src/hotspot/share/gc/g1/g1Analytics.cpp

rev 56067 : [mq]: renaming
rev 56069 : [mq]: copyrights

*** 1,7 ****
  /*
!  * Copyright (c) 2016, 2018, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2016, 2019, 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.
*** 36,46 ****
  // all the same
  static double rs_length_diff_defaults[] = {
    0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0
  };
  
! static double cost_per_log_buffer_entry_ms_defaults[] = {
    0.01, 0.005, 0.005, 0.003, 0.003, 0.002, 0.002, 0.0015
  };
  
  // all the same
  static double young_cards_per_entry_ratio_defaults[] = {
--- 36,46 ----
  // all the same
  static double rs_length_diff_defaults[] = {
    0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0
  };
  
! static double cost_per_logged_card_ms_defaults[] = {
    0.01, 0.005, 0.005, 0.003, 0.003, 0.002, 0.002, 0.0015
  };
  
  // all the same
  static double young_cards_per_entry_ratio_defaults[] = {
*** 75,85 ****
      _concurrent_mark_remark_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
      _concurrent_mark_cleanup_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
      _alloc_rate_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _prev_collection_pause_end_ms(0.0),
      _rs_length_diff_seq(new TruncatedSeq(TruncatedSeqLength)),
!     _cost_per_log_buffer_entry_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _cost_scan_hcc_seq(new TruncatedSeq(TruncatedSeqLength)),
      _young_cards_per_entry_ratio_seq(new TruncatedSeq(TruncatedSeqLength)),
      _mixed_cards_per_entry_ratio_seq(new TruncatedSeq(TruncatedSeqLength)),
      _young_only_cost_per_remset_card_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _mixed_cost_per_remset_card_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
--- 75,85 ----
      _concurrent_mark_remark_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
      _concurrent_mark_cleanup_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
      _alloc_rate_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _prev_collection_pause_end_ms(0.0),
      _rs_length_diff_seq(new TruncatedSeq(TruncatedSeqLength)),
!     _cost_per_logged_card_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _cost_scan_hcc_seq(new TruncatedSeq(TruncatedSeqLength)),
      _young_cards_per_entry_ratio_seq(new TruncatedSeq(TruncatedSeqLength)),
      _mixed_cards_per_entry_ratio_seq(new TruncatedSeq(TruncatedSeqLength)),
      _young_only_cost_per_remset_card_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
      _mixed_cost_per_remset_card_ms_seq(new TruncatedSeq(TruncatedSeqLength)),
*** 99,109 ****
    _prev_collection_pause_end_ms = os::elapsedTime() * 1000.0;
  
    int index = MIN2(ParallelGCThreads - 1, 7u);
  
    _rs_length_diff_seq->add(rs_length_diff_defaults[index]);
!   _cost_per_log_buffer_entry_ms_seq->add(cost_per_log_buffer_entry_ms_defaults[index]);
    _cost_scan_hcc_seq->add(0.0);
    _young_cards_per_entry_ratio_seq->add(young_cards_per_entry_ratio_defaults[index]);
    _young_only_cost_per_remset_card_ms_seq->add(young_only_cost_per_remset_card_ms_defaults[index]);
    _cost_per_byte_ms_seq->add(cost_per_byte_ms_defaults[index]);
    _constant_other_time_ms_seq->add(constant_other_time_ms_defaults[index]);
--- 99,109 ----
    _prev_collection_pause_end_ms = os::elapsedTime() * 1000.0;
  
    int index = MIN2(ParallelGCThreads - 1, 7u);
  
    _rs_length_diff_seq->add(rs_length_diff_defaults[index]);
!   _cost_per_logged_card_ms_seq->add(cost_per_logged_card_ms_defaults[index]);
    _cost_scan_hcc_seq->add(0.0);
    _young_cards_per_entry_ratio_seq->add(young_cards_per_entry_ratio_defaults[index]);
    _young_only_cost_per_remset_card_ms_seq->add(young_only_cost_per_remset_card_ms_defaults[index]);
    _cost_per_byte_ms_seq->add(cost_per_byte_ms_defaults[index]);
    _constant_other_time_ms_seq->add(constant_other_time_ms_defaults[index]);
*** 156,167 ****
    // This reduces the likelihood of a needless heap expansion being triggered.
    _last_pause_time_ratio =
      (pause_time_ms * _recent_prev_end_times_for_all_gcs_sec->num()) / interval_ms;
  }
  
! void G1Analytics::report_cost_per_log_buffer_entry_ms(double cost_per_log_buffer_entry_ms) {
!   _cost_per_log_buffer_entry_ms_seq->add(cost_per_log_buffer_entry_ms);
  }
  
  void G1Analytics::report_cost_scan_hcc(double cost_scan_hcc) {
    _cost_scan_hcc_seq->add(cost_scan_hcc);
  }
--- 156,167 ----
    // This reduces the likelihood of a needless heap expansion being triggered.
    _last_pause_time_ratio =
      (pause_time_ms * _recent_prev_end_times_for_all_gcs_sec->num()) / interval_ms;
  }
  
! void G1Analytics::report_cost_per_logged_card_ms(double cost_per_logged_card_ms) {
!   _cost_per_logged_card_ms_seq->add(cost_per_logged_card_ms);
  }
  
  void G1Analytics::report_cost_scan_hcc(double cost_scan_hcc) {
    _cost_scan_hcc_seq->add(cost_scan_hcc);
  }
*** 220,239 ****
  
  double G1Analytics::predict_alloc_rate_ms() const {
    return get_new_prediction(_alloc_rate_ms_seq);
  }
  
! double G1Analytics::predict_cost_per_log_buffer_entry_ms() const {
!   return get_new_prediction(_cost_per_log_buffer_entry_ms_seq);
  }
  
  double G1Analytics::predict_scan_hcc_ms() const {
    return get_new_prediction(_cost_scan_hcc_seq);
  }
  
  double G1Analytics::predict_rs_update_time_ms(size_t pending_cards) const {
!   return pending_cards * predict_cost_per_log_buffer_entry_ms() + predict_scan_hcc_ms();
  }
  
  double G1Analytics::predict_young_cards_per_entry_ratio() const {
    return get_new_prediction(_young_cards_per_entry_ratio_seq);
  }
--- 220,239 ----
  
  double G1Analytics::predict_alloc_rate_ms() const {
    return get_new_prediction(_alloc_rate_ms_seq);
  }
  
! double G1Analytics::predict_cost_per_logged_card_ms() const {
!   return get_new_prediction(_cost_per_logged_card_ms_seq);
  }
  
  double G1Analytics::predict_scan_hcc_ms() const {
    return get_new_prediction(_cost_scan_hcc_seq);
  }
  
  double G1Analytics::predict_rs_update_time_ms(size_t pending_cards) const {
!   return pending_cards * predict_cost_per_logged_card_ms() + predict_scan_hcc_ms();
  }
  
  double G1Analytics::predict_young_cards_per_entry_ratio() const {
    return get_new_prediction(_young_cards_per_entry_ratio_seq);
  }