1 /*
   2  * Copyright (c) 2013, 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_G1_G1GCPHASETIMES_HPP
  26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class LineBuffer;
  31 
  32 template <class T> class WorkerDataArray;
  33 
  34 class G1GCPhaseTimes : public CHeapObj<mtGC> {


  35   uint _active_gc_threads;
  36   uint _max_gc_threads;
  37   jlong _gc_start_counter;
  38   double _gc_pause_time_ms;
  39 
  40  public:
  41   enum GCParPhases {
  42     GCWorkerStart,
  43     ExtRootScan,
  44     ThreadRoots,
  45     StringTableRoots,
  46     UniverseRoots,
  47     JNIRoots,
  48     ObjectSynchronizerRoots,
  49     FlatProfilerRoots,
  50     ManagementRoots,
  51     SystemDictionaryRoots,
  52     CLDGRoots,
  53     JVMTIRoots,
  54     CMRefRoots,
  55     WaitForStrongCLD,
  56     WeakCLDRoots,
  57     SATBFiltering,
  58     UpdateRS,
  59     ScanHCC,
  60     ScanRS,
  61     CodeRoots,
  62     ObjCopy,
  63     Termination,
  64     Other,
  65     GCWorkerTotal,
  66     GCWorkerEnd,
  67     StringDedupQueueFixup,
  68     StringDedupTableFixup,
  69     RedirtyCards,
  70     GCParPhasesSentinel
  71   };
  72 
  73  private:
  74   // Markers for grouping the phases in the GCPhases enum above
  75   static const int GCMainParPhasesLast = GCWorkerEnd;
  76   static const int StringDedupPhasesFirst = StringDedupQueueFixup;
  77   static const int StringDedupPhasesLast = StringDedupTableFixup;
  78 
  79   WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
  80   WorkerDataArray<size_t>* _update_rs_processed_buffers;
  81   WorkerDataArray<size_t>* _termination_attempts;
  82   WorkerDataArray<size_t>* _redirtied_cards;
  83 
  84   double _cur_collection_par_time_ms;
  85   double _cur_collection_code_root_fixup_time_ms;
  86   double _cur_strong_code_root_purge_time_ms;
  87 
  88   double _cur_evac_fail_recalc_used;
  89   double _cur_evac_fail_restore_remsets;
  90   double _cur_evac_fail_remove_self_forwards;
  91 
  92   double _cur_string_dedup_fixup_time_ms;
  93 
  94   double _cur_clear_ct_time_ms;
  95   double _cur_expand_heap_time_ms;
  96   double _cur_ref_proc_time_ms;
  97   double _cur_ref_enq_time_ms;
  98 
  99   double _cur_collection_start_sec;
 100   double _root_region_scan_wait_time_ms;
 101 
 102   double _external_accounted_time_ms;
 103 
 104   double _recorded_young_cset_choice_time_ms;
 105   double _recorded_non_young_cset_choice_time_ms;
 106 
 107   double _recorded_redirty_logged_cards_time_ms;
 108 
 109   double _recorded_young_free_cset_time_ms;
 110   double _recorded_non_young_free_cset_time_ms;
 111 
 112   double _cur_fast_reclaim_humongous_time_ms;
 113   double _cur_fast_reclaim_humongous_register_time_ms;
 114   size_t _cur_fast_reclaim_humongous_total;
 115   size_t _cur_fast_reclaim_humongous_candidates;
 116   size_t _cur_fast_reclaim_humongous_reclaimed;
 117 
 118   double _cur_verify_before_time_ms;
 119   double _cur_verify_after_time_ms;
 120 



 121   void note_gc_end();
 122 
 123   template <class T>
 124   void details(T* phase, const char* indent);
 125   void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum);
 126   void debug_phase(WorkerDataArray<double>* phase);
 127   void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true);
 128 
 129  public:
 130   G1GCPhaseTimes(uint max_gc_threads);
 131   void note_gc_start(uint active_gc_threads);
 132   void print();
 133 
 134   // record the time a phase took in seconds
 135   void record_time_secs(GCParPhases phase, uint worker_i, double secs);
 136 
 137   // add a number of seconds to a phase
 138   void add_time_secs(GCParPhases phase, uint worker_i, double secs);
 139 
 140   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
 141 
 142   // return the average time for a phase in milliseconds
 143   double average_time_ms(GCParPhases phase);
 144 
 145   size_t sum_thread_work_items(GCParPhases phase);
 146 










 147  public:
 148 
 149   void record_clear_ct_time(double ms) {
 150     _cur_clear_ct_time_ms = ms;
 151   }
 152 
 153   void record_expand_heap_time(double ms) {
 154     _cur_expand_heap_time_ms = ms;
 155   }
 156 
 157   void record_par_time(double ms) {
 158     _cur_collection_par_time_ms = ms;
 159   }
 160 
 161   void record_code_root_fixup_time(double ms) {
 162     _cur_collection_code_root_fixup_time_ms = ms;
 163   }
 164 
 165   void record_strong_code_root_purge_time(double ms) {
 166     _cur_strong_code_root_purge_time_ms = ms;
 167   }
 168 
 169   void record_evac_fail_recalc_used_time(double ms) {
 170     _cur_evac_fail_recalc_used = ms;
 171   }
 172 
 173   void record_evac_fail_restore_remsets(double ms) {
 174     _cur_evac_fail_restore_remsets = ms;
 175   }
 176 
 177   void record_evac_fail_remove_self_forwards(double ms) {
 178     _cur_evac_fail_remove_self_forwards = ms;
 179   }
 180 
 181   void record_string_dedup_fixup_time(double ms) {
 182     _cur_string_dedup_fixup_time_ms = ms;
 183   }
 184 
 185   void record_ref_proc_time(double ms) {
 186     _cur_ref_proc_time_ms = ms;
 187   }
 188 
 189   void record_ref_enq_time(double ms) {
 190     _cur_ref_enq_time_ms = ms;
 191   }
 192 
 193   void record_root_region_scan_wait_time(double time_ms) {
 194     _root_region_scan_wait_time_ms = time_ms;
 195   }
 196 
 197   void record_young_free_cset_time_ms(double time_ms) {
 198     _recorded_young_free_cset_time_ms = time_ms;
 199   }
 200 
 201   void record_non_young_free_cset_time_ms(double time_ms) {
 202     _recorded_non_young_free_cset_time_ms = time_ms;
 203   }
 204 
 205   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
 206     _cur_fast_reclaim_humongous_register_time_ms = time_ms;
 207     _cur_fast_reclaim_humongous_total = total;
 208     _cur_fast_reclaim_humongous_candidates = candidates;
 209   }
 210 
 211   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
 212     _cur_fast_reclaim_humongous_time_ms = value;
 213     _cur_fast_reclaim_humongous_reclaimed = reclaimed;
 214   }
 215 
 216   void record_young_cset_choice_time_ms(double time_ms) {
 217     _recorded_young_cset_choice_time_ms = time_ms;
 218   }
 219 
 220   void record_non_young_cset_choice_time_ms(double time_ms) {
 221     _recorded_non_young_cset_choice_time_ms = time_ms;
 222   }
 223 
 224   void record_redirty_logged_cards_time_ms(double time_ms) {
 225     _recorded_redirty_logged_cards_time_ms = time_ms;
 226   }
 227 
 228   void record_cur_collection_start_sec(double time_ms) {
 229     _cur_collection_start_sec = time_ms;
 230   }
 231 
 232   void record_verify_before_time_ms(double time_ms) {
 233     _cur_verify_before_time_ms = time_ms;
 234   }
 235 
 236   void record_verify_after_time_ms(double time_ms) {
 237     _cur_verify_after_time_ms = time_ms;
 238   }
 239 
 240   void inc_external_accounted_time_ms(double time_ms) {
 241     _external_accounted_time_ms += time_ms;
 242   }


 243 
 244   double cur_collection_start_sec() {
 245     return _cur_collection_start_sec;
 246   }
 247 
 248   double cur_collection_par_time_ms() {
 249     return _cur_collection_par_time_ms;
 250   }
 251 
 252   double cur_clear_ct_time_ms() {
 253     return _cur_clear_ct_time_ms;
 254   }
 255 
 256   double cur_expand_heap_time_ms() {
 257     return _cur_expand_heap_time_ms;
 258   }
 259 
 260   double root_region_scan_wait_time_ms() {
 261     return _root_region_scan_wait_time_ms;
 262   }
 263 
 264   double young_cset_choice_time_ms() {
 265     return _recorded_young_cset_choice_time_ms;
 266   }
 267 
 268   double young_free_cset_time_ms() {
 269     return _recorded_young_free_cset_time_ms;
 270   }
 271 
 272   double non_young_cset_choice_time_ms() {
 273     return _recorded_non_young_cset_choice_time_ms;
 274   }
 275 
 276   double non_young_free_cset_time_ms() {
 277     return _recorded_non_young_free_cset_time_ms;
 278   }
 279 
 280   double fast_reclaim_humongous_time_ms() {
 281     return _cur_fast_reclaim_humongous_time_ms;
 282   }
 283 };
 284 
 285 class G1GCParPhaseTimesTracker : public StackObj {
 286   double _start_time;
 287   G1GCPhaseTimes::GCParPhases _phase;
 288   G1GCPhaseTimes* _phase_times;
 289   uint _worker_id;
 290 public:
 291   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 292   ~G1GCParPhaseTimesTracker();
 293 };
 294 
 295 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
--- EOF ---