Version 3.0.2.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index ccf9b47a35c56f48f4d6a5beb8f03da7392a469b..0497ad5f6a3d0b12ff72fbf94c6c61f43f8dab4b 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -3757,21 +3757,14 @@ bool Heap::IdleNotification() {
   static const int kIdlesBeforeScavenge = 4;
   static const int kIdlesBeforeMarkSweep = 7;
   static const int kIdlesBeforeMarkCompact = 8;
-  static const int kMaxIdleCount = kIdlesBeforeMarkCompact + 1;
-  static const int kGCsBetweenCleanup = 4;
   static int number_idle_notifications = 0;
   static int last_gc_count = gc_count_;
 
   bool uncommit = true;
   bool finished = false;
 
-  // Reset the number of idle notifications received when a number of
-  // GCs have taken place. This allows another round of cleanup based
-  // on idle notifications if enough work has been carried out to
-  // provoke a number of garbage collections.
-  if (gc_count_ < last_gc_count + kGCsBetweenCleanup) {
-    number_idle_notifications =
-        Min(number_idle_notifications + 1, kMaxIdleCount);
+  if (last_gc_count == gc_count_) {
+    number_idle_notifications++;
   } else {
     number_idle_notifications = 0;
     last_gc_count = gc_count_;
@@ -3786,6 +3779,7 @@ bool Heap::IdleNotification() {
     }
     new_space_.Shrink();
     last_gc_count = gc_count_;
+
   } else if (number_idle_notifications == kIdlesBeforeMarkSweep) {
     // Before doing the mark-sweep collections we clear the
     // compilation cache to avoid hanging on to source code and
@@ -3800,6 +3794,7 @@ bool Heap::IdleNotification() {
     CollectAllGarbage(true);
     new_space_.Shrink();
     last_gc_count = gc_count_;
+    number_idle_notifications = 0;
     finished = true;
 
   } else if (contexts_disposed_ > 0) {
@@ -3818,11 +3813,6 @@ bool Heap::IdleNotification() {
       number_idle_notifications = 0;
       uncommit = false;
     }
-  } else if (number_idle_notifications > kIdlesBeforeMarkCompact) {
-    // If we have received more than kIdlesBeforeMarkCompact idle
-    // notifications we do not perform any cleanup because we don't
-    // expect to gain much by doing so.
-    finished = true;
   }
 
   // Make sure that we have no pending context disposals and