jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcTraceSend.cpp@55a0da3d420b

8027675: Full collections with Serial slower in JDK 8 compared to 7u40
Summary: Reduced the number of calls to follow_class_loader and instead marked and pushed the klass holder directly. Also removed unneeded calls to adjust_klass.
Reviewed-by: coleenp, jmasa, mgerdin, tschatzl

     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  */

    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

    39 // All GC dependencies against the trace framework is contained within this file.

    41 typedef uintptr_t TraceAddress;

    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 }

    57 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {

    58   EventGCReferenceStatistics e(UNTIMED);

    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.set_endtime(os::elapsed_counter());

    64       e.commit();

    65   }

    66 }

    68 void ParallelOldTracer::send_parallel_old_event() const {

    69   EventGCParallelOld e(UNTIMED);

    70   if (e.should_commit()) {

    71     e.set_gcId(_shared_gc_info.id());

    72     e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());

    73     e.set_starttime(_shared_gc_info.start_timestamp());

    74     e.set_endtime(_shared_gc_info.end_timestamp());

    75     e.commit();

    76   }

    77 }

    79 void YoungGCTracer::send_young_gc_event() const {

    80   EventGCYoungGarbageCollection e(UNTIMED);

    81   if (e.should_commit()) {

    82     e.set_gcId(_shared_gc_info.id());

    83     e.set_tenuringThreshold(_tenuring_threshold);

    84     e.set_starttime(_shared_gc_info.start_timestamp());

    85     e.set_endtime(_shared_gc_info.end_timestamp());

    86     e.commit();

    87   }

    88 }

    90 void OldGCTracer::send_old_gc_event() const {

    91   EventGCOldGarbageCollection e(UNTIMED);

    92   if (e.should_commit()) {

    93     e.set_gcId(_shared_gc_info.id());

    94     e.set_starttime(_shared_gc_info.start_timestamp());

    95     e.set_endtime(_shared_gc_info.end_timestamp());

    96     e.commit();

    97   }

    98 }

   100 static TraceStructCopyFailed to_trace_struct(const CopyFailedInfo& cf_info) {

   101   TraceStructCopyFailed failed_info;

   102   failed_info.set_objectCount(cf_info.failed_count());

   103   failed_info.set_firstSize(cf_info.first_size());

   104   failed_info.set_smallestSize(cf_info.smallest_size());

   105   failed_info.set_totalSize(cf_info.total_size());

   106   return failed_info;

   107 }

   109 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {

   110   EventPromotionFailed e(UNTIMED);

   111   if (e.should_commit()) {

   112     e.set_gcId(_shared_gc_info.id());

   113     e.set_data(to_trace_struct(pf_info));

   114     e.set_thread(pf_info.thread()->thread_id());

   115     e.set_endtime(os::elapsed_counter());

   116     e.commit();

   117   }

   118 }

   120 // Common to CMS and G1

   121 void OldGCTracer::send_concurrent_mode_failure_event() {

   122   EventConcurrentModeFailure e(UNTIMED);

   123   if (e.should_commit()) {

   124     e.set_gcId(_shared_gc_info.id());

   125     e.set_endtime(os::elapsed_counter());

   126     e.commit();

   127   }

   128 }

   130 #if INCLUDE_ALL_GCS

   131 void G1NewTracer::send_g1_young_gc_event() {

   132   EventGCG1GarbageCollection e(UNTIMED);

   133   if (e.should_commit()) {

   134     e.set_gcId(_shared_gc_info.id());

   135     e.set_type(_g1_young_gc_info.type());

   136     e.set_starttime(_shared_gc_info.start_timestamp());

   137     e.set_endtime(_shared_gc_info.end_timestamp());

   138     e.commit();

   139   }

   140 }

   142 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {

   143   EventEvacuationInfo e(UNTIMED);

   144   if (e.should_commit()) {

   145     e.set_gcId(_shared_gc_info.id());

   146     e.set_cSetRegions(info->collectionset_regions());

   147     e.set_cSetUsedBefore(info->collectionset_used_before());

   148     e.set_cSetUsedAfter(info->collectionset_used_after());

   149     e.set_allocationRegions(info->allocation_regions());

   150     e.set_allocRegionsUsedBefore(info->alloc_regions_used_before());

   151     e.set_allocRegionsUsedAfter(info->alloc_regions_used_before() + info->bytes_copied());

   152     e.set_bytesCopied(info->bytes_copied());

   153     e.set_regionsFreed(info->regions_freed());

   154     e.set_endtime(os::elapsed_counter());

   155     e.commit();

   156   }

   157 }

   159 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {

   160   EventEvacuationFailed e(UNTIMED);

   161   if (e.should_commit()) {

   162     e.set_gcId(_shared_gc_info.id());

   163     e.set_data(to_trace_struct(ef_info));

   164     e.set_endtime(os::elapsed_counter());

   165     e.commit();

   166   }

   167 }

   168 #endif

   170 static TraceStructVirtualSpace to_trace_struct(const VirtualSpaceSummary& summary) {

   171   TraceStructVirtualSpace space;

   172   space.set_start((TraceAddress)summary.start());

   173   space.set_committedEnd((TraceAddress)summary.committed_end());

   174   space.set_committedSize(summary.committed_size());

   175   space.set_reservedEnd((TraceAddress)summary.reserved_end());

   176   space.set_reservedSize(summary.reserved_size());

   177   return space;

   178 }

   180 static TraceStructObjectSpace to_trace_struct(const SpaceSummary& summary) {

   181   TraceStructObjectSpace space;

   182   space.set_start((TraceAddress)summary.start());

   183   space.set_end((TraceAddress)summary.end());

   184   space.set_used(summary.used());

   185   space.set_size(summary.size());

   186   return space;

   187 }

   189 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {

   190   GCId _id;

   191   GCWhen::Type _when;

   192  public:

   193   GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {}

   195   void visit(const GCHeapSummary* heap_summary) const {

   196     const VirtualSpaceSummary& heap_space = heap_summary->heap();

   198     EventGCHeapSummary e(UNTIMED);

   199     if (e.should_commit()) {

   200       e.set_gcId(_id);

   201       e.set_when((u1)_when);

   202       e.set_heapSpace(to_trace_struct(heap_space));

   203       e.set_heapUsed(heap_summary->used());

   204       e.set_endtime(os::elapsed_counter());

   205       e.commit();

   206     }

   207   }

   209   void visit(const PSHeapSummary* ps_heap_summary) const {

   210     visit((GCHeapSummary*)ps_heap_summary);

   212     const VirtualSpaceSummary& old_summary = ps_heap_summary->old();

   213     const SpaceSummary& old_space = ps_heap_summary->old_space();

   214     const VirtualSpaceSummary& young_summary = ps_heap_summary->young();

   215     const SpaceSummary& eden_space = ps_heap_summary->eden();

   216     const SpaceSummary& from_space = ps_heap_summary->from();

   217     const SpaceSummary& to_space = ps_heap_summary->to();

   219     EventPSHeapSummary e(UNTIMED);

   220     if (e.should_commit()) {

   221       e.set_gcId(_id);

   222       e.set_when((u1)_when);

   224       e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));

   225       e.set_oldObjectSpace(to_trace_struct(ps_heap_summary->old_space()));

   226       e.set_youngSpace(to_trace_struct(ps_heap_summary->young()));

   227       e.set_edenSpace(to_trace_struct(ps_heap_summary->eden()));

   228       e.set_fromSpace(to_trace_struct(ps_heap_summary->from()));

   229       e.set_toSpace(to_trace_struct(ps_heap_summary->to()));

   230       e.set_endtime(os::elapsed_counter());

   231       e.commit();

   232     }

   233   }

   234 };

   236 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {

   237   GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when);

   238   heap_summary.accept(&visitor);

   239 }

   241 static TraceStructMetaspaceSizes to_trace_struct(const MetaspaceSizes& sizes) {

   242   TraceStructMetaspaceSizes meta_sizes;

   244   meta_sizes.set_capacity(sizes.capacity());

   245   meta_sizes.set_used(sizes.used());

   246   meta_sizes.set_reserved(sizes.reserved());

   248   return meta_sizes;

   249 }

   251 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {

   252   EventMetaspaceSummary e(UNTIMED);

   253   if (e.should_commit()) {

   254     e.set_gcId(_shared_gc_info.id());

   255     e.set_when((u1) when);

   256     e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));

   257     e.set_dataSpace(to_trace_struct(meta_space_summary.data_space()));

   258     e.set_classSpace(to_trace_struct(meta_space_summary.class_space()));

   259     e.set_endtime(os::elapsed_counter());

   260     e.commit();

   261   }

   262 }

   264 class PhaseSender : public PhaseVisitor {

   265   GCId _gc_id;

   266  public:

   267   PhaseSender(GCId gc_id) : _gc_id(gc_id) {}

   269   template<typename T>

   270   void send_phase(PausePhase* pause) {

   271     T event(UNTIMED);

   272     if (event.should_commit()) {

   273       event.set_gcId(_gc_id);

   274       event.set_name(pause->name());

   275       event.set_starttime(pause->start());

   276       event.set_endtime(pause->end());

   277       event.commit();

   278     }

   279   }

   281   void visit(GCPhase* pause) { ShouldNotReachHere(); }

   282   void visit(ConcurrentPhase* pause) { Unimplemented(); }

   283   void visit(PausePhase* pause) {

   284     assert(PhasesStack::PHASE_LEVELS == 5, "Need more event types");

   286     switch (pause->level()) {

   287       case 0: send_phase<EventGCPhasePause>(pause); break;

   288       case 1: send_phase<EventGCPhasePauseLevel1>(pause); break;

   289       case 2: send_phase<EventGCPhasePauseLevel2>(pause); break;

   290       case 3: send_phase<EventGCPhasePauseLevel3>(pause); break;

   291       default: /* Ignore sending this phase */ break;

   292     }

   293   }

   294 };

   296 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {

   297   PhaseSender phase_reporter(_shared_gc_info.id());

   299   TimePartitionPhasesIterator iter(time_partitions);

   300   while (iter.has_next()) {

   301     GCPhase* phase = iter.next();

   302     phase->accept(&phase_reporter);

   303   }

   304 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/gcTraceSend.cpp@55a0da3d420b

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