Precisely measure duration of mark and sweep phases. Changed print_cumulative_gc_stat flag to only …

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 068c44e713f5569515606e2b582caee994ea17f1..d6f77561ffa8a9187c4cf287af8c3ab41bb462b9 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -561,6 +561,24 @@ class Heap {
     return NULL;
   }
 
+  // TODO(hpayer): remove, should be handled by GCTracer

[Michael Starzinger, 2013/01/29 12:13:47]

Move all of these accessors down to where the others are declared.

[Hannes Payer (out of office), 2013/01/30 10:42:20]

Done.

+  void AddMarkingTime(double marking_time) {
+    marking_time_ += marking_time;
+  }
+
+  double marking_time() const {
+    return marking_time_;
+  }
+
+  // TODO(hpayer): remove, should be handled by GCTracer
+  void AddSweepingTime(double sweeping_time) {
+    sweeping_time_ += sweeping_time;
+  }
+
+  double sweeping_time() const {
+    return sweeping_time_;
+  }
+
   bool always_allocate() { return always_allocate_scope_depth_ != 0; }
   Address always_allocate_scope_depth_address() {
     return reinterpret_cast<Address>(&always_allocate_scope_depth_);
@@ -2022,7 +2040,6 @@ class Heap {
 
   GCTracer* tracer_;
 
-
   // Allocates a small number to string cache.
   MUST_USE_RESULT MaybeObject* AllocateInitialNumberStringCache();
   // Creates and installs the full-sized number string cache.
@@ -2160,6 +2177,12 @@ class Heap {
 
   double last_gc_end_timestamp_;
 
+  // GC time spent in marking

[Michael Starzinger, 2013/01/29 12:13:47]

s/GC time/Cumulative GC time/

[Hannes Payer (out of office), 2013/01/30 10:42:20]

Done.

+  double marking_time_;
+
+  // GC time spent in sweeping

[Michael Starzinger, 2013/01/29 12:13:47]

Likewise.

[Hannes Payer (out of office), 2013/01/30 10:42:20]

Done.

+  double sweeping_time_;
+
   MarkCompactCollector mark_compact_collector_;
 
   StoreBuffer store_buffer_;