jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcTraceSend.cpp@9f28a4cac6d9 (annotated)

src/share/vm/gc_implementation/shared/gcTraceSend.cpp@9f28a4cac6d9 (annotated)

src/share/vm/gc_implementation/shared/gcTraceSend.cpp

Wed, 31 Jul 2019 14:28:51 -0400

author: kbarrett
date: Wed, 31 Jul 2019 14:28:51 -0400
changeset 9787: 9f28a4cac6d9
parent 6904: 0982ec23da03
child 7535: 7ae4e26cb1e0
child 9858: b985cbb00e68
permissions: -rw-r--r--

8048556: Unnecessary GCLocker-initiated young GCs
Summary: Fixed recognition of unnecessary GCLocker collections.
Reviewed-by: pliden, tschatzl
Contributed-by: johnc@azul.com

 /*
  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "gc_implementation/shared/gcHeapSummary.hpp"
 #include "gc_implementation/shared/gcTimer.hpp"
 #include "gc_implementation/shared/gcTrace.hpp"
 #include "gc_implementation/shared/gcWhen.hpp"
 #include "gc_implementation/shared/copyFailedInfo.hpp"
 #include "runtime/os.hpp"
 #include "trace/tracing.hpp"
 #include "trace/traceBackend.hpp"
 #if INCLUDE_ALL_GCS
 #include "gc_implementation/g1/evacuationInfo.hpp"
 #include "gc_implementation/g1/g1YCTypes.hpp"
 #endif
 // All GC dependencies against the trace framework is contained within this file.
 typedef uintptr_t TraceAddress;
 void GCTracer::send_garbage_collection_event() const {
   EventGCGarbageCollection event(UNTIMED);
   if (event.should_commit()) {
     event.set_gcId(_shared_gc_info.gc_id().id());
     event.set_name(_shared_gc_info.name());
     event.set_cause((u2) _shared_gc_info.cause());
     event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
     event.set_longestPause(_shared_gc_info.longest_pause());
     event.set_starttime(_shared_gc_info.start_timestamp());
     event.set_endtime(_shared_gc_info.end_timestamp());
     event.commit();
   }
 }
 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
   EventGCReferenceStatistics e;
   if (e.should_commit()) {
       e.set_gcId(_shared_gc_info.gc_id().id());
       e.set_type((u1)type);
       e.set_count(count);
       e.commit();
   }
 }
 void GCTracer::send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype,
                                                       const MetaspaceChunkFreeListSummary& summary) const {
   EventMetaspaceChunkFreeListSummary e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_when(when);
     e.set_metadataType(mdtype);
     e.set_specializedChunks(summary.num_specialized_chunks());
     e.set_specializedChunksTotalSize(summary.specialized_chunks_size_in_bytes());
     e.set_smallChunks(summary.num_small_chunks());
     e.set_smallChunksTotalSize(summary.small_chunks_size_in_bytes());
     e.set_mediumChunks(summary.num_medium_chunks());
     e.set_mediumChunksTotalSize(summary.medium_chunks_size_in_bytes());
     e.set_humongousChunks(summary.num_humongous_chunks());
     e.set_humongousChunksTotalSize(summary.humongous_chunks_size_in_bytes());
     e.commit();
   }
 }
 void ParallelOldTracer::send_parallel_old_event() const {
   EventGCParallelOld e(UNTIMED);
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
     e.commit();
   }
 }
 void YoungGCTracer::send_young_gc_event() const {
   EventGCYoungGarbageCollection e(UNTIMED);
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_tenuringThreshold(_tenuring_threshold);
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
     e.commit();
   }
 }
 void OldGCTracer::send_old_gc_event() const {
   EventGCOldGarbageCollection e(UNTIMED);
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
     e.commit();
   }
 }
 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {
   TraceStructCopyFailed failed_info;
   failed_info.set_objectCount(cf_info.failed_count());
   failed_info.set_firstSize(cf_info.first_size());
   failed_info.set_smallestSize(cf_info.smallest_size());
   failed_info.set_totalSize(cf_info.total_size());
   return failed_info;
 }
 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
   EventPromotionFailed e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_data(to_trace_struct(pf_info));
     e.set_thread(pf_info.thread()->thread_id());
     e.commit();
   }
 }
 // Common to CMS and G1
 void OldGCTracer::send_concurrent_mode_failure_event() {
   EventConcurrentModeFailure e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.commit();
   }
 }
 #if INCLUDE_ALL_GCS
 void G1NewTracer::send_g1_young_gc_event() {
   EventGCG1GarbageCollection e(UNTIMED);
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_type(_g1_young_gc_info.type());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
     e.commit();
   }
 }
 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
   EventEvacuationInfo e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_cSetRegions(info->collectionset_regions());
     e.set_cSetUsedBefore(info->collectionset_used_before());
     e.set_cSetUsedAfter(info->collectionset_used_after());
     e.set_allocationRegions(info->allocation_regions());
     e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());
     e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());
     e.set_bytesCopied(info->bytes_copied());
     e.set_regionsFreed(info->regions_freed());
     e.commit();
   }
 }
 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
   EventEvacuationFailed e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_data(to_trace_struct(ef_info));
     e.commit();
   }
 }
 #endif
 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {
   TraceStructVirtualSpace space;
   space.set_start((TraceAddress)summary.start());
   space.set_committedEnd((TraceAddress)summary.committed_end());
   space.set_committedSize(summary.committed_size());
   space.set_reservedEnd((TraceAddress)summary.reserved_end());
   space.set_reservedSize(summary.reserved_size());
   return space;
 }
 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {
   TraceStructObjectSpace space;
   space.set_start((TraceAddress)summary.start());
   space.set_end((TraceAddress)summary.end());
   space.set_used(summary.used());
   space.set_size(summary.size());
   return space;
 }
 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
   GCId _gc_id;
   GCWhen::Type _when;
  public:
   GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
   void visit(const GCHeapSummary* heap_summary) const {
     const VirtualSpaceSummary& heap_space = heap_summary->heap();
     EventGCHeapSummary e;
     if (e.should_commit()) {
       e.set_gcId(_gc_id.id());
       e.set_when((u1)_when);
       e.set_heapSpace(to_trace_struct(heap_space));
       e.set_heapUsed(heap_summary->used());
       e.commit();
     }
   }
   void visit(const PSHeapSummary* ps_heap_summary) const {
     visit((GCHeapSummary*)ps_heap_summary);
     const VirtualSpaceSummary& old_summary = ps_heap_summary->old();
     const SpaceSummary& old_space = ps_heap_summary->old_space();
     const VirtualSpaceSummary& young_summary = ps_heap_summary->young();
     const SpaceSummary& eden_space = ps_heap_summary->eden();
     const SpaceSummary& from_space = ps_heap_summary->from();
     const SpaceSummary& to_space = ps_heap_summary->to();
     EventPSHeapSummary e;
     if (e.should_commit()) {
       e.set_gcId(_gc_id.id());
       e.set_when((u1)_when);
       e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
       e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));
       e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));
       e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));
       e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));
       e.set_toSpace(to_trace_struct(ps_heap_summary->to()));
       e.commit();
     }
   }
 };
 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
   GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
   heap_summary.accept(&visitor);
 }
 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {
   TraceStructMetaspaceSizes meta_sizes;
   meta_sizes.set_committed(sizes.committed());
   meta_sizes.set_used(sizes.used());
   meta_sizes.set_reserved(sizes.reserved());
   return meta_sizes;
 }
 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
   EventMetaspaceSummary e;
   if (e.should_commit()) {
     e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_when((u1) when);
     e.set_gcThreshold(meta_space_summary.capacity_until_GC());
     e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
     e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));
     e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));
     e.commit();
   }
 }
 class PhaseSender : public PhaseVisitor {
   GCId _gc_id;
  public:
   PhaseSender(GCId gc_id) : _gc_id(gc_id) {}
   template<typename T>
   void send_phase(PausePhase* pause) {
     T event(UNTIMED);
     if (event.should_commit()) {
       event.set_gcId(_gc_id.id());
       event.set_name(pause->name());
       event.set_starttime(pause->start());
       event.set_endtime(pause->end());
       event.commit();
     }
   }
   void visit(GCPhase* pause) { ShouldNotReachHere(); }
   void visit(ConcurrentPhase* pause) { Unimplemented(); }
   void visit(PausePhase* pause) {
     assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");
     switch (pause->level()) {
       case 0: send_phase<EventGCPhasePause>(pause); break;
       case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;
       case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;
       case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;
       default: /* Ignore sending this phase */ break;
     }
   }
 };
 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
   PhaseSender phase_reporter(_shared_gc_info.gc_id());
   TimePartitionPhasesIterator iter(time_partitions);
   while (iter.has_next()) {
     GCPhase* phase = iter.next();
     phase->accept(&phase_reporter);
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/shared/gcTraceSend.cpp@9f28a4cac6d9 (annotated)

src/share/vm/gc_implementation/shared/gcTraceSend.cpp