Mercurial > hg > truffle
diff src/share/vm/gc_implementation/shared/gcTrace.cpp @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
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date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | |
children | 2cbc8f3011a0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/gc_implementation/shared/gcTrace.cpp Mon Jun 10 11:30:51 2013 +0200 @@ -0,0 +1,207 @@ +/* + * 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/copyFailedInfo.hpp" +#include "memory/heapInspection.hpp" +#include "memory/referenceProcessorStats.hpp" +#include "utilities/globalDefinitions.hpp" + +#if INCLUDE_ALL_GCS +#include "gc_implementation/g1/evacuationInfo.hpp" +#endif + +#define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?") +#define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?") + +static jlong GCTracer_next_gc_id = 0; +static GCId create_new_gc_id() { + return GCTracer_next_gc_id++; +} + +void GCTracer::report_gc_start_impl(GCCause::Cause cause, jlong timestamp) { + assert_unset_gc_id(); + + GCId gc_id = create_new_gc_id(); + _shared_gc_info.set_id(gc_id); + _shared_gc_info.set_cause(cause); + _shared_gc_info.set_start_timestamp(timestamp); +} + +void GCTracer::report_gc_start(GCCause::Cause cause, jlong timestamp) { + assert_unset_gc_id(); + + report_gc_start_impl(cause, timestamp); +} + +bool GCTracer::has_reported_gc_start() const { + return _shared_gc_info.id() != SharedGCInfo::UNSET_GCID; +} + +void GCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + + _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses()); + _shared_gc_info.set_longest_pause(time_partitions->longest_pause()); + _shared_gc_info.set_end_timestamp(timestamp); + + send_phase_events(time_partitions); + send_garbage_collection_event(); +} + +void GCTracer::report_gc_end(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + + report_gc_end_impl(timestamp, time_partitions); + + _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID); +} + +void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const { + assert_set_gc_id(); + + send_reference_stats_event(REF_SOFT, rps.soft_count()); + send_reference_stats_event(REF_WEAK, rps.weak_count()); + send_reference_stats_event(REF_FINAL, rps.final_count()); + send_reference_stats_event(REF_PHANTOM, rps.phantom_count()); +} + +#if INCLUDE_SERVICES +void ObjectCountEventSenderClosure::do_cinfo(KlassInfoEntry* entry) { + if (should_send_event(entry)) { + send_event(entry); + } +} + +void ObjectCountEventSenderClosure::send_event(KlassInfoEntry* entry) { + _gc_tracer->send_object_count_after_gc_event(entry->klass(), entry->count(), + entry->words() * BytesPerWord); +} + +bool ObjectCountEventSenderClosure::should_send_event(KlassInfoEntry* entry) const { + double percentage_of_heap = ((double) entry->words()) / _total_size_in_words; + return percentage_of_heap > _size_threshold_percentage; +} + +void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) { + assert_set_gc_id(); + + if (should_send_object_count_after_gc_event()) { + ResourceMark rm; + + KlassInfoTable cit(false); + if (!cit.allocation_failed()) { + HeapInspection hi(false, false, false, NULL); + hi.populate_table(&cit, is_alive_cl); + + ObjectCountEventSenderClosure event_sender(this, cit.size_of_instances_in_words()); + cit.iterate(&event_sender); + } + } +} +#endif + +void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const { + assert_set_gc_id(); + + send_gc_heap_summary_event(when, heap_summary); + send_meta_space_summary_event(when, meta_space_summary); +} + +void YoungGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported"); + + GCTracer::report_gc_end_impl(timestamp, time_partitions); + send_young_gc_event(); + + _tenuring_threshold = UNSET_TENURING_THRESHOLD; +} + +void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) { + assert_set_gc_id(); + + send_promotion_failed_event(pf_info); +} + +void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) { + _tenuring_threshold = tenuring_threshold; +} + +void OldGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + + GCTracer::report_gc_end_impl(timestamp, time_partitions); + send_old_gc_event(); +} + +void ParallelOldTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + + OldGCTracer::report_gc_end_impl(timestamp, time_partitions); + send_parallel_old_event(); +} + +void ParallelOldTracer::report_dense_prefix(void* dense_prefix) { + assert_set_gc_id(); + + _parallel_old_gc_info.report_dense_prefix(dense_prefix); +} + +void OldGCTracer::report_concurrent_mode_failure() { + assert_set_gc_id(); + + send_concurrent_mode_failure_event(); +} + +#if INCLUDE_ALL_GCS +void G1NewTracer::report_yc_type(G1YCType type) { + assert_set_gc_id(); + + _g1_young_gc_info.set_type(type); +} + +void G1NewTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) { + assert_set_gc_id(); + + YoungGCTracer::report_gc_end_impl(timestamp, time_partitions); + send_g1_young_gc_event(); +} + +void G1NewTracer::report_evacuation_info(EvacuationInfo* info) { + assert_set_gc_id(); + + send_evacuation_info_event(info); +} + +void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) { + assert_set_gc_id(); + + send_evacuation_failed_event(ef_info); + ef_info.reset(); +} +#endif