aoqi@0: /*
aoqi@0:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "gc_implementation/shared/copyFailedInfo.hpp"
aoqi@0: #include "gc_implementation/shared/gcHeapSummary.hpp"
brutisso@6904: #include "gc_implementation/shared/gcId.hpp"
aoqi@0: #include "gc_implementation/shared/gcTimer.hpp"
aoqi@0: #include "gc_implementation/shared/gcTrace.hpp"
aoqi@0: #include "gc_implementation/shared/objectCountEventSender.hpp"
aoqi@0: #include "memory/heapInspection.hpp"
aoqi@0: #include "memory/referenceProcessorStats.hpp"
aoqi@0: #include "runtime/os.hpp"
aoqi@0: #include "utilities/globalDefinitions.hpp"
aoqi@0: #include "utilities/ticks.inline.hpp"
aoqi@0: 
aoqi@0: #if INCLUDE_ALL_GCS
aoqi@0: #include "gc_implementation/g1/evacuationInfo.hpp"
aoqi@0: #endif
aoqi@0: 
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?")
aoqi@0: 
aoqi@0: void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
aoqi@0:   assert_unset_gc_id();
aoqi@0: 
brutisso@6904:   GCId gc_id = GCId::create();
brutisso@6904:   _shared_gc_info.set_gc_id(gc_id);
aoqi@0:   _shared_gc_info.set_cause(cause);
aoqi@0:   _shared_gc_info.set_start_timestamp(timestamp);
aoqi@0: }
aoqi@0: 
aoqi@0: void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) {
aoqi@0:   assert_unset_gc_id();
aoqi@0: 
aoqi@0:   report_gc_start_impl(cause, timestamp);
aoqi@0: }
aoqi@0: 
aoqi@0: bool GCTracer::has_reported_gc_start() const {
brutisso@6904:   return !_shared_gc_info.gc_id().is_undefined();
aoqi@0: }
aoqi@0: 
aoqi@0: void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses());
aoqi@0:   _shared_gc_info.set_longest_pause(time_partitions->longest_pause());
aoqi@0:   _shared_gc_info.set_end_timestamp(timestamp);
aoqi@0: 
aoqi@0:   send_phase_events(time_partitions);
aoqi@0:   send_garbage_collection_event();
aoqi@0: }
aoqi@0: 
aoqi@0: void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   report_gc_end_impl(timestamp, time_partitions);
aoqi@0: 
brutisso@6904:   _shared_gc_info.set_gc_id(GCId::undefined());
aoqi@0: }
aoqi@0: 
aoqi@0: void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_reference_stats_event(REF_SOFT, rps.soft_count());
aoqi@0:   send_reference_stats_event(REF_WEAK, rps.weak_count());
aoqi@0:   send_reference_stats_event(REF_FINAL, rps.final_count());
aoqi@0:   send_reference_stats_event(REF_PHANTOM, rps.phantom_count());
aoqi@0: }
aoqi@0: 
aoqi@0: #if INCLUDE_SERVICES
aoqi@0: class ObjectCountEventSenderClosure : public KlassInfoClosure {
aoqi@0:   const GCId _gc_id;
aoqi@0:   const double _size_threshold_percentage;
aoqi@0:   const size_t _total_size_in_words;
aoqi@0:   const Ticks _timestamp;
aoqi@0: 
aoqi@0:  public:
aoqi@0:   ObjectCountEventSenderClosure(GCId gc_id, size_t total_size_in_words, const Ticks& timestamp) :
aoqi@0:     _gc_id(gc_id),
aoqi@0:     _size_threshold_percentage(ObjectCountCutOffPercent / 100),
aoqi@0:     _total_size_in_words(total_size_in_words),
aoqi@0:     _timestamp(timestamp)
aoqi@0:   {}
aoqi@0: 
aoqi@0:   virtual void do_cinfo(KlassInfoEntry* entry) {
aoqi@0:     if (should_send_event(entry)) {
aoqi@0:       ObjectCountEventSender::send(entry, _gc_id, _timestamp);
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:  private:
aoqi@0:   bool should_send_event(const KlassInfoEntry* entry) const {
aoqi@0:     double percentage_of_heap = ((double) entry->words()) / _total_size_in_words;
aoqi@0:     return percentage_of_heap >= _size_threshold_percentage;
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) {
aoqi@0:   assert_set_gc_id();
aoqi@0:   assert(is_alive_cl != NULL, "Must supply function to check liveness");
aoqi@0: 
aoqi@0:   if (ObjectCountEventSender::should_send_event()) {
aoqi@0:     ResourceMark rm;
aoqi@0: 
aoqi@0:     KlassInfoTable cit(false);
aoqi@0:     if (!cit.allocation_failed()) {
aoqi@0:       HeapInspection hi(false, false, false, NULL);
aoqi@0:       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());
aoqi@0:       cit.iterate(&event_sender);
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: #endif // INCLUDE_SERVICES
aoqi@0: 
aoqi@0: void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_gc_heap_summary_event(when, heap_summary);
aoqi@0: }
aoqi@0: 
aoqi@0: void GCTracer::report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& summary) const {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_meta_space_summary_event(when, summary);
aoqi@0: 
aoqi@0:   send_metaspace_chunk_free_list_summary(when, Metaspace::NonClassType, summary.metaspace_chunk_free_list_summary());
aoqi@0:   if (UseCompressedClassPointers) {
aoqi@0:     send_metaspace_chunk_free_list_summary(when, Metaspace::ClassType, summary.class_chunk_free_list_summary());
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0:   assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported");
aoqi@0: 
aoqi@0:   GCTracer::report_gc_end_impl(timestamp, time_partitions);
aoqi@0:   send_young_gc_event();
aoqi@0: 
aoqi@0:   _tenuring_threshold = UNSET_TENURING_THRESHOLD;
aoqi@0: }
aoqi@0: 
aoqi@0: void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_promotion_failed_event(pf_info);
aoqi@0: }
aoqi@0: 
aoqi@0: void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) {
aoqi@0:   _tenuring_threshold = tenuring_threshold;
aoqi@0: }
aoqi@0: 
aoqi@0: void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   GCTracer::report_gc_end_impl(timestamp, time_partitions);
aoqi@0:   send_old_gc_event();
aoqi@0: }
aoqi@0: 
aoqi@0: void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   OldGCTracer::report_gc_end_impl(timestamp, time_partitions);
aoqi@0:   send_parallel_old_event();
aoqi@0: }
aoqi@0: 
aoqi@0: void ParallelOldTracer::report_dense_prefix(void* dense_prefix) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   _parallel_old_gc_info.report_dense_prefix(dense_prefix);
aoqi@0: }
aoqi@0: 
aoqi@0: void OldGCTracer::report_concurrent_mode_failure() {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_concurrent_mode_failure_event();
aoqi@0: }
aoqi@0: 
aoqi@0: #if INCLUDE_ALL_GCS
aoqi@0: void G1NewTracer::report_yc_type(G1YCType type) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   _g1_young_gc_info.set_type(type);
aoqi@0: }
aoqi@0: 
aoqi@0: void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   YoungGCTracer::report_gc_end_impl(timestamp, time_partitions);
aoqi@0:   send_g1_young_gc_event();
aoqi@0: }
aoqi@0: 
aoqi@0: void G1NewTracer::report_evacuation_info(EvacuationInfo* info) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_evacuation_info_event(info);
aoqi@0: }
aoqi@0: 
aoqi@0: void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) {
aoqi@0:   assert_set_gc_id();
aoqi@0: 
aoqi@0:   send_evacuation_failed_event(ef_info);
aoqi@0:   ef_info.reset();
aoqi@0: }
aoqi@0: #endif