rev 9314 : imported patch 8136679-jfr-event-for-dynamic-ihop
rev 9315 : imported patch sangheon-review

   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 #ifndef SHARE_VM_GC_SHARED_GCTRACE_HPP
  26 #define SHARE_VM_GC_SHARED_GCTRACE_HPP
  27 
  28 #include "gc/shared/copyFailedInfo.hpp"
  29 #include "gc/shared/gcCause.hpp"
  30 #include "gc/shared/gcId.hpp"
  31 #include "gc/shared/gcName.hpp"
  32 #include "gc/shared/gcWhen.hpp"
  33 #include "memory/allocation.hpp"
  34 #include "memory/metaspace.hpp"
  35 #include "memory/referenceType.hpp"
  36 #include "utilities/macros.hpp"
  37 #include "utilities/ticks.hpp"
  38 #if INCLUDE_ALL_GCS
  39 #include "gc/g1/g1YCTypes.hpp"
  40 #endif
  41 
  42 class EvacuationInfo;
  43 class GCHeapSummary;
  44 class MetaspaceChunkFreeListSummary;
  45 class MetaspaceSummary;
  46 class PSHeapSummary;
  47 class G1HeapSummary;
  48 class G1EvacSummary;
  49 class ReferenceProcessorStats;
  50 class TimePartitions;
  51 class BoolObjectClosure;
  52 
  53 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
  54  private:
  55   GCName _name;
  56   GCCause::Cause _cause;
  57   Ticks     _start_timestamp;
  58   Ticks     _end_timestamp;
  59   Tickspan  _sum_of_pauses;
  60   Tickspan  _longest_pause;
  61 
  62  public:
  63   SharedGCInfo(GCName name) :
  64     _name(name),
  65     _cause(GCCause::_last_gc_cause),
  66     _start_timestamp(),
  67     _end_timestamp(),
  68     _sum_of_pauses(),
  69     _longest_pause() {
  70   }
  71 
  72   void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }
  73   const Ticks start_timestamp() const { return _start_timestamp; }
  74 
  75   void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; }
  76   const Ticks end_timestamp() const { return _end_timestamp; }
  77 
  78   void set_name(GCName name) { _name = name; }
  79   GCName name() const { return _name; }
  80 
  81   void set_cause(GCCause::Cause cause) { _cause = cause; }
  82   GCCause::Cause cause() const { return _cause; }
  83 
  84   void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; }
  85   const Tickspan sum_of_pauses() const { return _sum_of_pauses; }
  86 
  87   void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; }
  88   const Tickspan longest_pause() const { return _longest_pause; }
  89 };
  90 
  91 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
  92   void* _dense_prefix;
  93  public:
  94   ParallelOldGCInfo() : _dense_prefix(NULL) {}
  95   void report_dense_prefix(void* addr) {
  96     _dense_prefix = addr;
  97   }
  98   void* dense_prefix() const { return _dense_prefix; }
  99 };
 100 
 101 #if INCLUDE_ALL_GCS
 102 
 103 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
 104   G1YCType _type;
 105  public:
 106   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
 107   void set_type(G1YCType type) {
 108     _type = type;
 109   }
 110   G1YCType type() const { return _type; }
 111 };
 112 
 113 #endif // INCLUDE_ALL_GCS
 114 
 115 class GCTracer : public ResourceObj {
 116  protected:
 117   SharedGCInfo _shared_gc_info;
 118 
 119  public:
 120   void report_gc_start(GCCause::Cause cause, const Ticks& timestamp);
 121   void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions);
 122   void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
 123   void report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& metaspace_summary) const;
 124   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
 125   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
 126 
 127  protected:
 128   GCTracer(GCName name) : _shared_gc_info(name) {}
 129   void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
 130   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 131 
 132  private:
 133   void send_garbage_collection_event() const;
 134   void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
 135   void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
 136   void send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype, const MetaspaceChunkFreeListSummary& summary) const;
 137   void send_reference_stats_event(ReferenceType type, size_t count) const;
 138   void send_phase_events(TimePartitions* time_partitions) const;
 139 };
 140 
 141 class YoungGCTracer : public GCTracer {
 142   static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
 143 
 144   uint _tenuring_threshold;
 145 
 146  protected:
 147   YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
 148   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 149 
 150  public:
 151   void report_promotion_failed(const PromotionFailedInfo& pf_info) const;
 152   void report_tenuring_threshold(const uint tenuring_threshold);
 153 
 154   /*
 155    * Methods for reporting Promotion in new or outside PLAB Events.
 156    *
 157    * The object age is always required as it is not certain that the mark word
 158    * of the oop can be trusted at this stage.
 159    *
 160    * obj_size is the size of the promoted object in bytes.
 161    *
 162    * tenured should be true if the object has been promoted to the old
 163    * space during this GC, if the object is copied to survivor space
 164    * from young space or survivor space (aging) tenured should be false.
 165    *
 166    * plab_size is the size of the newly allocated PLAB in bytes.
 167    */
 168   bool should_report_promotion_events() const;
 169   bool should_report_promotion_in_new_plab_event() const;
 170   bool should_report_promotion_outside_plab_event() const;
 171   void report_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
 172                                           uint age, bool tenured,
 173                                           size_t plab_size) const;
 174   void report_promotion_outside_plab_event(Klass* klass, size_t obj_size,
 175                                            uint age, bool tenured) const;
 176 
 177  private:
 178   void send_young_gc_event() const;
 179   void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
 180   bool should_send_promotion_in_new_plab_event() const;
 181   bool should_send_promotion_outside_plab_event() const;
 182   void send_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
 183                                         uint age, bool tenured,
 184                                         size_t plab_size) const;
 185   void send_promotion_outside_plab_event(Klass* klass, size_t obj_size,
 186                                          uint age, bool tenured) const;
 187 };
 188 
 189 class OldGCTracer : public GCTracer {
 190  protected:
 191   OldGCTracer(GCName name) : GCTracer(name) {}
 192   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 193 
 194  public:
 195   void report_concurrent_mode_failure();
 196 
 197  private:
 198   void send_old_gc_event() const;
 199   void send_concurrent_mode_failure_event();
 200 };
 201 
 202 class ParallelOldTracer : public OldGCTracer {
 203   ParallelOldGCInfo _parallel_old_gc_info;
 204 
 205  public:
 206   ParallelOldTracer() : OldGCTracer(ParallelOld) {}
 207   void report_dense_prefix(void* dense_prefix);
 208 
 209  protected:
 210   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 211 
 212  private:
 213   void send_parallel_old_event() const;
 214 };
 215 
 216 class SerialOldTracer : public OldGCTracer {
 217  public:
 218   SerialOldTracer() : OldGCTracer(SerialOld) {}
 219 };
 220 
 221 class ParallelScavengeTracer : public YoungGCTracer {
 222  public:
 223   ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
 224 };
 225 
 226 class DefNewTracer : public YoungGCTracer {
 227  public:
 228   DefNewTracer() : YoungGCTracer(DefNew) {}
 229 };
 230 
 231 class ParNewTracer : public YoungGCTracer {
 232  public:
 233   ParNewTracer() : YoungGCTracer(ParNew) {}
 234 };
 235 
 236 #if INCLUDE_ALL_GCS
 237 class G1MMUTracer : public AllStatic {
 238   static void send_g1_mmu_event(double timeSlice, double gcTime, double maxTime);
 239 
 240  public:
 241   static void report_mmu(double timeSlice, double gcTime, double maxTime);
 242 };
 243 
 244 class G1NewTracer : public YoungGCTracer {
 245   G1YoungGCInfo _g1_young_gc_info;
 246 
 247  public:
 248   G1NewTracer() : YoungGCTracer(G1New) {}
 249 
 250   void report_yc_type(G1YCType type);
 251   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 252   void report_evacuation_info(EvacuationInfo* info);
 253   void report_evacuation_failed(EvacuationFailedInfo& ef_info);
 254 
 255   void report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const;
 256 
 257   void report_basic_ihop_statistics(size_t threshold,
 258                                     size_t target_occupancy,
 259                                     size_t current_occupancy,
 260                                     size_t last_allocation_size,
 261                                     double last_allocation_duration,
 262                                     double last_marking_length);
 263   void report_adaptive_ihop_statistics(size_t additional_buffer_size,
 264                                        double predicted_allocation_rate,
 265                                        double predicted_marking_length,
 266                                        bool prediction_active);
 267  private:
 268   void send_g1_young_gc_event();
 269   void send_evacuation_info_event(EvacuationInfo* info);
 270   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
 271 
 272   void send_young_evacuation_statistics(const G1EvacSummary& summary) const;
 273   void send_old_evacuation_statistics(const G1EvacSummary& summary) const;
 274 
 275   void send_basic_ihop_statistics(size_t threshold,
 276                                   size_t target_occupancy,
 277                                   size_t current_occupancy,
 278                                   size_t last_allocation_size,
 279                                   double last_allocation_duration,
 280                                   double last_marking_length);
 281   void send_adaptive_ihop_statistics(size_t additional_buffer_size,
 282                                      double predicted_allocation_rate,
 283                                      double predicted_marking_length,
 284                                      bool prediction_active);
 285 };
 286 #endif
 287 
 288 class CMSTracer : public OldGCTracer {
 289  public:
 290   CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
 291 };
 292 
 293 class G1OldTracer : public OldGCTracer {
 294  public:
 295   G1OldTracer() : OldGCTracer(G1Old) {}
 296 };
 297 
 298 #endif // SHARE_VM_GC_SHARED_GCTRACE_HPP
--- EOF ---