rev 52675 : 8213890: Implementation of JEP 344: Abortable Mixed Collections for G1
Reviewed-by:
Contributed-by: erik.helin@oracle.com, stefan.johansson@oracle.com
rev 52676 : imported patch AMGC-impl
rev 52679 : imported patch AMGC-tsch-rev1-log
rev 52680 : [mq]: AMGC-tsch-rev2

   1 /*
   2  * Copyright (c) 2013, 2018, 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.
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  23  */
  24 
  25 #ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
  26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
  27 
  28 #include "gc/shared/referenceProcessorPhaseTimes.hpp"
  29 #include "gc/shared/weakProcessorPhaseTimes.hpp"
  30 #include "jfr/jfrEvents.hpp"
  31 #include "logging/logLevel.hpp"
  32 #include "memory/allocation.hpp"
  33 #include "utilities/macros.hpp"
  34 
  35 class LineBuffer;
  36 class G1ParScanThreadState;
  37 class STWGCTimer;
  38 
  39 template <class T> class WorkerDataArray;
  40 
  41 class G1GCPhaseTimes : public CHeapObj<mtGC> {
  42   uint _max_gc_threads;
  43   jlong _gc_start_counter;
  44   double _gc_pause_time_ms;
  45 
  46  public:
  47   enum GCParPhases {
  48     GCWorkerStart,
  49     ExtRootScan,
  50     ThreadRoots,
  51     StringTableRoots,
  52     UniverseRoots,
  53     JNIRoots,
  54     ObjectSynchronizerRoots,
  55     ManagementRoots,
  56     SystemDictionaryRoots,
  57     CLDGRoots,
  58     JVMTIRoots,
  59     CMRefRoots,
  60     WaitForStrongCLD,
  61     WeakCLDRoots,
  62     SATBFiltering,
  63     UpdateRS,
  64     ScanHCC,
  65     ScanRS,

  66     CodeRoots,
  67 #if INCLUDE_AOT
  68     AOTCodeRoots,
  69 #endif
  70     ObjCopy,

  71     Termination,
  72     Other,
  73     GCWorkerTotal,
  74     GCWorkerEnd,
  75     StringDedupQueueFixup,
  76     StringDedupTableFixup,
  77     RedirtyCards,
  78     YoungFreeCSet,
  79     NonYoungFreeCSet,
  80     GCParPhasesSentinel
  81   };
  82 
  83   enum GCScanRSWorkItems {
  84     ScanRSScannedCards,
  85     ScanRSClaimedCards,
  86     ScanRSSkippedCards
  87   };
  88 
  89   enum GCUpdateRSWorkItems {
  90     UpdateRSProcessedBuffers,
  91     UpdateRSScannedCards,
  92     UpdateRSSkippedCards
  93   };
  94 







  95  private:
  96   // Markers for grouping the phases in the GCPhases enum above
  97   static const int GCMainParPhasesLast = GCWorkerEnd;
  98   static const int StringDedupPhasesFirst = StringDedupQueueFixup;
  99   static const int StringDedupPhasesLast = StringDedupTableFixup;
 100 
 101   WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
 102 
 103   WorkerDataArray<size_t>* _update_rs_processed_buffers;
 104   WorkerDataArray<size_t>* _update_rs_scanned_cards;
 105   WorkerDataArray<size_t>* _update_rs_skipped_cards;
 106 
 107   WorkerDataArray<size_t>* _scan_rs_scanned_cards;
 108   WorkerDataArray<size_t>* _scan_rs_claimed_cards;
 109   WorkerDataArray<size_t>* _scan_rs_skipped_cards;
 110 





 111   WorkerDataArray<size_t>* _termination_attempts;
 112 
 113   WorkerDataArray<size_t>* _redirtied_cards;
 114 
 115   double _cur_collection_par_time_ms;

 116   double _cur_collection_code_root_fixup_time_ms;
 117   double _cur_strong_code_root_purge_time_ms;
 118 
 119   double _cur_evac_fail_recalc_used;
 120   double _cur_evac_fail_remove_self_forwards;
 121 
 122   double _cur_string_dedup_fixup_time_ms;
 123 
 124   double _cur_prepare_tlab_time_ms;
 125   double _cur_resize_tlab_time_ms;
 126 
 127   double _cur_derived_pointer_table_update_time_ms;
 128 
 129   double _cur_clear_ct_time_ms;
 130   double _cur_expand_heap_time_ms;
 131   double _cur_ref_proc_time_ms;
 132 
 133   double _cur_collection_start_sec;
 134   double _root_region_scan_wait_time_ms;
 135 
 136   double _external_accounted_time_ms;
 137 
 138   double _recorded_clear_claimed_marks_time_ms;
 139 
 140   double _recorded_young_cset_choice_time_ms;
 141   double _recorded_non_young_cset_choice_time_ms;
 142 
 143   double _recorded_redirty_logged_cards_time_ms;
 144 
 145   double _recorded_preserve_cm_referents_time_ms;
 146 
 147   double _recorded_merge_pss_time_ms;
 148 
 149   double _recorded_start_new_cset_time_ms;
 150 
 151   double _recorded_total_free_cset_time_ms;
 152 
 153   double _recorded_serial_free_cset_time_ms;
 154 
 155   double _cur_fast_reclaim_humongous_time_ms;
 156   double _cur_fast_reclaim_humongous_register_time_ms;
 157   size_t _cur_fast_reclaim_humongous_total;
 158   size_t _cur_fast_reclaim_humongous_candidates;
 159   size_t _cur_fast_reclaim_humongous_reclaimed;
 160 
 161   double _cur_verify_before_time_ms;
 162   double _cur_verify_after_time_ms;
 163 
 164   ReferenceProcessorPhaseTimes _ref_phase_times;
 165   WeakProcessorPhaseTimes _weak_phase_times;
 166 
 167   double worker_time(GCParPhases phase, uint worker);
 168   void note_gc_end();
 169   void reset();
 170 
 171   template <class T>
 172   void details(T* phase, const char* indent) const;
 173 
 174   void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
 175   void debug_phase(WorkerDataArray<double>* phase) const;
 176   void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
 177 
 178   void info_time(const char* name, double value) const;
 179   void debug_time(const char* name, double value) const;
 180   // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
 181   void debug_time_for_reference(const char* name, double value) const;
 182   void trace_time(const char* name, double value) const;
 183   void trace_count(const char* name, size_t value) const;
 184 
 185   double print_pre_evacuate_collection_set() const;
 186   double print_evacuate_collection_set() const;

 187   double print_post_evacuate_collection_set() const;
 188   void print_other(double accounted_ms) const;
 189 
 190  public:
 191   G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads);
 192   void note_gc_start();
 193   void print();
 194   static const char* phase_name(GCParPhases phase);
 195 
 196   // record the time a phase took in seconds
 197   void record_time_secs(GCParPhases phase, uint worker_i, double secs);
 198 
 199   // add a number of seconds to a phase
 200   void add_time_secs(GCParPhases phase, uint worker_i, double secs);
 201 
 202   void record_or_add_objcopy_time_secs(uint worker_i, double secs);
 203 
 204   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
 205 
 206   // return the average time for a phase in milliseconds
 207   double average_time_ms(GCParPhases phase);
 208 
 209   size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
 210 
 211  public:
 212 
 213   void record_prepare_tlab_time_ms(double ms) {
 214     _cur_prepare_tlab_time_ms = ms;
 215   }
 216 
 217   void record_resize_tlab_time_ms(double ms) {
 218     _cur_resize_tlab_time_ms = ms;
 219   }
 220 
 221   void record_derived_pointer_table_update_time(double ms) {
 222     _cur_derived_pointer_table_update_time_ms = ms;
 223   }
 224 
 225   void record_clear_ct_time(double ms) {
 226     _cur_clear_ct_time_ms = ms;
 227   }
 228 
 229   void record_expand_heap_time(double ms) {
 230     _cur_expand_heap_time_ms = ms;
 231   }
 232 
 233   void record_par_time(double ms) {
 234     _cur_collection_par_time_ms = ms;




 235   }
 236 
 237   void record_code_root_fixup_time(double ms) {
 238     _cur_collection_code_root_fixup_time_ms = ms;
 239   }
 240 
 241   void record_strong_code_root_purge_time(double ms) {
 242     _cur_strong_code_root_purge_time_ms = ms;
 243   }
 244 
 245   void record_evac_fail_recalc_used_time(double ms) {
 246     _cur_evac_fail_recalc_used = ms;
 247   }
 248 
 249   void record_evac_fail_remove_self_forwards(double ms) {
 250     _cur_evac_fail_remove_self_forwards = ms;
 251   }
 252 
 253   void record_string_dedup_fixup_time(double ms) {
 254     _cur_string_dedup_fixup_time_ms = ms;
 255   }
 256 
 257   void record_ref_proc_time(double ms) {
 258     _cur_ref_proc_time_ms = ms;
 259   }
 260 
 261   void record_root_region_scan_wait_time(double time_ms) {
 262     _root_region_scan_wait_time_ms = time_ms;
 263   }
 264 
 265   void record_total_free_cset_time_ms(double time_ms) {
 266     _recorded_total_free_cset_time_ms = time_ms;
 267   }
 268 
 269   void record_serial_free_cset_time_ms(double time_ms) {
 270     _recorded_serial_free_cset_time_ms = time_ms;
 271   }
 272 
 273   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
 274     _cur_fast_reclaim_humongous_register_time_ms = time_ms;
 275     _cur_fast_reclaim_humongous_total = total;
 276     _cur_fast_reclaim_humongous_candidates = candidates;
 277   }
 278 
 279   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
 280     _cur_fast_reclaim_humongous_time_ms = value;
 281     _cur_fast_reclaim_humongous_reclaimed = reclaimed;
 282   }
 283 
 284   void record_young_cset_choice_time_ms(double time_ms) {
 285     _recorded_young_cset_choice_time_ms = time_ms;
 286   }
 287 
 288   void record_non_young_cset_choice_time_ms(double time_ms) {
 289     _recorded_non_young_cset_choice_time_ms = time_ms;
 290   }
 291 
 292   void record_redirty_logged_cards_time_ms(double time_ms) {
 293     _recorded_redirty_logged_cards_time_ms = time_ms;
 294   }
 295 
 296   void record_preserve_cm_referents_time_ms(double time_ms) {
 297     _recorded_preserve_cm_referents_time_ms = time_ms;
 298   }
 299 
 300   void record_merge_pss_time_ms(double time_ms) {
 301     _recorded_merge_pss_time_ms = time_ms;
 302   }
 303 
 304   void record_start_new_cset_time_ms(double time_ms) {
 305     _recorded_start_new_cset_time_ms = time_ms;
 306   }
 307 
 308   void record_cur_collection_start_sec(double time_ms) {
 309     _cur_collection_start_sec = time_ms;
 310   }
 311 
 312   void record_verify_before_time_ms(double time_ms) {
 313     _cur_verify_before_time_ms = time_ms;
 314   }
 315 
 316   void record_verify_after_time_ms(double time_ms) {
 317     _cur_verify_after_time_ms = time_ms;
 318   }
 319 
 320   void inc_external_accounted_time_ms(double time_ms) {
 321     _external_accounted_time_ms += time_ms;
 322   }
 323 
 324   void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
 325     _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
 326   }
 327 
 328   double cur_collection_start_sec() {
 329     return _cur_collection_start_sec;
 330   }
 331 
 332   double cur_collection_par_time_ms() {
 333     return _cur_collection_par_time_ms;
 334   }
 335 
 336   double cur_clear_ct_time_ms() {
 337     return _cur_clear_ct_time_ms;
 338   }
 339 
 340   double cur_expand_heap_time_ms() {
 341     return _cur_expand_heap_time_ms;
 342   }
 343 
 344   double root_region_scan_wait_time_ms() {
 345     return _root_region_scan_wait_time_ms;
 346   }
 347 
 348   double young_cset_choice_time_ms() {
 349     return _recorded_young_cset_choice_time_ms;
 350   }
 351 
 352   double total_free_cset_time_ms() {
 353     return _recorded_total_free_cset_time_ms;
 354   }
 355 
 356   double non_young_cset_choice_time_ms() {
 357     return _recorded_non_young_cset_choice_time_ms;
 358   }
 359 
 360   double fast_reclaim_humongous_time_ms() {
 361     return _cur_fast_reclaim_humongous_time_ms;
 362   }
 363 
 364   ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
 365 
 366   WeakProcessorPhaseTimes* weak_phase_times() { return &_weak_phase_times; }
 367 };
 368 
 369 class G1EvacPhaseWithTrimTimeTracker : public StackObj {
 370   G1ParScanThreadState* _pss;
 371   Ticks _start;
 372 
 373   Tickspan& _total_time;
 374   Tickspan& _trim_time;
 375 
 376   bool _stopped;
 377 public:
 378   G1EvacPhaseWithTrimTimeTracker(G1ParScanThreadState* pss, Tickspan& total_time, Tickspan& trim_time);
 379   ~G1EvacPhaseWithTrimTimeTracker();
 380 
 381   void stop();
 382 };
 383 
 384 class G1GCParPhaseTimesTracker : public CHeapObj<mtGC> {
 385 protected:
 386   Ticks _start_time;
 387   G1GCPhaseTimes::GCParPhases _phase;
 388   G1GCPhaseTimes* _phase_times;
 389   uint _worker_id;
 390   EventGCPhaseParallel _event;
 391 public:
 392   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 393   virtual ~G1GCParPhaseTimesTracker();
 394 };
 395 
 396 class G1EvacPhaseTimesTracker : public G1GCParPhaseTimesTracker {
 397   Tickspan _total_time;
 398   Tickspan _trim_time;
 399 
 400   G1EvacPhaseWithTrimTimeTracker _trim_tracker;
 401 public:
 402   G1EvacPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1ParScanThreadState* pss, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 403   virtual ~G1EvacPhaseTimesTracker();
 404 };
 405 
 406 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
--- EOF ---