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 /*

  * Copyright (c) 2012, 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

  * questions.

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  */

 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP

 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP

 #include "memory/allocation.hpp"

 #include "gc_interface/gcCause.hpp"

 class G1GCPhaseTimes : public CHeapObj<mtGC> {

   friend class G1CollectorPolicy;

   friend class TraceGen0TimeData;

  private:

   uint _active_gc_threads;

   uint _max_gc_threads;

   GCCause::Cause _gc_cause;

   bool           _is_young_gc;

   bool           _is_initial_mark_gc;

   double _pause_start_time_sec;

   double* _par_last_gc_worker_start_times_ms;

   double* _par_last_ext_root_scan_times_ms;

   double* _par_last_satb_filtering_times_ms;

   double* _par_last_update_rs_times_ms;

   double* _par_last_update_rs_processed_buffers;

   double* _par_last_scan_rs_times_ms;

   double* _par_last_obj_copy_times_ms;

   double* _par_last_termination_times_ms;

   double* _par_last_termination_attempts;

   double* _par_last_gc_worker_end_times_ms;

   double* _par_last_gc_worker_times_ms;

   double* _par_last_gc_worker_other_times_ms;

   double _cur_collection_par_time_ms;

   double _cur_collection_code_root_fixup_time_ms;

   double _cur_clear_ct_time_ms;

   double _cur_ref_proc_time_ms;

   double _cur_ref_enq_time_ms;

   // Helper methods for detailed logging

   void print_par_stats(int level, const char* str, double* data, bool showDecimals = true);

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

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

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

   double avg_value(double* data);

   double max_value(double* data);

   double sum_of_values(double* data);

   double max_sum(double* data1, double* data2);

   double accounted_time_ms();

   // Card Table Count Cache stats

   double _min_clear_cc_time_ms;         // min

   double _max_clear_cc_time_ms;         // max

   double _cur_clear_cc_time_ms;         // clearing time during current pause

   double _cum_clear_cc_time_ms;         // cummulative clearing time

   jlong  _num_cc_clears;                // number of times the card count cache has been cleared

   // The following insance variables are directly accessed by G1CollectorPolicy

   // and TraceGen0TimeData. This is why those classes are declared friends.

   // An alternative is to add getters and setters for all of these fields.

   // It might also be possible to restructure the code to reduce these

   // dependencies.

   double _ext_root_scan_time;

   double _satb_filtering_time;

   double _update_rs_time;

   double _update_rs_processed_buffers;

   double _scan_rs_time;

   double _obj_copy_time;

   double _termination_time;

   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_young_free_cset_time_ms;

   double _recorded_non_young_free_cset_time_ms;

   void print(double pause_time_ms);

  public:

   G1GCPhaseTimes(uint max_gc_threads);

   void note_gc_start(double pause_start_time_sec, uint active_gc_threads,

     bool is_young_gc, bool is_initial_mark_gc, GCCause::Cause gc_cause);

   void note_gc_end(double pause_end_time_sec);

   void collapse_par_times();

   void record_gc_worker_start_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_gc_worker_start_times_ms[worker_i] = ms;

   }

   void record_ext_root_scan_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_ext_root_scan_times_ms[worker_i] = ms;

   }

   void record_satb_filtering_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_satb_filtering_times_ms[worker_i] = ms;

   }

   void record_update_rs_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_update_rs_times_ms[worker_i] = ms;

   }

   void record_update_rs_processed_buffers (uint worker_i,

                                            double processed_buffers) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_update_rs_processed_buffers[worker_i] = processed_buffers;

   }

   void record_scan_rs_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_scan_rs_times_ms[worker_i] = ms;

   }

   void reset_obj_copy_time(uint worker_i) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_obj_copy_times_ms[worker_i] = 0.0;

   }

   void reset_obj_copy_time() {

     reset_obj_copy_time(0);

   }

   void record_obj_copy_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_obj_copy_times_ms[worker_i] += ms;

   }

   void record_termination(uint worker_i, double ms, size_t attempts) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_termination_times_ms[worker_i] = ms;

     _par_last_termination_attempts[worker_i] = (double) attempts;

   }

   void record_gc_worker_end_time(uint worker_i, double ms) {

     assert(worker_i >= 0, "worker index must be > 0");

     assert(worker_i < _active_gc_threads, "worker index out of bounds");

     _par_last_gc_worker_end_times_ms[worker_i] = ms;

   }

   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_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_cc_clear_time_ms(double 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;

   }

 };

 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP