sla@5237: /*
sla@5237:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
sla@5237:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
sla@5237:  *
sla@5237:  * This code is free software; you can redistribute it and/or modify it
sla@5237:  * under the terms of the GNU General Public License version 2 only, as
sla@5237:  * published by the Free Software Foundation.
sla@5237:  *
sla@5237:  * This code is distributed in the hope that it will be useful, but WITHOUT
sla@5237:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
sla@5237:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
sla@5237:  * version 2 for more details (a copy is included in the LICENSE file that
sla@5237:  * accompanied this code).
sla@5237:  *
sla@5237:  * You should have received a copy of the GNU General Public License version
sla@5237:  * 2 along with this work; if not, write to the Free Software Foundation,
sla@5237:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
sla@5237:  *
sla@5237:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
sla@5237:  * or visit www.oracle.com if you need additional information or have any
sla@5237:  * questions.
sla@5237:  *
sla@5237:  */
sla@5237: 
sla@5237: #include "precompiled.hpp"
ehelin@5386: #include "gc_implementation/shared/copyFailedInfo.hpp"
sla@5237: #include "gc_implementation/shared/gcHeapSummary.hpp"
brutisso@6904: #include "gc_implementation/shared/gcId.hpp"
sla@5237: #include "gc_implementation/shared/gcTimer.hpp"
sla@5237: #include "gc_implementation/shared/gcTrace.hpp"
ehelin@5386: #include "gc_implementation/shared/objectCountEventSender.hpp"
sla@5237: #include "memory/heapInspection.hpp"
sla@5237: #include "memory/referenceProcessorStats.hpp"
ehelin@5388: #include "runtime/os.hpp"
sla@5237: #include "utilities/globalDefinitions.hpp"
mgronlun@6131: #include "utilities/ticks.inline.hpp"
sla@5237: 
sla@5237: #if INCLUDE_ALL_GCS
sla@5237: #include "gc_implementation/g1/evacuationInfo.hpp"
sla@5237: #endif
sla@5237: 
brutisso@6904: #define assert_unset_gc_id() assert(_shared_gc_info.gc_id().is_undefined(), "GC already started?")
brutisso@6904: #define assert_set_gc_id() assert(!_shared_gc_info.gc_id().is_undefined(), "GC not started?")
sla@5237: 
mgronlun@6131: void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
sla@5237:   assert_unset_gc_id();
sla@5237: 
brutisso@6904:   GCId gc_id = GCId::create();
brutisso@6904:   _shared_gc_info.set_gc_id(gc_id);
sla@5237:   _shared_gc_info.set_cause(cause);
sla@5237:   _shared_gc_info.set_start_timestamp(timestamp);
sla@5237: }
sla@5237: 
mgronlun@6131: void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) {
sla@5237:   assert_unset_gc_id();
sla@5237: 
sla@5237:   report_gc_start_impl(cause, timestamp);
sla@5237: }
sla@5237: 
sla@5237: bool GCTracer::has_reported_gc_start() const {
brutisso@6904:   return !_shared_gc_info.gc_id().is_undefined();
sla@5237: }
sla@5237: 
mgronlun@6131: void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses());
sla@5237:   _shared_gc_info.set_longest_pause(time_partitions->longest_pause());
sla@5237:   _shared_gc_info.set_end_timestamp(timestamp);
sla@5237: 
sla@5237:   send_phase_events(time_partitions);
sla@5237:   send_garbage_collection_event();
sla@5237: }
sla@5237: 
mgronlun@6131: void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   report_gc_end_impl(timestamp, time_partitions);
sla@5237: 
brutisso@6904:   _shared_gc_info.set_gc_id(GCId::undefined());
sla@5237: }
sla@5237: 
sla@5237: void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_reference_stats_event(REF_SOFT, rps.soft_count());
sla@5237:   send_reference_stats_event(REF_WEAK, rps.weak_count());
sla@5237:   send_reference_stats_event(REF_FINAL, rps.final_count());
sla@5237:   send_reference_stats_event(REF_PHANTOM, rps.phantom_count());
sla@5237: }
sla@5237: 
sla@5237: #if INCLUDE_SERVICES
ehelin@5386: class ObjectCountEventSenderClosure : public KlassInfoClosure {
ehelin@5386:   const GCId _gc_id;
ehelin@5386:   const double _size_threshold_percentage;
ehelin@5386:   const size_t _total_size_in_words;
mgronlun@6131:   const Ticks _timestamp;
ehelin@5386: 
ehelin@5386:  public:
mgronlun@6131:   ObjectCountEventSenderClosure(GCId gc_id, size_t total_size_in_words, const Ticks& timestamp) :
ehelin@5386:     _gc_id(gc_id),
ehelin@5386:     _size_threshold_percentage(ObjectCountCutOffPercent / 100),
ehelin@5388:     _total_size_in_words(total_size_in_words),
ehelin@5388:     _timestamp(timestamp)
ehelin@5386:   {}
ehelin@5386: 
ehelin@5386:   virtual void do_cinfo(KlassInfoEntry* entry) {
ehelin@5386:     if (should_send_event(entry)) {
ehelin@5388:       ObjectCountEventSender::send(entry, _gc_id, _timestamp);
ehelin@5386:     }
sla@5237:   }
sla@5237: 
ehelin@5386:  private:
ehelin@5386:   bool should_send_event(const KlassInfoEntry* entry) const {
ehelin@5386:     double percentage_of_heap = ((double) entry->words()) / _total_size_in_words;
ehelin@5386:     return percentage_of_heap >= _size_threshold_percentage;
ehelin@5386:   }
ehelin@5386: };
sla@5237: 
sla@5237: void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) {
sla@5237:   assert_set_gc_id();
ehelin@5386:   assert(is_alive_cl != NULL, "Must supply function to check liveness");
sla@5237: 
ehelin@5386:   if (ObjectCountEventSender::should_send_event()) {
sla@5237:     ResourceMark rm;
sla@5237: 
sla@5237:     KlassInfoTable cit(false);
sla@5237:     if (!cit.allocation_failed()) {
sla@5237:       HeapInspection hi(false, false, false, NULL);
sla@5237:       hi.populate_table(&cit, is_alive_cl);
brutisso@6904:       ObjectCountEventSenderClosure event_sender(_shared_gc_info.gc_id(), cit.size_of_instances_in_words(), Ticks::now());
sla@5237:       cit.iterate(&event_sender);
sla@5237:     }
sla@5237:   }
sla@5237: }
ehelin@5386: #endif // INCLUDE_SERVICES
sla@5237: 
ehelin@6420: void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_gc_heap_summary_event(when, heap_summary);
ehelin@6420: }
ehelin@6420: 
ehelin@6420: void GCTracer::report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& summary) const {
ehelin@6420:   assert_set_gc_id();
ehelin@6420: 
ehelin@6420:   send_meta_space_summary_event(when, summary);
ehelin@6420: 
ehelin@6420:   send_metaspace_chunk_free_list_summary(when, Metaspace::NonClassType, summary.metaspace_chunk_free_list_summary());
ehelin@6420:   if (UseCompressedClassPointers) {
ehelin@6420:     send_metaspace_chunk_free_list_summary(when, Metaspace::ClassType, summary.class_chunk_free_list_summary());
ehelin@6420:   }
sla@5237: }
sla@5237: 
mgronlun@6131: void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237:   assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported");
sla@5237: 
sla@5237:   GCTracer::report_gc_end_impl(timestamp, time_partitions);
sla@5237:   send_young_gc_event();
sla@5237: 
sla@5237:   _tenuring_threshold = UNSET_TENURING_THRESHOLD;
sla@5237: }
sla@5237: 
sla@5237: void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_promotion_failed_event(pf_info);
sla@5237: }
sla@5237: 
sla@5237: void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) {
sla@5237:   _tenuring_threshold = tenuring_threshold;
sla@5237: }
sla@5237: 
mgronlun@6131: void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   GCTracer::report_gc_end_impl(timestamp, time_partitions);
sla@5237:   send_old_gc_event();
sla@5237: }
sla@5237: 
mgronlun@6131: void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   OldGCTracer::report_gc_end_impl(timestamp, time_partitions);
sla@5237:   send_parallel_old_event();
sla@5237: }
sla@5237: 
sla@5237: void ParallelOldTracer::report_dense_prefix(void* dense_prefix) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   _parallel_old_gc_info.report_dense_prefix(dense_prefix);
sla@5237: }
sla@5237: 
sla@5237: void OldGCTracer::report_concurrent_mode_failure() {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_concurrent_mode_failure_event();
sla@5237: }
sla@5237: 
sla@5237: #if INCLUDE_ALL_GCS
sla@5237: void G1NewTracer::report_yc_type(G1YCType type) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   _g1_young_gc_info.set_type(type);
sla@5237: }
sla@5237: 
mgronlun@6131: void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   YoungGCTracer::report_gc_end_impl(timestamp, time_partitions);
sla@5237:   send_g1_young_gc_event();
sla@5237: }
sla@5237: 
sla@5237: void G1NewTracer::report_evacuation_info(EvacuationInfo* info) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_evacuation_info_event(info);
sla@5237: }
sla@5237: 
sla@5237: void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) {
sla@5237:   assert_set_gc_id();
sla@5237: 
sla@5237:   send_evacuation_failed_event(ef_info);
sla@5237:   ef_info.reset();
sla@5237: }
sla@5237: #endif