src/share/vm/gc/g1/g1CollectedHeap.cpp

rev 10309 : 8150390: Move rs length sampling data to the sampling thread
Reviewed-by:

*** 1398,1408 ****
  
        // Discard all rset updates
        JavaThread::dirty_card_queue_set().abandon_logs();
        assert(dirty_card_queue_set().completed_buffers_num() == 0, "DCQS should be empty");
  
-       _young_list->reset_sampled_info();
        // At this point there should be no regions in the
        // entire heap tagged as young.
        assert(check_young_list_empty(true /* check_heap */),
               "young list should be empty at this point");
  
--- 1398,1407 ----
*** 3388,3399 ****
          // Start a new incremental collection set for the next pause.
          g1_policy()->start_incremental_cset_building();
  
          clear_cset_fast_test();
  
-         _young_list->reset_sampled_info();
- 
          // Don't check the whole heap at this point as the
          // GC alloc regions from this pause have been tagged
          // as survivors and moved on to the survivor list.
          // Survivor regions will fail the !is_young() check.
          assert(check_young_list_empty(false /* check_heap */),
--- 3387,3396 ----
*** 5186,5197 ****
      return false;
    }
    bool success() { return _success; }
  };
  
! bool G1CollectedHeap::check_young_list_empty(bool check_heap, bool check_sample) {
!   bool ret = _young_list->check_list_empty(check_sample);
  
    if (check_heap) {
      NoYoungRegionsClosure closure;
      heap_region_iterate(&closure);
      ret = ret && closure.success();
--- 5183,5194 ----
      return false;
    }
    bool success() { return _success; }
  };
  
! bool G1CollectedHeap::check_young_list_empty(bool check_heap) {
!   bool ret = _young_list->check_list_empty();
  
    if (check_heap) {
      NoYoungRegionsClosure closure;
      heap_region_iterate(&closure);
      ret = ret && closure.success();