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

rev 7854 : imported patch 8027962-per-phase-timing-measurements-for-strong-roots-processing

*** 84,93 ****
--- 84,95 ----
  };
  
  G1CollectorPolicy::G1CollectorPolicy() :
    _parallel_gc_threads(ParallelGCThreads),
  
+   _phase_times(NULL),
+ 
    _recent_gc_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
    _stop_world_start(0.0),
  
    _concurrent_mark_remark_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
    _concurrent_mark_cleanup_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
*** 206,217 ****
    }
  
    _recent_prev_end_times_for_all_gcs_sec->add(os::elapsedTime());
    _prev_collection_pause_end_ms = os::elapsedTime() * 1000.0;
  
-   _phase_times = new G1GCPhaseTimes(_parallel_gc_threads);
- 
    int index = MIN2(_parallel_gc_threads - 1, 7);
  
    _rs_length_diff_seq->add(rs_length_diff_defaults[index]);
    _cost_per_card_ms_seq->add(cost_per_card_ms_defaults[index]);
    _young_cards_per_entry_ratio_seq->add(
--- 208,217 ----
*** 433,442 ****
--- 433,443 ----
    recalculate_min_max_young_length(new_number_of_heap_regions, &_min_desired_young_length,
            &_max_desired_young_length);
  }
  
  void G1CollectorPolicy::init() {
+   _phase_times = new G1GCPhaseTimes(_parallel_gc_threads, G1Log::finest() ? G1CollectedHeap::num_ext_root_tasks() : 0);
    // Set aside an initial future to_space.
    _g1 = G1CollectedHeap::heap();
  
    assert(Heap_lock->owned_by_self(), "Locking discipline.");