 241 // s.set_allocated(summary.allocated() * HeapWordSize); 242 // s.set_wasted(summary.wasted() * HeapWordSize); 243 // s.set_used(summary.used() * HeapWordSize); 244 // s.set_undoWaste(summary.undo_wasted() * HeapWordSize); 245 // s.set_regionEndWaste(summary.region_end_waste() * HeapWordSize); 246 // s.set_regionsRefilled(summary.regions_filled()); 247 // s.set_directAllocated(summary.direct_allocated() * HeapWordSize); 248 // s.set_failureUsed(summary.failure_used() * HeapWordSize); 249 // s.set_failureWaste(summary.failure_waste() * HeapWordSize); 250 // return s; 251 //} 252 // 253 //void G1NewTracer::send_young_evacuation_statistics(const G1EvacSummary& summary) const { 254 // EventG1EvacuationYoungStatistics surv_evt; 255 // if (surv_evt.should_commit()) { 256 // surv_evt.set_statistics(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary)); 257 // surv_evt.commit(); 258 // } 259 //} 260 // 261 //void G1NewTracer::send_old_evacuation_statistics(const G1EvacSummary& summary) const { 262 // EventG1EvacuationOldStatistics old_evt; 263 // if (old_evt.should_commit()) { 264 // old_evt.set_statistics(create_g1_evacstats(_shared_gc_info.gc_id().id(), summary)); 265 // old_evt.commit(); 266 // } 267 //} 268 // 269 //void G1NewTracer::send_basic_ihop_statistics(size_t threshold, 270 // size_t target_occupancy, 271 // size_t current_occupancy, 272 // size_t last_allocation_size, 273 // double last_allocation_duration, 274 // double last_marking_length) { 275 // EventG1BasicIHOP evt; 276 // if (evt.should_commit()) { 277 // evt.set_gcId(_shared_gc_info.gc_id().id()); 278 // evt.set_threshold(threshold); 279 // evt.set_targetOccupancy(target_occupancy); 280 // evt.set_thresholdPercentage(target_occupancy > 0 ? ((double)threshold / target_occupancy) : 0.0); 281 // evt.set_currentOccupancy(current_occupancy); 282 // evt.set_recentMutatorAllocationSize(last_allocation_size); 283 // evt.set_recentMutatorDuration(last_allocation_duration * MILLIUNITS); 284 // evt.set_recentAllocationRate(last_allocation_duration != 0.0 ? last_allocation_size / last_allocation_duration : 0.0); 285 // evt.set_lastMarkingDuration(last_marking_length * MILLIUNITS); 286 // evt.commit(); 287 // } 288 //} 289 // 290 //void G1NewTracer::send_adaptive_ihop_statistics(size_t threshold, 291 // size_t internal_target_occupancy, 292 // size_t current_occupancy, 293 // size_t additional_buffer_size, 294 // double predicted_allocation_rate, 295 // double predicted_marking_length, 296 // bool prediction_active) { 297 // EventG1AdaptiveIHOP evt; 298 // if (evt.should_commit()) { 299 // evt.set_gcId(_shared_gc_info.gc_id().id()); 300 // evt.set_threshold(threshold); 301 // evt.set_thresholdPercentage(internal_target_occupancy > 0 ? ((double)threshold / internal_target_occupancy) : 0.0); 302 // evt.set_ihopTargetOccupancy(internal_target_occupancy); 303 // evt.set_currentOccupancy(current_occupancy); 304 // evt.set_additionalBufferSize(additional_buffer_size); 305 // evt.set_predictedAllocationRate(predicted_allocation_rate); 306 // evt.set_predictedMarkingDuration(predicted_marking_length * MILLIUNITS); 307 // evt.set_predictionActive(prediction_active); 308 // evt.commit(); 309 // } 310 //} 311 312 #endif // INCLUDE_ALL_GCS 313 314 static JfrStructVirtualSpace to_struct(const VirtualSpaceSummary& summary) { 315 JfrStructVirtualSpace space; 316 space.set_start((TraceAddress)summary.start()); 317 space.set_committedEnd((TraceAddress)summary.committed_end()); 318 space.set_committedSize(summary.committed_size()); 319 space.set_reservedEnd((TraceAddress)summary.reserved_end()); 320 space.set_reservedSize(summary.reserved_size()); 321 return space; 322 } 323 324 static JfrStructObjectSpace to_struct(const SpaceSummary& summary) { 325 JfrStructObjectSpace space; 326 space.set_start((TraceAddress)summary.start()); 327 space.set_end((TraceAddress)summary.end()); 328 space.set_used(summary.used()); 329 space.set_size(summary.size()); 330 return space; 331 } 332 333 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor { 334 GCId _gc_id; 335 GCWhen::Type _when; 336 public: 337 GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {} 338 339 void visit(const GCHeapSummary* heap_summary) const { 340 const VirtualSpaceSummary& heap_space = heap_summary->heap(); 341 342 EventGCHeapSummary e; 343 if (e.should_commit()) { 344 e.set_gcId(_gc_id.id()); 345 e.set_when((u1)_when); 346 e.set_heapSpace(to_struct(heap_space)); 347 e.set_heapUsed(heap_summary->used()); 348 e.commit(); 349 } 350 } 351 352 // void visit(const G1HeapSummary* g1_heap_summary) const { 353 // visit((GCHeapSummary*)g1_heap_summary); 354 // 355 // EventG1HeapSummary e; 356 // if (e.should_commit()) { 357 // e.set_gcId(_shared_gc_info.gc_id().id()); 358 // e.set_when((u1)_when); 359 // e.set_edenUsedSize(g1_heap_summary->edenUsed()); 360 // e.set_edenTotalSize(g1_heap_summary->edenCapacity()); 361 // e.set_survivorUsedSize(g1_heap_summary->survivorUsed()); 362 // e.set_numberOfRegions(g1_heap_summary->numberOfRegions()); 363 // e.commit(); 364 // } 365 // } 366 367 void visit(const PSHeapSummary* ps_heap_summary) const { 368 visit((GCHeapSummary*)ps_heap_summary); 369 370 const VirtualSpaceSummary& old_summary = ps_heap_summary->old(); 371 const SpaceSummary& old_space = ps_heap_summary->old_space(); 372 const VirtualSpaceSummary& young_summary = ps_heap_summary->young(); 373 const SpaceSummary& eden_space = ps_heap_summary->eden(); 374 const SpaceSummary& from_space = ps_heap_summary->from(); 375 const SpaceSummary& to_space = ps_heap_summary->to(); 376 377 EventPSHeapSummary e; 378 if (e.should_commit()) { 379 e.set_gcId(_gc_id.id()); 380 e.set_when((u1)_when); 381 382 e.set_oldSpace(to_struct(ps_heap_summary->old())); 383 e.set_oldObjectSpace(to_struct(ps_heap_summary->old_space())); 384 e.set_youngSpace(to_struct(ps_heap_summary->young())); 385 e.set_edenSpace(to_struct(ps_heap_summary->eden())); 386 e.set_fromSpace(to_struct(ps_heap_summary->from())); 387 e.set_toSpace(to_struct(ps_heap_summary->to())); 388 e.commit(); 389 } 390 } 391 }; 392 393 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const { 394 GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when); 395 heap_summary.accept(&visitor); 396 } 397 398 static JfrStructMetaspaceSizes to_struct(const MetaspaceSizes& sizes) { 399 JfrStructMetaspaceSizes meta_sizes; 400 401 meta_sizes.set_committed(sizes.committed()); 402 meta_sizes.set_used(sizes.used()); 403 meta_sizes.set_reserved(sizes.reserved()); 404 405 return meta_sizes; 406 } 407 408 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const { 409 EventMetaspaceSummary e; 410 if (e.should_commit()) { 411 e.set_gcId(_shared_gc_info.gc_id().id()); 412 e.set_when((u1) when); 413 e.set_gcThreshold(meta_space_summary.capacity_until_GC()); 414 e.set_metaspace(to_struct(meta_space_summary.meta_space())); 415 e.set_dataSpace(to_struct(meta_space_summary.data_space())); 416 e.set_classSpace(to_struct(meta_space_summary.class_space())); 417 e.commit(); 418 } 419 } 420 421 class PhaseSender : public PhaseVisitor { 422 GCId _gc_id; 423 public: 424 PhaseSender(GCId gc_id) : _gc_id(gc_id) {} 425 426 template<typename T> 427 void send_phase(GCPhase* phase) { 428 T event(UNTIMED); 429 if (event.should_commit()) { 430 event.set_gcId(_gc_id.id()); 431 event.set_name(phase->name()); 432 event.set_starttime(phase->start()); 433 event.set_endtime(phase->end()); 434 event.commit(); 435 } 436 } 437 438 void visit(GCPhase* pause) { ShouldNotReachHere(); } 439 void visit(ConcurrentPhase* pause) { Unimplemented(); } 440 void visit(PausePhase* pause) { 441 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types"); 442 443 switch (pause->level()) { 444 case 0: send_phase<EventGCPhasePause>(pause); break; 445 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break; 446 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break; 447 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break; 448 default: /* Ignore sending this phase */ break; 449 } 450 } 451 }; 452 453 void GCTracer::send_phase_events(TimePartitions* time_partitions) const { 454 PhaseSender phase_reporter(_shared_gc_info.gc_id()); 455 456 TimePartitionPhasesIterator iter(time_partitions); 457 while (iter.has_next()) { 458 GCPhase* phase = iter.next(); 459 phase->accept(&phase_reporter); 460 } 461 }