src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp

*** 837,851 ****
  
  void G1CollectorPolicy::record_stop_world_start() {
    _stop_world_start = os::elapsedTime();
  }
  
! void G1CollectorPolicy::record_collection_pause_start(double start_time_sec) {
    // We only need to do this here as the policy will only be applied
    // to the GC we're about to start. so, no point is calculating this
    // every time we calculate / recalculate the target young length.
!   update_survivors_policy();
  
    assert(_g1->used() == _g1->recalculate_used(),
           err_msg("sanity, used: " SIZE_FORMAT " recalculate_used: " SIZE_FORMAT,
                   _g1->used(), _g1->recalculate_used()));
  
--- 837,851 ----
  
  void G1CollectorPolicy::record_stop_world_start() {
    _stop_world_start = os::elapsedTime();
  }
  
! void G1CollectorPolicy::record_collection_pause_start(double start_time_sec, GCTracer &tracer) {
    // We only need to do this here as the policy will only be applied
    // to the GC we're about to start. so, no point is calculating this
    // every time we calculate / recalculate the target young length.
!   update_survivors_policy(tracer);
  
    assert(_g1->used() == _g1->recalculate_used(),
           err_msg("sanity, used: " SIZE_FORMAT " recalculate_used: " SIZE_FORMAT,
                   _g1->used(), _g1->recalculate_used()));
  
*** 1451,1469 ****
    _young_list_max_length = _young_list_target_length + expansion_region_num;
    assert(_young_list_target_length <= _young_list_max_length, "post-condition");
  }
  
  // Calculates survivor space parameters.
! void G1CollectorPolicy::update_survivors_policy() {
    double max_survivor_regions_d =
                   (double) _young_list_target_length / (double) SurvivorRatio;
    // We use ceiling so that if max_survivor_regions_d is > 0.0 (but
    // smaller than 1.0) we'll get 1.
    _max_survivor_regions = (uint) ceil(max_survivor_regions_d);
  
    _tenuring_threshold = _survivors_age_table.compute_tenuring_threshold(
!         HeapRegion::GrainWords * _max_survivor_regions);
  }
  
  bool G1CollectorPolicy::force_initial_mark_if_outside_cycle(
                                                       GCCause::Cause gc_cause) {
    bool during_cycle = _g1->concurrent_mark()->cmThread()->during_cycle();
--- 1451,1469 ----
    _young_list_max_length = _young_list_target_length + expansion_region_num;
    assert(_young_list_target_length <= _young_list_max_length, "post-condition");
  }
  
  // Calculates survivor space parameters.
! void G1CollectorPolicy::update_survivors_policy(GCTracer &tracer) {
    double max_survivor_regions_d =
                   (double) _young_list_target_length / (double) SurvivorRatio;
    // We use ceiling so that if max_survivor_regions_d is > 0.0 (but
    // smaller than 1.0) we'll get 1.
    _max_survivor_regions = (uint) ceil(max_survivor_regions_d);
  
    _tenuring_threshold = _survivors_age_table.compute_tenuring_threshold(
!         HeapRegion::GrainWords * _max_survivor_regions, tracer);
  }
  
  bool G1CollectorPolicy::force_initial_mark_if_outside_cycle(
                                                       GCCause::Cause gc_cause) {
    bool during_cycle = _g1->concurrent_mark()->cmThread()->during_cycle();