Add GCTracer metrics for a scavenger GC for DOM wrappers

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index ae58be32a1f44cb712333a6276e091e700bb21ad..bb2a612a3f3740b85c2f7cea8802a0404f4beef4 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -961,7 +961,8 @@ bool Heap::PerformGarbageCollection(GarbageCollector collector,
   { DisableAssertNoAllocation allow_allocation;
     GCTracer::Scope scope(tracer, GCTracer::Scope::EXTERNAL);
     next_gc_likely_to_collect_more =
-        isolate_->global_handles()->PostGarbageCollectionProcessing(collector);
+        isolate_->global_handles()->PostGarbageCollectionProcessing(
+            collector, tracer);
   }
   gc_post_processing_depth_--;
 
@@ -7052,6 +7053,9 @@ GCTracer::GCTracer(Heap* heap,
       allocated_since_last_gc_(0),
       spent_in_mutator_(0),
       promoted_objects_size_(0),
+      died_nodes_in_new_space_(0),
+      copied_nodes_in_new_space_(0),
+      promoted_nodes_(0),
       heap_(heap),
       gc_reason_(gc_reason),
       collector_reason_(collector_reason) {
@@ -7192,6 +7196,9 @@ GCTracer::~GCTracer() {
 
     PrintF("allocated=%" V8_PTR_PREFIX "d ", allocated_since_last_gc_);
     PrintF("promoted=%" V8_PTR_PREFIX "d ", promoted_objects_size_);
+    PrintF("died_nodes_in_new=%" V8_PTR_PREFIX "d ", died_nodes_in_new_space_);
+    PrintF("copied_nodes_in_new=%" V8_PTR_PREFIX "d ", copied_nodes_in_new_space_);

[Michael Starzinger, 2012/12/05 14:26:14]

More than 80 characters.

[haraken, 2012/12/06 11:08:15]

Done.

+    PrintF("promoted_nodes=%" V8_PTR_PREFIX "d ", promoted_nodes_);
 
     if (collector_ == SCAVENGER) {
       PrintF("stepscount=%d ", steps_count_since_last_gc_);