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   friend class G1GCParPhasePrinter;
  36 
  37   uint _active_gc_threads;
  38   uint _max_gc_threads;
  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 _recorded_young_cset_choice_time_ms;
 103   double _recorded_non_young_cset_choice_time_ms;
 104 
 105   double _recorded_redirty_logged_cards_time_ms;
 106 
 107   double _recorded_young_free_cset_time_ms;
 108   double _recorded_non_young_free_cset_time_ms;
 109 
 110   double _cur_fast_reclaim_humongous_time_ms;
 111   double _cur_fast_reclaim_humongous_register_time_ms;
 112   size_t _cur_fast_reclaim_humongous_total;
 113   size_t _cur_fast_reclaim_humongous_candidates;
 114   size_t _cur_fast_reclaim_humongous_reclaimed;
 115 
 116   double _cur_verify_before_time_ms;
 117   double _cur_verify_after_time_ms;
 118 
 119   // Helper methods for detailed logging
 120   void print_stats(const char*, const char* str, double value);


 121 
 122   void note_gc_end();
 123 
 124  public:
 125   G1GCPhaseTimes(uint max_gc_threads);
 126   void note_gc_start(uint active_gc_threads);
 127   void print(double pause_time_sec);
 128 
 129   // record the time a phase took in seconds
 130   void record_time_secs(GCParPhases phase, uint worker_i, double secs);
 131 
 132   // add a number of seconds to a phase
 133   void add_time_secs(GCParPhases phase, uint worker_i, double secs);
 134 
 135   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
 136 
 137   // return the average time for a phase in milliseconds
 138   double average_time_ms(GCParPhases phase);
 139 
 140   size_t sum_thread_work_items(GCParPhases phase);
 141 
 142  private:
 143   double get_time_ms(GCParPhases phase, uint worker_i);
 144   double sum_time_ms(GCParPhases phase);
 145   double min_time_ms(GCParPhases phase);
 146   double max_time_ms(GCParPhases phase);
 147   size_t get_thread_work_item(GCParPhases phase, uint worker_i);
 148   double average_thread_work_items(GCParPhases phase);
 149   size_t min_thread_work_items(GCParPhases phase);
 150   size_t max_thread_work_items(GCParPhases phase);
 151 
 152  public:
 153 
 154   void record_clear_ct_time(double ms) {
 155     _cur_clear_ct_time_ms = ms;
 156   }
 157 
 158   void record_expand_heap_time(double ms) {
 159     _cur_expand_heap_time_ms = ms;
 160   }
 161 
 162   void record_par_time(double ms) {
 163     _cur_collection_par_time_ms = ms;
 164   }
 165 
 166   void record_code_root_fixup_time(double ms) {
 167     _cur_collection_code_root_fixup_time_ms = ms;
 168   }
 169 
 170   void record_strong_code_root_purge_time(double ms) {
 171     _cur_strong_code_root_purge_time_ms = ms;
 172   }
 173 
 174   void record_evac_fail_recalc_used_time(double ms) {
 175     _cur_evac_fail_recalc_used = ms;
 176   }
 177 
 178   void record_evac_fail_restore_remsets(double ms) {
 179     _cur_evac_fail_restore_remsets = ms;
 180   }
 181 
 182   void record_evac_fail_remove_self_forwards(double ms) {
 183     _cur_evac_fail_remove_self_forwards = ms;
 184   }
 185 
 186   void record_string_dedup_fixup_time(double ms) {
 187     _cur_string_dedup_fixup_time_ms = ms;
 188   }
 189 
 190   void record_ref_proc_time(double ms) {
 191     _cur_ref_proc_time_ms = ms;
 192   }
 193 
 194   void record_ref_enq_time(double ms) {
 195     _cur_ref_enq_time_ms = ms;
 196   }
 197 
 198   void record_root_region_scan_wait_time(double time_ms) {
 199     _root_region_scan_wait_time_ms = time_ms;
 200   }
 201 
 202   void record_young_free_cset_time_ms(double time_ms) {
 203     _recorded_young_free_cset_time_ms = time_ms;
 204   }
 205 
 206   void record_non_young_free_cset_time_ms(double time_ms) {
 207     _recorded_non_young_free_cset_time_ms = time_ms;
 208   }
 209 
 210   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
 211     _cur_fast_reclaim_humongous_register_time_ms = time_ms;
 212     _cur_fast_reclaim_humongous_total = total;
 213     _cur_fast_reclaim_humongous_candidates = candidates;
 214   }
 215 
 216   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
 217     _cur_fast_reclaim_humongous_time_ms = value;
 218     _cur_fast_reclaim_humongous_reclaimed = reclaimed;
 219   }
 220 
 221   void record_young_cset_choice_time_ms(double time_ms) {
 222     _recorded_young_cset_choice_time_ms = time_ms;
 223   }
 224 
 225   void record_non_young_cset_choice_time_ms(double time_ms) {
 226     _recorded_non_young_cset_choice_time_ms = time_ms;
 227   }
 228 
 229   void record_redirty_logged_cards_time_ms(double time_ms) {
 230     _recorded_redirty_logged_cards_time_ms = time_ms;
 231   }
 232 
 233   void record_cur_collection_start_sec(double time_ms) {
 234     _cur_collection_start_sec = time_ms;
 235   }
 236 
 237   void record_verify_before_time_ms(double time_ms) {
 238     _cur_verify_before_time_ms = time_ms;
 239   }
 240 
 241   void record_verify_after_time_ms(double time_ms) {
 242     _cur_verify_after_time_ms = time_ms;
 243   }
 244 
 245   double accounted_time_ms();
 246 
 247   double cur_collection_start_sec() {
 248     return _cur_collection_start_sec;
 249   }
 250 
 251   double cur_collection_par_time_ms() {
 252     return _cur_collection_par_time_ms;
 253   }
 254 
 255   double cur_clear_ct_time_ms() {
 256     return _cur_clear_ct_time_ms;
 257   }
 258 
 259   double cur_expand_heap_time_ms() {
 260     return _cur_expand_heap_time_ms;
 261   }
 262 
 263   double root_region_scan_wait_time_ms() {
 264     return _root_region_scan_wait_time_ms;
 265   }
 266 
 267   double young_cset_choice_time_ms() {
 268     return _recorded_young_cset_choice_time_ms;
 269   }
 270 
 271   double young_free_cset_time_ms() {
 272     return _recorded_young_free_cset_time_ms;
 273   }
 274 
 275   double non_young_cset_choice_time_ms() {
 276     return _recorded_non_young_cset_choice_time_ms;
 277   }
 278 
 279   double non_young_free_cset_time_ms() {
 280     return _recorded_non_young_free_cset_time_ms;
 281   }
 282 
 283   double fast_reclaim_humongous_time_ms() {
 284     return _cur_fast_reclaim_humongous_time_ms;
 285   }
 286 };
 287 
 288 class G1GCParPhaseTimesTracker : public StackObj {
 289   double _start_time;
 290   G1GCPhaseTimes::GCParPhases _phase;
 291   G1GCPhaseTimes* _phase_times;
 292   uint _worker_id;
 293 public:
 294   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 295   ~G1GCParPhaseTimesTracker();
 296 };
 297 
 298 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
--- EOF ---