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(int level, const char* str, double value);
 121   void print_stats(int level, const char* str, size_t value);
 122   void print_stats(int level, const char* str, double value, uint workers);
 123 
 124   void note_gc_end();
 125 
 126  public:
 127   G1GCPhaseTimes(uint max_gc_threads);
 128   void note_gc_start(uint active_gc_threads);
 129   void print(double pause_time_sec);
 130 
 131   // record the time a phase took in seconds
 132   void record_time_secs(GCParPhases phase, uint worker_i, double secs);
 133 
 134   // add a number of seconds to a phase
 135   void add_time_secs(GCParPhases phase, uint worker_i, double secs);
 136 
 137   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
 138 
 139   // return the average time for a phase in milliseconds
 140   double average_time_ms(GCParPhases phase);
 141 
 142   size_t sum_thread_work_items(GCParPhases phase);
 143 
 144  private:
 145   double get_time_ms(GCParPhases phase, uint worker_i);
 146   double sum_time_ms(GCParPhases phase);
 147   double min_time_ms(GCParPhases phase);
 148   double max_time_ms(GCParPhases phase);
 149   size_t get_thread_work_item(GCParPhases phase, uint worker_i);
 150   double average_thread_work_items(GCParPhases phase);
 151   size_t min_thread_work_items(GCParPhases phase);
 152   size_t max_thread_work_items(GCParPhases phase);
 153 
 154  public:
 155 
 156   void record_clear_ct_time(double ms) {
 157     _cur_clear_ct_time_ms = ms;
 158   }
 159 
 160   void record_expand_heap_time(double ms) {
 161     _cur_expand_heap_time_ms = ms;
 162   }
 163 
 164   void record_par_time(double ms) {
 165     _cur_collection_par_time_ms = ms;
 166   }
 167 
 168   void record_code_root_fixup_time(double ms) {
 169     _cur_collection_code_root_fixup_time_ms = ms;
 170   }
 171 
 172   void record_strong_code_root_purge_time(double ms) {
 173     _cur_strong_code_root_purge_time_ms = ms;
 174   }
 175 
 176   void record_evac_fail_recalc_used_time(double ms) {
 177     _cur_evac_fail_recalc_used = ms;
 178   }
 179 
 180   void record_evac_fail_restore_remsets(double ms) {
 181     _cur_evac_fail_restore_remsets = ms;
 182   }
 183 
 184   void record_evac_fail_remove_self_forwards(double ms) {
 185     _cur_evac_fail_remove_self_forwards = ms;
 186   }
 187 
 188   void record_string_dedup_fixup_time(double ms) {
 189     _cur_string_dedup_fixup_time_ms = ms;
 190   }
 191 
 192   void record_ref_proc_time(double ms) {
 193     _cur_ref_proc_time_ms = ms;
 194   }
 195 
 196   void record_ref_enq_time(double ms) {
 197     _cur_ref_enq_time_ms = ms;
 198   }
 199 
 200   void record_root_region_scan_wait_time(double time_ms) {
 201     _root_region_scan_wait_time_ms = time_ms;
 202   }
 203 
 204   void record_young_free_cset_time_ms(double time_ms) {
 205     _recorded_young_free_cset_time_ms = time_ms;
 206   }
 207 
 208   void record_non_young_free_cset_time_ms(double time_ms) {
 209     _recorded_non_young_free_cset_time_ms = time_ms;
 210   }
 211 
 212   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
 213     _cur_fast_reclaim_humongous_register_time_ms = time_ms;
 214     _cur_fast_reclaim_humongous_total = total;
 215     _cur_fast_reclaim_humongous_candidates = candidates;
 216   }
 217 
 218   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
 219     _cur_fast_reclaim_humongous_time_ms = value;
 220     _cur_fast_reclaim_humongous_reclaimed = reclaimed;
 221   }
 222 
 223   void record_young_cset_choice_time_ms(double time_ms) {
 224     _recorded_young_cset_choice_time_ms = time_ms;
 225   }
 226 
 227   void record_non_young_cset_choice_time_ms(double time_ms) {
 228     _recorded_non_young_cset_choice_time_ms = time_ms;
 229   }
 230 
 231   void record_redirty_logged_cards_time_ms(double time_ms) {
 232     _recorded_redirty_logged_cards_time_ms = time_ms;
 233   }
 234 
 235   void record_cur_collection_start_sec(double time_ms) {
 236     _cur_collection_start_sec = time_ms;
 237   }
 238 
 239   void record_verify_before_time_ms(double time_ms) {
 240     _cur_verify_before_time_ms = time_ms;
 241   }
 242 
 243   void record_verify_after_time_ms(double time_ms) {
 244     _cur_verify_after_time_ms = time_ms;
 245   }
 246 
 247   double accounted_time_ms();
 248 
 249   double cur_collection_start_sec() {
 250     return _cur_collection_start_sec;
 251   }
 252 
 253   double cur_collection_par_time_ms() {
 254     return _cur_collection_par_time_ms;
 255   }
 256 
 257   double cur_clear_ct_time_ms() {
 258     return _cur_clear_ct_time_ms;
 259   }
 260 
 261   double cur_expand_heap_time_ms() {
 262     return _cur_expand_heap_time_ms;
 263   }
 264 
 265   double root_region_scan_wait_time_ms() {
 266     return _root_region_scan_wait_time_ms;
 267   }
 268 
 269   double young_cset_choice_time_ms() {
 270     return _recorded_young_cset_choice_time_ms;
 271   }
 272 
 273   double young_free_cset_time_ms() {
 274     return _recorded_young_free_cset_time_ms;
 275   }
 276 
 277   double non_young_cset_choice_time_ms() {
 278     return _recorded_non_young_cset_choice_time_ms;
 279   }
 280 
 281   double non_young_free_cset_time_ms() {
 282     return _recorded_non_young_free_cset_time_ms;
 283   }
 284 
 285   double fast_reclaim_humongous_time_ms() {
 286     return _cur_fast_reclaim_humongous_time_ms;
 287   }
 288 };
 289 
 290 class G1GCParPhaseTimesTracker : public StackObj {
 291   double _start_time;
 292   G1GCPhaseTimes::GCParPhases _phase;
 293   G1GCPhaseTimes* _phase_times;
 294   uint _worker_id;
 295 public:
 296   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
 297   ~G1GCParPhaseTimesTracker();
 298 };
 299 
 300 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
--- EOF ---