1 /*
   2  * Copyright (c) 2013, 2017, 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_G1_G1GCPHASETIMES_HPP
  26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
  27 
  28 #include "gc/shared/referenceProcessorPhaseTimes.hpp"
  29 #include "logging/logLevel.hpp"
  30 #include "memory/allocation.hpp"
  31 #include "utilities/macros.hpp"
  32 
  33 class LineBuffer;
  34 class STWGCTimer;
  35 
  36 template <class T> class WorkerDataArray;
  37 
  38 class G1GCPhaseTimes : public CHeapObj<mtGC> {
  39   uint _max_gc_threads;
  40   jlong _gc_start_counter;
  41   double _gc_pause_time_ms;
  42 
  43  public:
  44   enum GCParPhases {
  45     GCWorkerStart,
  46     ExtRootScan,
  47     ThreadRoots,
  48     StringTableRoots,
  49     UniverseRoots,
  50     JNIRoots,
  51     ObjectSynchronizerRoots,
  52     FlatProfilerRoots,
  53     ManagementRoots,
  54     SystemDictionaryRoots,
  55     CLDGRoots,
  56     JVMTIRoots,
  57     CMRefRoots,
  58     WaitForStrongCLD,
  59     WeakCLDRoots,
  60     SATBFiltering,
  61     UpdateRS,
  62     ScanHCC,
  63     ScanRS,
  64     CodeRoots,
  65 #if INCLUDE_AOT
  66     AOTCodeRoots,
  67 #endif
  68     ObjCopy,
  69     Termination,
  70     Other,
  71     GCWorkerTotal,
  72     GCWorkerEnd,
  73     StringDedupQueueFixup,
  74     StringDedupTableFixup,
  75     RedirtyCards,
  76     PreserveCMReferents,
  77     YoungFreeCSet,
  78     NonYoungFreeCSet,
  79     GCParPhasesSentinel
  80   };
  81 
  82   enum GCScanRSWorkItems {
  83     ScannedCards,
  84     ClaimedCards,
  85     SkippedCards
  86   };
  87 
  88  private:
  89   // Markers for grouping the phases in the GCPhases enum above
  90   static const int GCMainParPhasesLast = GCWorkerEnd;
  91   static const int StringDedupPhasesFirst = StringDedupQueueFixup;
  92   static const int StringDedupPhasesLast = StringDedupTableFixup;
  93 
  94   WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
  95 
  96   WorkerDataArray<size_t>* _update_rs_processed_buffers;
  97 
  98   WorkerDataArray<size_t>* _scan_rs_scanned_cards;
  99   WorkerDataArray<size_t>* _scan_rs_claimed_cards;
 100   WorkerDataArray<size_t>* _scan_rs_skipped_cards;
 101 
 102   WorkerDataArray<size_t>* _termination_attempts;
 103 
 104   WorkerDataArray<size_t>* _redirtied_cards;
 105 
 106   double _cur_collection_par_time_ms;
 107   double _cur_collection_code_root_fixup_time_ms;
 108   double _cur_strong_code_root_purge_time_ms;
 109 
 110   double _cur_evac_fail_recalc_used;
 111   double _cur_evac_fail_remove_self_forwards;
 112 
 113   double _cur_string_dedup_fixup_time_ms;
 114 
 115   double _cur_prepare_tlab_time_ms;
 116   double _cur_resize_tlab_time_ms;
 117 
 118   double _cur_derived_pointer_table_update_time_ms;
 119 
 120   double _cur_clear_ct_time_ms;
 121   double _cur_expand_heap_time_ms;
 122   double _cur_ref_proc_time_ms;
 123   double _cur_ref_enq_time_ms;
 124 
 125   double _cur_collection_start_sec;
 126   double _root_region_scan_wait_time_ms;
 127 
 128   double _external_accounted_time_ms;
 129 
 130   double _recorded_clear_claimed_marks_time_ms;
 131 
 132   double _recorded_young_cset_choice_time_ms;
 133   double _recorded_non_young_cset_choice_time_ms;
 134 
 135   double _recorded_redirty_logged_cards_time_ms;
 136 
 137   double _recorded_preserve_cm_referents_time_ms;
 138 
 139   double _recorded_merge_pss_time_ms;
 140 
 141   double _recorded_start_new_cset_time_ms;
 142 
 143   double _recorded_total_free_cset_time_ms;
 144 
 145   double _recorded_serial_free_cset_time_ms;
 146 
 147   double _cur_fast_reclaim_humongous_time_ms;
 148   double _cur_fast_reclaim_humongous_register_time_ms;
 149   size_t _cur_fast_reclaim_humongous_total;
 150   size_t _cur_fast_reclaim_humongous_candidates;
 151   size_t _cur_fast_reclaim_humongous_reclaimed;
 152 
 153   double _cur_verify_before_time_ms;
 154   double _cur_verify_after_time_ms;
 155 
 156   ReferenceProcessorPhaseTimes _ref_phase_times;
 157 
 158   double worker_time(GCParPhases phase, uint worker);
 159   void note_gc_end();
 160   void reset();
 161 
 162   template <class T>
 163   void details(T* phase, const char* indent) const;
 164 
 165   void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
 166   void debug_phase(WorkerDataArray<double>* phase) const;
 167   void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
 168 
 169   void info_time(const char* name, double value) const;
 170   void debug_time(const char* name, double value) const;
 171   // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
 172   void debug_time_for_reference(const char* name, double value) const;
 173   void trace_time(const char* name, double value) const;
 174   void trace_count(const char* name, size_t value) const;
 175 
 176   double print_pre_evacuate_collection_set() const;
 177   double print_evacuate_collection_set() const;
 178   double print_post_evacuate_collection_set() const;
 179   void print_other(double accounted_ms) const;
 180 
 181  public:
 182   G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads);
 183   void note_gc_start();
 184   void print();
 185 
 186   // record the time a phase took in seconds
 187   void record_time_secs(GCParPhases phase, uint worker_i, double secs);
 188 
 189   // add a number of seconds to a phase
 190   void add_time_secs(GCParPhases phase, uint worker_i, double secs);
 191 
 192   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
 193 
 194   // return the average time for a phase in milliseconds
 195   double average_time_ms(GCParPhases phase);
 196 
 197   size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
 198 
 199  public:
 200 
 201   void record_prepare_tlab_time_ms(double ms) {
 202     _cur_prepare_tlab_time_ms = ms;
 203   }
 204 
 205   void record_resize_tlab_time_ms(double ms) {
 206     _cur_resize_tlab_time_ms = ms;
 207   }
 208 
 209   void record_derived_pointer_table_update_time(double ms) {
 210     _cur_derived_pointer_table_update_time_ms = ms;
 211   }
 212 
 213   void record_clear_ct_time(double ms) {
 214     _cur_clear_ct_time_ms = ms;
 215   }
 216 
 217   void record_expand_heap_time(double ms) {
 218     _cur_expand_heap_time_ms = ms;
 219   }
 220 
 221   void record_par_time(double ms) {
 222     _cur_collection_par_time_ms = ms;
 223   }
 224 
 225   void record_code_root_fixup_time(double ms) {
 226     _cur_collection_code_root_fixup_time_ms = ms;
 227   }
 228 
 229   void record_strong_code_root_purge_time(double ms) {
 230     _cur_strong_code_root_purge_time_ms = ms;
 231   }
 232 
 233   void record_evac_fail_recalc_used_time(double ms) {
 234     _cur_evac_fail_recalc_used = ms;
 235   }
 236 
 237   void record_evac_fail_remove_self_forwards(double ms) {
 238     _cur_evac_fail_remove_self_forwards = ms;
 239   }
 240 
 241   void record_string_dedup_fixup_time(double ms) {
 242     _cur_string_dedup_fixup_time_ms = ms;
 243   }
 244 
 245   void record_ref_proc_time(double ms) {
 246     _cur_ref_proc_time_ms = ms;
 247   }
 248 
 249   void record_ref_enq_time(double ms) {
 250     _cur_ref_enq_time_ms = ms;
 251   }
 252 
 253   void record_root_region_scan_wait_time(double time_ms) {
 254     _root_region_scan_wait_time_ms = time_ms;
 255   }
 256 
 257   void record_total_free_cset_time_ms(double time_ms) {
 258     _recorded_total_free_cset_time_ms = time_ms;
 259   }
 260 
 261   void record_serial_free_cset_time_ms(double time_ms) {
 262     _recorded_serial_free_cset_time_ms = time_ms;
 263   }
 264 
 265   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
 266     _cur_fast_reclaim_humongous_register_time_ms = time_ms;
 267     _cur_fast_reclaim_humongous_total = total;
 268     _cur_fast_reclaim_humongous_candidates = candidates;
 269   }
 270 
 271   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
 272     _cur_fast_reclaim_humongous_time_ms = value;
 273     _cur_fast_reclaim_humongous_reclaimed = reclaimed;
 274   }
 275 
 276   void record_young_cset_choice_time_ms(double time_ms) {
 277     _recorded_young_cset_choice_time_ms = time_ms;
 278   }
 279 
 280   void record_non_young_cset_choice_time_ms(double time_ms) {
 281     _recorded_non_young_cset_choice_time_ms = time_ms;
 282   }
 283 
 284   void record_redirty_logged_cards_time_ms(double time_ms) {
 285     _recorded_redirty_logged_cards_time_ms = time_ms;
 286   }
 287 
 288   void record_preserve_cm_referents_time_ms(double time_ms) {
 289     _recorded_preserve_cm_referents_time_ms = time_ms;
 290   }
 291 
 292   void record_merge_pss_time_ms(double time_ms) {
 293     _recorded_merge_pss_time_ms = time_ms;
 294   }
 295 
 296   void record_start_new_cset_time_ms(double time_ms) {
 297     _recorded_start_new_cset_time_ms = time_ms;
 298   }
 299 
 300   void record_cur_collection_start_sec(double time_ms) {
 301     _cur_collection_start_sec = time_ms;
 302   }
 303 
 304   void record_verify_before_time_ms(double time_ms) {
 305     _cur_verify_before_time_ms = time_ms;
 306   }
 307 
 308   void record_verify_after_time_ms(double time_ms) {
 309     _cur_verify_after_time_ms = time_ms;
 310   }
 311 
 312   void inc_external_accounted_time_ms(double time_ms) {
 313     _external_accounted_time_ms += time_ms;
 314   }
 315 
 316   void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
 317     _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
 318   }
 319 
 320   double cur_collection_start_sec() {
 321     return _cur_collection_start_sec;
 322   }
 323 
 324   double cur_collection_par_time_ms() {
 325     return _cur_collection_par_time_ms;
 326   }
 327 
 328   double cur_clear_ct_time_ms() {
 329     return _cur_clear_ct_time_ms;
 330   }
 331 
 332   double cur_expand_heap_time_ms() {
 333     return _cur_expand_heap_time_ms;
 334   }
 335 
 336   double root_region_scan_wait_time_ms() {
 337     return _root_region_scan_wait_time_ms;
 338   }
 339 
 340   double young_cset_choice_time_ms() {
 341     return _recorded_young_cset_choice_time_ms;
 342   }
 343 
 344   double total_free_cset_time_ms() {
 345     return _recorded_total_free_cset_time_ms;
 346   }
 347 
 348   double non_young_cset_choice_time_ms() {
 349     return _recorded_non_young_cset_choice_time_ms;
 350   }
 351 
 352   double fast_reclaim_humongous_time_ms() {
 353     return _cur_fast_reclaim_humongous_time_ms;
 354   }
 355 
 356   ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
 357 };
 358 
 359 class G1GCParPhaseTimesTracker : public StackObj {
 360   double _start_time;
 361   G1GCPhaseTimes::GCParPhases _phase;
 362   G1GCPhaseTimes* _phase_times;
 363   uint _worker_id;
 364 public:
 365   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 366   ~G1GCParPhaseTimesTracker();
 367 };
 368 
 369 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP