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.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.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, 68 Metaspace::MetadataType mdtype, 69 const MetaspaceChunkFreeListSummary& summary) const { 70 EventMetaspaceChunkFreeListSummary e; 71 if (e.should_commit()) { 72 e.set_gcId(_shared_gc_info.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.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.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 void OldGCTracer::send_old_gc_event() const { 115 EventGCOldGarbageCollection e(UNTIMED); 116 if (e.should_commit()) { 117 e.set_gcId(_shared_gc_info.id()); 118 e.set_starttime(_shared_gc_info.start_timestamp()); 119 e.set_endtime(_shared_gc_info.end_timestamp()); 120 e.commit(); 121 } 122 } 123 124 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) { 125 TraceStructCopyFailed failed_info; 126 failed_info.set_objectCount(cf_info.failed_count()); 127 failed_info.set_firstSize(cf_info.first_size()); 128 failed_info.set_smallestSize(cf_info.smallest_size()); 129 failed_info.set_totalSize(cf_info.total_size()); 130 return failed_info; 131 } 132 133 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const { 134 EventPromotionFailed e; 135 if (e.should_commit()) { 136 e.set_gcId(_shared_gc_info.id()); 137 e.set_data(to_trace_struct(pf_info)); 138 e.set_thread(pf_info.thread()->thread_id()); 139 e.commit(); 140 } 141 } 142 143 // Common to CMS and G1 144 void OldGCTracer::send_concurrent_mode_failure_event() { 145 EventConcurrentModeFailure e; 146 if (e.should_commit()) { 147 e.set_gcId(_shared_gc_info.id()); 148 e.commit(); 149 } 150 } 151 152 #if INCLUDE_ALL_GCS 153 void G1NewTracer::send_g1_young_gc_event() { 154 EventGCG1GarbageCollection e(UNTIMED); 155 if (e.should_commit()) { 156 e.set_gcId(_shared_gc_info.id()); 157 e.set_type(_g1_young_gc_info.type()); 158 e.set_starttime(_shared_gc_info.start_timestamp()); 159 e.set_endtime(_shared_gc_info.end_timestamp()); 160 e.commit(); 161 } 162 } 163 164 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) { 165 EventEvacuationInfo e; 166 if (e.should_commit()) { 167 e.set_gcId(_shared_gc_info.id()); 168 e.set_cSetRegions(info->collectionset_regions()); 169 e.set_cSetUsedBefore(info->collectionset_used_before()); 170 e.set_cSetUsedAfter(info->collectionset_used_after()); 171 e.set_allocationRegions(info->allocation_regions()); 172 e.set_allocRegionsUsedBefore(info->alloc_regions_used_before()); 173 e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied()); 174 e.set_bytesCopied(info->bytes_copied()); 175 e.set_regionsFreed(info->regions_freed()); 176 e.commit(); 177 } 178 } 179 180 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const { 181 EventEvacuationFailed e; 182 if (e.should_commit()) { 183 e.set_gcId(_shared_gc_info.id()); 184 e.set_data(to_trace_struct(ef_info)); 185 e.commit(); 186 } 187 } 188 #endif 189 190 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) { 191 TraceStructVirtualSpace space; 192 space.set_start((TraceAddress)summary.start()); 193 space.set_committedEnd((TraceAddress)summary.committed_end()); 194 space.set_committedSize(summary.committed_size()); 195 space.set_reservedEnd((TraceAddress)summary.reserved_end()); 196 space.set_reservedSize(summary.reserved_size()); 197 return space; 198 } 199 200 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) { 201 TraceStructObjectSpace space; 202 space.set_start((TraceAddress)summary.start()); 203 space.set_end((TraceAddress)summary.end()); 204 space.set_used(summary.used()); 205 space.set_size(summary.size()); 206 return space; 207 } 208 209 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor { 210 GCId _id; 211 GCWhen::Type _when; 212 public: 213 GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {} 214 215 void visit(const GCHeapSummary* heap_summary) const { 216 const VirtualSpaceSummary& heap_space = heap_summary->heap(); 217 218 EventGCHeapSummary e; 219 if (e.should_commit()) { 220 e.set_gcId(_id); 221 e.set_when((u1)_when); 222 e.set_heapSpace(to_trace_struct(heap_space)); 223 e.set_heapUsed(heap_summary->used()); 224 e.commit(); 225 } 226 } 227 228 void visit(const PSHeapSummary* ps_heap_summary) const { 229 visit((GCHeapSummary*)ps_heap_summary); 230 231 const VirtualSpaceSummary& old_summary = ps_heap_summary->old(); 232 const SpaceSummary& old_space = ps_heap_summary->old_space(); 233 const VirtualSpaceSummary& young_summary = ps_heap_summary->young(); 234 const SpaceSummary& eden_space = ps_heap_summary->eden(); 235 const SpaceSummary& from_space = ps_heap_summary->from(); 236 const SpaceSummary& to_space = ps_heap_summary->to(); 237 238 EventPSHeapSummary e; 239 if (e.should_commit()) { 240 e.set_gcId(_id); 241 e.set_when((u1)_when); 242 243 e.set_oldSpace(to_trace_struct(ps_heap_summary->old())); 244 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space())); 245 e.set_youngSpace(to_trace_struct(ps_heap_summary->young())); 246 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden())); 247 e.set_fromSpace(to_trace_struct(ps_heap_summary->from())); 248 e.set_toSpace(to_trace_struct(ps_heap_summary->to())); 249 e.commit(); 250 } 251 } 252 }; 253 254 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const { 255 GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when); 256 heap_summary.accept(&visitor); 257 } 258 259 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) { 260 TraceStructMetaspaceSizes meta_sizes; 261 262 meta_sizes.set_capacity(sizes.capacity()); 263 meta_sizes.set_used(sizes.used()); 264 meta_sizes.set_reserved(sizes.reserved()); 265 266 return meta_sizes; 267 } 268 269 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const { 270 EventMetaspaceSummary e; 271 if (e.should_commit()) { 272 e.set_gcId(_shared_gc_info.id()); 273 e.set_when((u1) when); 274 e.set_gcThreshold(meta_space_summary.gc_threshold()); 275 e.set_metaspace(to_trace_struct(meta_space_summary.meta_space())); 276 e.set_dataSpace(to_trace_struct(meta_space_summary.data_space())); 277 e.set_classSpace(to_trace_struct(meta_space_summary.class_space())); 278 e.commit(); 279 } 280 } 281 282 class PhaseSender : public PhaseVisitor { 283 GCId _gc_id; 284 public: 285 PhaseSender(GCId gc_id) : _gc_id(gc_id) {} 286 287 template<typename T> 288 void send_phase(PausePhase* pause) { 289 T event(UNTIMED); 290 if (event.should_commit()) { 291 event.set_gcId(_gc_id); 292 event.set_name(pause->name()); 293 event.set_starttime(pause->start()); 294 event.set_endtime(pause->end()); 295 event.commit(); 296 } 297 } 298 299 void visit(GCPhase* pause) { ShouldNotReachHere(); } 300 void visit(ConcurrentPhase* pause) { Unimplemented(); } 301 void visit(PausePhase* pause) { 302 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types"); 303 304 switch (pause->level()) { 305 case 0: send_phase<EventGCPhasePause>(pause); break; 306 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break; 307 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break; 308 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break; 309 default: /* Ignore sending this phase */ break; 310 } 311 } 312 }; 313 314 void GCTracer::send_phase_events(TimePartitions* time_partitions) const { 315 PhaseSender phase_reporter(_shared_gc_info.id()); 316 317 TimePartitionPhasesIterator iter(time_partitions); 318 while (iter.has_next()) { 319 GCPhase* phase = iter.next(); 320 phase->accept(&phase_reporter); 321 } 322 }