rev 9286 : imported patch 8136679-jfr-event-for-dynamic-ihop

   1 /*
   2  * Copyright (c) 2012, 2015, 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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc/shared/copyFailedInfo.hpp"
  27 #include "gc/shared/gcHeapSummary.hpp"
  28 #include "gc/shared/gcId.hpp"
  29 #include "gc/shared/gcTimer.hpp"
  30 #include "gc/shared/gcTrace.hpp"
  31 #include "gc/shared/objectCountEventSender.hpp"
  32 #include "gc/shared/referenceProcessorStats.hpp"
  33 #include "memory/heapInspection.hpp"
  34 #include "memory/resourceArea.hpp"
  35 #include "runtime/os.hpp"
  36 #include "utilities/globalDefinitions.hpp"
  37 #include "utilities/macros.hpp"
  38 #include "utilities/ticks.inline.hpp"
  39 #if INCLUDE_ALL_GCS
  40 #include "gc/g1/evacuationInfo.hpp"
  41 #endif
  42 
  43 void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
  44   _shared_gc_info.set_cause(cause);
  45   _shared_gc_info.set_start_timestamp(timestamp);
  46 }
  47 
  48 void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) {
  49   report_gc_start_impl(cause, timestamp);
  50 }
  51 
  52 void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
  53   _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses());
  54   _shared_gc_info.set_longest_pause(time_partitions->longest_pause());
  55   _shared_gc_info.set_end_timestamp(timestamp);
  56 
  57   send_phase_events(time_partitions);
  58   send_garbage_collection_event();
  59 }
  60 
  61 void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) {
  62   report_gc_end_impl(timestamp, time_partitions);
  63 }
  64 
  65 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
  66   send_reference_stats_event(REF_SOFT, rps.soft_count());
  67   send_reference_stats_event(REF_WEAK, rps.weak_count());
  68   send_reference_stats_event(REF_FINAL, rps.final_count());
  69   send_reference_stats_event(REF_PHANTOM, rps.phantom_count());
  70 }
  71 
  72 #if INCLUDE_SERVICES
  73 class ObjectCountEventSenderClosure : public KlassInfoClosure {
  74   const double _size_threshold_percentage;
  75   const size_t _total_size_in_words;
  76   const Ticks _timestamp;
  77 
  78  public:
  79   ObjectCountEventSenderClosure(size_t total_size_in_words, const Ticks& timestamp) :
  80     _size_threshold_percentage(ObjectCountCutOffPercent / 100),
  81     _total_size_in_words(total_size_in_words),
  82     _timestamp(timestamp)
  83   {}
  84 
  85   virtual void do_cinfo(KlassInfoEntry* entry) {
  86     if (should_send_event(entry)) {
  87       ObjectCountEventSender::send(entry, _timestamp);
  88     }
  89   }
  90 
  91  private:
  92   bool should_send_event(const KlassInfoEntry* entry) const {
  93     double percentage_of_heap = ((double) entry->words()) / _total_size_in_words;
  94     return percentage_of_heap >= _size_threshold_percentage;
  95   }
  96 };
  97 
  98 void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) {
  99   assert(is_alive_cl != NULL, "Must supply function to check liveness");
 100 
 101   if (ObjectCountEventSender::should_send_event()) {
 102     ResourceMark rm;
 103 
 104     KlassInfoTable cit(false);
 105     if (!cit.allocation_failed()) {
 106       HeapInspection hi(false, false, false, NULL);
 107       hi.populate_table(&cit, is_alive_cl);
 108       ObjectCountEventSenderClosure event_sender(cit.size_of_instances_in_words(), Ticks::now());
 109       cit.iterate(&event_sender);
 110     }
 111   }
 112 }
 113 #endif // INCLUDE_SERVICES
 114 
 115 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
 116   send_gc_heap_summary_event(when, heap_summary);
 117 }
 118 
 119 void GCTracer::report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& summary) const {
 120   send_meta_space_summary_event(when, summary);
 121 
 122   send_metaspace_chunk_free_list_summary(when, Metaspace::NonClassType, summary.metaspace_chunk_free_list_summary());
 123   if (UseCompressedClassPointers) {
 124     send_metaspace_chunk_free_list_summary(when, Metaspace::ClassType, summary.class_chunk_free_list_summary());
 125   }
 126 }
 127 
 128 void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
 129   assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported");
 130 
 131   GCTracer::report_gc_end_impl(timestamp, time_partitions);
 132   send_young_gc_event();
 133 
 134   _tenuring_threshold = UNSET_TENURING_THRESHOLD;
 135 }
 136 
 137 void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) const {
 138   send_promotion_failed_event(pf_info);
 139 }
 140 
 141 void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) {
 142   _tenuring_threshold = tenuring_threshold;
 143 }
 144 
 145 bool YoungGCTracer::should_report_promotion_events() const {
 146   return should_report_promotion_in_new_plab_event() ||
 147           should_report_promotion_outside_plab_event();
 148 }
 149 
 150 bool YoungGCTracer::should_report_promotion_in_new_plab_event() const {
 151   return should_send_promotion_in_new_plab_event();
 152 }
 153 
 154 bool YoungGCTracer::should_report_promotion_outside_plab_event() const {
 155   return should_send_promotion_outside_plab_event();
 156 }
 157 
 158 void YoungGCTracer::report_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
 159                                                        uint age, bool tenured,
 160                                                        size_t plab_size) const {
 161   send_promotion_in_new_plab_event(klass, obj_size, age, tenured, plab_size);
 162 }
 163 
 164 void YoungGCTracer::report_promotion_outside_plab_event(Klass* klass, size_t obj_size,
 165                                                         uint age, bool tenured) const {
 166   send_promotion_outside_plab_event(klass, obj_size, age, tenured);
 167 }
 168 
 169 void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
 170   GCTracer::report_gc_end_impl(timestamp, time_partitions);
 171   send_old_gc_event();
 172 }
 173 
 174 void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
 175   OldGCTracer::report_gc_end_impl(timestamp, time_partitions);
 176   send_parallel_old_event();
 177 }
 178 
 179 void ParallelOldTracer::report_dense_prefix(void* dense_prefix) {
 180   _parallel_old_gc_info.report_dense_prefix(dense_prefix);
 181 }
 182 
 183 void OldGCTracer::report_concurrent_mode_failure() {
 184   send_concurrent_mode_failure_event();
 185 }
 186 
 187 #if INCLUDE_ALL_GCS
 188 void G1MMUTracer::report_mmu(double timeSlice, double gcTime, double maxTime) {
 189   send_g1_mmu_event(timeSlice, gcTime, maxTime);
 190 }
 191 
 192 void G1NewTracer::report_yc_type(G1YCType type) {
 193   _g1_young_gc_info.set_type(type);
 194 }
 195 
 196 void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
 197   YoungGCTracer::report_gc_end_impl(timestamp, time_partitions);
 198   send_g1_young_gc_event();
 199 }
 200 
 201 void G1NewTracer::report_evacuation_info(EvacuationInfo* info) {
 202   send_evacuation_info_event(info);
 203 }
 204 
 205 void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) {
 206   send_evacuation_failed_event(ef_info);
 207   ef_info.reset();
 208 }
 209 
 210 void G1NewTracer::report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const {
 211   send_young_evacuation_statistics(young_summary);
 212   send_old_evacuation_statistics(old_summary);
 213 }
 214 
 215 void G1NewTracer::report_basic_ihop_statistics(size_t threshold,
 216                                                size_t target_ccupancy,
 217                                                size_t current_occupancy,
 218                                                size_t last_allocation_size,
 219                                                double last_allocation_duration,
 220                                                double last_marking_length) {
 221   send_basic_ihop_statistics(threshold,
 222                              target_ccupancy,
 223                              current_occupancy,
 224                              last_allocation_size,
 225                              last_allocation_duration,
 226                              last_marking_length);
 227 }
 228 
 229 void G1NewTracer::report_adaptive_ihop_statistics(size_t additional_buffer_size,
 230                                                   double predicted_allocation_rate,
 231                                                   double predicted_marking_length,
 232                                                   bool prediction_active) {
 233   send_adaptive_ihop_statistics(additional_buffer_size,
 234                                 predicted_allocation_rate,
 235                                 predicted_marking_length,
 236                                 prediction_active);
 237 }
 238 
 239 #endif
--- EOF ---