Print finalize incremental marking event in idle notification.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 4390 matching lines @@
   CollectAllGarbage(kReduceMemoryFootprintMask, message);
   gc_idle_time_handler_.NotifyIdleMarkCompact();
   gc_count_at_last_idle_gc_ = gc_count_;
   if (uncommit) {
     new_space_.Shrink();
     UncommitFromSpace();
   }
 }
 
 
-void Heap::TryFinalizeIdleIncrementalMarking(
+bool Heap::TryFinalizeIdleIncrementalMarking(
     double idle_time_in_ms, size_t size_of_objects,
     size_t final_incremental_mark_compact_speed_in_bytes_per_ms) {
   if (incremental_marking()->IsComplete() ||
       (mark_compact_collector_.marking_deque()->IsEmpty() &&
        gc_idle_time_handler_.ShouldDoFinalIncrementalMarkCompact(
            static_cast<size_t>(idle_time_in_ms), size_of_objects,
            final_incremental_mark_compact_speed_in_bytes_per_ms))) {
     CollectAllGarbage(kNoGCFlags, "idle notification: finalize incremental");
+    return true;
   }
+  return false;
 }
 
 
 bool Heap::WorthActivatingIncrementalMarking() {
   return incremental_marking()->IsStopped() &&
          incremental_marking()->WorthActivating() && NextGCIsLikelyToBeFull();
 }
 
 
 static double MonotonicallyIncreasingTimeInMs() {
@@ skipping 64 matching lines @@
             action.parameter, IncrementalMarking::NO_GC_VIA_STACK_GUARD,
             IncrementalMarking::FORCE_MARKING,
             IncrementalMarking::DO_NOT_FORCE_COMPLETION);
         remaining_idle_time_in_ms =
             deadline_in_ms - MonotonicallyIncreasingTimeInMs();
       } while (remaining_idle_time_in_ms >=
                    2.0 * GCIdleTimeHandler::kIncrementalMarkingStepTimeInMs &&
                !incremental_marking()->IsComplete() &&
                !mark_compact_collector_.marking_deque()->IsEmpty());
       if (remaining_idle_time_in_ms > 0.0) {
-        TryFinalizeIdleIncrementalMarking(
+        action.additional_work = TryFinalizeIdleIncrementalMarking(
             remaining_idle_time_in_ms, heap_state.size_of_objects,
             heap_state.final_incremental_mark_compact_speed_in_bytes_per_ms);
       }
       break;
     }
     case DO_FULL_GC: {
       if (contexts_disposed_) {
         HistogramTimerScope scope(isolate_->counters()->gc_context());
         CollectAllGarbage(kNoGCFlags, "idle notification: contexts disposed");
         gc_idle_time_handler_.NotifyIdleMarkCompact();
@@ skipping 1860 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 }
 }  // namespace v8::internal