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

rev 60421 : [mq]: 8248401-stefank-review

@@ -841,11 +841,10 @@
 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;

@@ -1043,10 +1042,12 @@
 
   // Update heap occupancy information which is used as input to the soft ref
   // clearing policy at the next gc.
   Universe::update_heap_info_at_gc();
 
+  Universe::heap()->next_whole_heap_examined();
+
   bool young_gen_empty = eden_empty && from_space->is_empty() &&
     to_space->is_empty();
 
   PSCardTable* ct = heap->card_table();
   MemRegion old_mr = heap->old_gen()->reserved();

@@ -1067,13 +1068,10 @@
 #endif
 
   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)

@@ -3195,29 +3193,10 @@
       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());