src/hotspot/share/gc/parallel/psParallelCompact.cpp

rev 60422 : [mq]: 8248401-ayang-review

*** 841,851 ****
  STWGCTimer          PSParallelCompact::_gc_timer;
  ParallelOldTracer   PSParallelCompact::_gc_tracer;
  elapsedTimer        PSParallelCompact::_accumulated_time;
  unsigned int        PSParallelCompact::_total_invocations = 0;
  unsigned int        PSParallelCompact::_maximum_compaction_gc_num = 0;
- jlong               PSParallelCompact::_time_of_last_gc = 0;
  CollectorCounters*  PSParallelCompact::_counters = NULL;
  ParMarkBitMap       PSParallelCompact::_mark_bitmap;
  ParallelCompactData PSParallelCompact::_summary_data;
  
  PSParallelCompact::IsAliveClosure PSParallelCompact::_is_alive_closure;
--- 841,850 ----
*** 1068,1079 ****
  
    if (ZapUnusedHeapArea) {
      heap->gen_mangle_unused_area();
    }
  
!   // Update time of last GC
!   reset_millis_since_last_gc();
  }
  
  HeapWord*
  PSParallelCompact::compute_dense_prefix_via_density(const SpaceId id,
                                                      bool maximum_compaction)
--- 1067,1078 ----
  
    if (ZapUnusedHeapArea) {
      heap->gen_mangle_unused_area();
    }
  
!   // Signal that we have completed a visit to all live objects.
!   Universe::heap()->record_whole_heap_examined_timestamp();
  }
  
  HeapWord*
  PSParallelCompact::compute_dense_prefix_via_density(const SpaceId id,
                                                      bool maximum_compaction)
*** 3195,3223 ****
        return;
      }
    }
  }
  
- jlong PSParallelCompact::millis_since_last_gc() {
-   // We need a monotonically non-decreasing time in ms but
-   // os::javaTimeMillis() does not guarantee monotonicity.
-   jlong now = os::javaTimeNanos() / NANOSECS_PER_MILLISEC;
-   jlong ret_val = now - _time_of_last_gc;
-   // XXX See note in genCollectedHeap::millis_since_last_gc().
-   if (ret_val < 0) {
-     NOT_PRODUCT(log_warning(gc)("time warp: " JLONG_FORMAT, ret_val);)
-     return 0;
-   }
-   return ret_val;
- }
- 
- void PSParallelCompact::reset_millis_since_last_gc() {
-   // We need a monotonically non-decreasing time in ms but
-   // os::javaTimeMillis() does not guarantee monotonicity.
-   _time_of_last_gc = os::javaTimeNanos() / NANOSECS_PER_MILLISEC;
- }
- 
  ParMarkBitMap::IterationStatus MoveAndUpdateClosure::copy_until_full()
  {
    if (source() != copy_destination()) {
      DEBUG_ONLY(PSParallelCompact::check_new_location(source(), destination());)
      Copy::aligned_conjoint_words(source(), copy_destination(), words_remaining());
--- 3194,3203 ----