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 /*

  * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

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 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP

 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP

 #include "memory/allocation.hpp"

 class LineBuffer;

 template <class T> class WorkerDataArray;

 class G1GCPhaseTimes : public CHeapObj<mtGC> {

   friend class G1GCParPhasePrinter;

   uint _active_gc_threads;

   uint _max_gc_threads;

  public:

   enum GCParPhases {

     GCWorkerStart,

     ExtRootScan,

     ThreadRoots,

     StringTableRoots,

     UniverseRoots,

     JNIRoots,

     ObjectSynchronizerRoots,

     FlatProfilerRoots,

     ManagementRoots,

     SystemDictionaryRoots,

     CLDGRoots,

     JVMTIRoots,

     CodeCacheRoots,

     CMRefRoots,

     WaitForStrongCLD,

     WeakCLDRoots,

     SATBFiltering,

     UpdateRS,

     ScanRS,

     CodeRoots,

     ObjCopy,

     Termination,

     Other,

     GCWorkerTotal,

     GCWorkerEnd,

     StringDedupQueueFixup,

     StringDedupTableFixup,

     RedirtyCards,

     GCParPhasesSentinel

   };

  private:

   // Markers for grouping the phases in the GCPhases enum above

   static const int GCMainParPhasesLast = GCWorkerEnd;

   static const int StringDedupPhasesFirst = StringDedupQueueFixup;

   static const int StringDedupPhasesLast = StringDedupTableFixup;

   WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];

   WorkerDataArray<size_t>* _update_rs_processed_buffers;

   WorkerDataArray<size_t>* _termination_attempts;

   WorkerDataArray<size_t>* _redirtied_cards;

   double _cur_collection_par_time_ms;

   double _cur_collection_code_root_fixup_time_ms;

   double _cur_strong_code_root_purge_time_ms;

   double _cur_evac_fail_recalc_used;

   double _cur_evac_fail_restore_remsets;

   double _cur_evac_fail_remove_self_forwards;

   double _cur_string_dedup_fixup_time_ms;

   double _cur_clear_ct_time_ms;

   double _cur_ref_proc_time_ms;

   double _cur_ref_enq_time_ms;

   double _cur_collection_start_sec;

   double _root_region_scan_wait_time_ms;

   double _recorded_young_cset_choice_time_ms;

   double _recorded_non_young_cset_choice_time_ms;

   double _recorded_redirty_logged_cards_time_ms;

   double _recorded_young_free_cset_time_ms;

   double _recorded_non_young_free_cset_time_ms;

   double _cur_fast_reclaim_humongous_time_ms;

   double _cur_fast_reclaim_humongous_register_time_ms;

   size_t _cur_fast_reclaim_humongous_total;

   size_t _cur_fast_reclaim_humongous_candidates;

   size_t _cur_fast_reclaim_humongous_reclaimed;

   double _cur_verify_before_time_ms;

   double _cur_verify_after_time_ms;

   // Helper methods for detailed logging

   void print_stats(int level, const char* str, double value);

   void print_stats(int level, const char* str, size_t value);

   void print_stats(int level, const char* str, double value, uint workers);

  public:

   G1GCPhaseTimes(uint max_gc_threads);

   void note_gc_start(uint active_gc_threads, bool mark_in_progress);

   void note_gc_end();

   void print(double pause_time_sec);

   // record the time a phase took in seconds

   void record_time_secs(GCParPhases phase, uint worker_i, double secs);

   // add a number of seconds to a phase

   void add_time_secs(GCParPhases phase, uint worker_i, double secs);

   void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);

   // return the average time for a phase in milliseconds

   double average_time_ms(GCParPhases phase);

   size_t sum_thread_work_items(GCParPhases phase);

  private:

   double get_time_ms(GCParPhases phase, uint worker_i);

   double sum_time_ms(GCParPhases phase);

   double min_time_ms(GCParPhases phase);

   double max_time_ms(GCParPhases phase);

   size_t get_thread_work_item(GCParPhases phase, uint worker_i);

   double average_thread_work_items(GCParPhases phase);

   size_t min_thread_work_items(GCParPhases phase);

   size_t max_thread_work_items(GCParPhases phase);

  public:

   void record_clear_ct_time(double ms) {

     _cur_clear_ct_time_ms = ms;

   }

   void record_par_time(double ms) {

     _cur_collection_par_time_ms = ms;

   }

   void record_code_root_fixup_time(double ms) {

     _cur_collection_code_root_fixup_time_ms = ms;

   }

   void record_strong_code_root_purge_time(double ms) {

     _cur_strong_code_root_purge_time_ms = ms;

   }

   void record_evac_fail_recalc_used_time(double ms) {

     _cur_evac_fail_recalc_used = ms;

   }

   void record_evac_fail_restore_remsets(double ms) {

     _cur_evac_fail_restore_remsets = ms;

   }

   void record_evac_fail_remove_self_forwards(double ms) {

     _cur_evac_fail_remove_self_forwards = ms;

   }

   void record_string_dedup_fixup_time(double ms) {

     _cur_string_dedup_fixup_time_ms = ms;

   }

   void record_ref_proc_time(double ms) {

     _cur_ref_proc_time_ms = ms;

   }

   void record_ref_enq_time(double ms) {

     _cur_ref_enq_time_ms = ms;

   }

   void record_root_region_scan_wait_time(double time_ms) {

     _root_region_scan_wait_time_ms = time_ms;

   }

   void record_young_free_cset_time_ms(double time_ms) {

     _recorded_young_free_cset_time_ms = time_ms;

   }

   void record_non_young_free_cset_time_ms(double time_ms) {

     _recorded_non_young_free_cset_time_ms = time_ms;

   }

   void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {

     _cur_fast_reclaim_humongous_register_time_ms = time_ms;

     _cur_fast_reclaim_humongous_total = total;

     _cur_fast_reclaim_humongous_candidates = candidates;

   }

   void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {

     _cur_fast_reclaim_humongous_time_ms = value;

     _cur_fast_reclaim_humongous_reclaimed = reclaimed;

   }

   void record_young_cset_choice_time_ms(double time_ms) {

     _recorded_young_cset_choice_time_ms = time_ms;

   }

   void record_non_young_cset_choice_time_ms(double time_ms) {

     _recorded_non_young_cset_choice_time_ms = time_ms;

   }

   void record_redirty_logged_cards_time_ms(double time_ms) {

     _recorded_redirty_logged_cards_time_ms = time_ms;

   }

   void record_cur_collection_start_sec(double time_ms) {

     _cur_collection_start_sec = time_ms;

   }

   void record_verify_before_time_ms(double time_ms) {

     _cur_verify_before_time_ms = time_ms;

   }

   void record_verify_after_time_ms(double time_ms) {

     _cur_verify_after_time_ms = time_ms;

   }

   double accounted_time_ms();

   double cur_collection_start_sec() {

     return _cur_collection_start_sec;

   }

   double cur_collection_par_time_ms() {

     return _cur_collection_par_time_ms;

   }

   double cur_clear_ct_time_ms() {

     return _cur_clear_ct_time_ms;

   }

   double root_region_scan_wait_time_ms() {

     return _root_region_scan_wait_time_ms;

   }

   double young_cset_choice_time_ms() {

     return _recorded_young_cset_choice_time_ms;

   }

   double young_free_cset_time_ms() {

     return _recorded_young_free_cset_time_ms;

   }

   double non_young_cset_choice_time_ms() {

     return _recorded_non_young_cset_choice_time_ms;

   }

   double non_young_free_cset_time_ms() {

     return _recorded_non_young_free_cset_time_ms;

   }

   double fast_reclaim_humongous_time_ms() {

     return _cur_fast_reclaim_humongous_time_ms;

   }

 };

 class G1GCParPhaseTimesTracker : public StackObj {

   Ticks _start_time;

   G1GCPhaseTimes::GCParPhases _phase;

   G1GCPhaseTimes* _phase_times;

   uint _worker_id;

 public:

   G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);

   ~G1GCParPhaseTimesTracker();

 };

 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP