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/tracing.hpp" 32 #ifndef SERIALGC 33 #include "gc_implementation/g1/g1YCTypes.hpp" 34 #endif 35 36 // All GC dependencies against the trace framework is contained within this file. 37 38 typedef uintptr_t TraceAddress; 39 40 void GCTracer::send_garbage_collection_event() const { 41 EventGCGarbageCollection event(UNTIMED); 42 if (event.should_commit()) { 43 event.set_gcId(_shared_gc_info.id()); 44 event.set_name(_shared_gc_info.name()); 45 event.set_cause((u2) _shared_gc_info.cause()); 46 event.set_sumOfPauses(_shared_gc_info.sum_of_pauses()); 47 event.set_longestPause(_shared_gc_info.longest_pause()); 48 event.set_starttime(_shared_gc_info.start_timestamp()); 49 event.set_endtime(_shared_gc_info.end_timestamp()); 50 event.commit(); 51 } 52 } 53 54 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const { 55 EventGCReferenceStatistics e; 56 if (e.should_commit()) { 57 e.set_gcId(_shared_gc_info.id()); 58 e.set_type((u1)type); 59 e.set_count(count); 60 e.commit(); 61 } 62 } 63 64 void ParallelOldTracer::send_parallel_old_event() const { 65 EventGCParallelOld e(UNTIMED); 66 if (e.should_commit()) { 67 e.set_gcId(_shared_gc_info.id()); 68 e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix()); 69 e.set_starttime(_shared_gc_info.start_timestamp()); 70 e.set_endtime(_shared_gc_info.end_timestamp()); 71 e.commit(); 72 } 73 } 74 75 void YoungGCTracer::send_young_gc_event() const { 76 EventGCYoungGarbageCollection e(UNTIMED); 77 if (e.should_commit()) { 78 e.set_gcId(_shared_gc_info.id()); 79 e.set_starttime(_shared_gc_info.start_timestamp()); 80 e.set_endtime(_shared_gc_info.end_timestamp()); 81 e.commit(); 82 } 83 } 84 85 void OldGCTracer::send_old_gc_event() const { 86 EventGCOldGarbageCollection e(UNTIMED); 87 if (e.should_commit()) { 88 e.set_gcId(_shared_gc_info.id()); 89 e.set_starttime(_shared_gc_info.start_timestamp()); 90 e.set_endtime(_shared_gc_info.end_timestamp()); 91 e.commit(); 92 } 93 } 94 95 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) { 96 TraceStructCopyFailed failed_info; 97 failed_info.set_objectCount(cf_info.failed_count()); 98 failed_info.set_firstSize(cf_info.first_size()); 99 failed_info.set_smallestSize(cf_info.smallest_size()); 100 failed_info.set_totalSize(cf_info.total_size()); 101 failed_info.set_thread(cf_info.thread()->thread_id()); 102 return failed_info; 103 } 104 105 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const { 106 EventPromotionFailed e; 107 if (e.should_commit()) { 108 e.set_gcId(_shared_gc_info.id()); 109 e.set_data(to_trace_struct(pf_info)); 110 e.commit(); 111 } 112 } 113 114 #ifndef SERIALGC 115 void G1NewTracer::send_g1_young_gc_event() { 116 EventGCG1GarbageCollection e(UNTIMED); 117 if (e.should_commit()) { 118 e.set_gcId(_shared_gc_info.id()); 119 e.set_type(_g1_young_gc_info.type()); 120 e.set_starttime(_shared_gc_info.start_timestamp()); 121 e.set_endtime(_shared_gc_info.end_timestamp()); 122 e.commit(); 123 } 124 } 125 #endif 126 127 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) { 128 TraceStructVirtualSpace space; 129 space.set_start((TraceAddress)summary.start()); 130 space.set_committedEnd((TraceAddress)summary.committed_end()); 131 space.set_committedSize(summary.committed_size()); 132 space.set_reservedEnd((TraceAddress)summary.reserved_end()); 133 space.set_reservedSize(summary.reserved_size()); 134 return space; 135 } 136 137 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) { 138 TraceStructObjectSpace space; 139 space.set_start((TraceAddress)summary.start()); 140 space.set_end((TraceAddress)summary.end()); 141 space.set_used(summary.used()); 142 space.set_size(summary.size()); 143 return space; 144 } 145 146 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor { 147 GCId _id; 148 GCWhen::Type _when; 149 public: 150 GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {} 151 152 void visit(const GCHeapSummary* heap_summary) const { 153 const VirtualSpaceSummary& heap_space = heap_summary->heap(); 154 155 EventGCHeapSummary e; 156 if (e.should_commit()) { 157 e.set_gcId(_id); 158 e.set_when((u1)_when); 159 e.set_heapSpace(to_trace_struct(heap_space)); 160 e.set_heapUsed(heap_summary->used()); 161 e.commit(); 162 } 163 } 164 165 void visit(const PSHeapSummary* ps_heap_summary) const { 166 visit((GCHeapSummary*)ps_heap_summary); 167 168 EventPSHeapSummary e; 169 if (e.should_commit()) { 170 e.set_gcId(_id); 171 e.set_when((u1)_when); 172 e.set_oldSpace(to_trace_struct(ps_heap_summary->old())); 173 e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space())); 174 e.set_youngSpace(to_trace_struct(ps_heap_summary->young())); 175 e.set_edenSpace(to_trace_struct(ps_heap_summary->eden())); 176 e.set_fromSpace(to_trace_struct(ps_heap_summary->from())); 177 e.set_toSpace(to_trace_struct(ps_heap_summary->to())); 178 e.commit(); 179 } 180 } 181 }; 182 183 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const { 184 GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when); 185 heap_summary.accept(&visitor); 186 } 187 188 void GCTracer::send_perm_gen_summary_event(GCWhen::Type when, const PermGenSummary& perm_gen_summary) const { 189 const VirtualSpaceSummary& perm_space = perm_gen_summary.perm_space(); 190 const SpaceSummary& object_space = perm_gen_summary.object_space(); 191 192 EventPermGenSummary e; 193 if (e.should_commit()) { 194 e.set_gcId(_shared_gc_info.id()); 195 e.set_when((u1) when); 196 e.set_permSpace(to_trace_struct(perm_space)); 197 e.set_objectSpace(to_trace_struct(object_space)); 198 e.commit(); 199 } 200 } 201 202 class PhaseSender : public PhaseVisitor { 203 GCId _gc_id; 204 public: 205 PhaseSender(GCId gc_id) : _gc_id(gc_id) {} 206 207 template<typename T> 208 void send_phase(PausePhase* pause) { 209 T event(UNTIMED); 210 if (event.should_commit()) { 211 event.set_gcId(_gc_id); 212 event.set_name(pause->name()); 213 event.set_starttime(pause->start()); 214 event.set_endtime(pause->end()); 215 event.commit(); 216 } 217 } 218 219 void visit(GCPhase* pause) { ShouldNotReachHere(); } 220 void visit(ConcurrentPhase* pause) { Unimplemented(); } 221 void visit(PausePhase* pause) { 222 assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types"); 223 224 switch (pause->level()) { 225 case 0: send_phase<EventGCPhasePause>(pause); break; 226 case 1: send_phase<EventGCPhasePauseLevel1>(pause); break; 227 case 2: send_phase<EventGCPhasePauseLevel2>(pause); break; 228 case 3: send_phase<EventGCPhasePauseLevel3>(pause); break; 229 default: /* Ignore sending this phase */ break; 230 } 231 } 232 233 #undef send_phase 234 }; 235 236 void GCTracer::send_phase_events(TimePartitions* time_partitions) const { 237 PhaseSender phase_reporter(_shared_gc_info.id()); 238 239 TimePartitionPhasesIterator iter(time_partitions); 240 while (iter.has_next()) { 241 GCPhase* phase = iter.next(); 242 phase->accept(&phase_reporter); 243 } 244 }