Grow big old generation slower.

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 979b41e77ca1ea2bb8a8c3b9009ca8cfe41b68f8..37da91c9078fc9126cdbc560850f40f9f210f939 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1087,9 +1087,19 @@ class Heap {
       700 * kPointerMultiplier;
 
   intptr_t OldGenerationAllocationLimit(intptr_t old_gen_size) {
-    intptr_t limit = FLAG_stress_compaction
-        ? old_gen_size + old_gen_size / 10
-        : old_gen_size * old_space_growing_factor_;
+    intptr_t limit;
+    if (FLAG_stress_compaction) {
+      limit = old_gen_size + old_gen_size / 10;
+    } else if (old_gen_size < max_old_generation_size_/8) {

[ulan, 2014/06/05 14:13:12]

Nit: spaces around "/"

[Hannes Payer (out of office), 2014/06/05 14:46:23]

Done.

+      limit = old_gen_size * 4;
+    } else if (old_gen_size < max_old_generation_size_/4) {
+      limit = old_gen_size * 1.5;
+    } else if (old_gen_size < max_old_generation_size_/2) {
+      limit = old_gen_size * 1.2;
+    } else {
+      limit = old_gen_size * 1.1;
+    }
+
     limit = Max(limit, kMinimumOldGenerationAllocationLimit);
     limit += new_space_.Capacity();
     intptr_t halfway_to_the_max = (old_gen_size + max_old_generation_size_) / 2;
@@ -1498,11 +1508,6 @@ class Heap {
   intptr_t max_executable_size_;
   intptr_t maximum_committed_;
 
-  // The old space growing factor is used in the old space heap growing
-  // strategy. The new old space size is the current old space size times
-  // old_space_growing_factor_.
-  int old_space_growing_factor_;
-
   // For keeping track of how much data has survived
   // scavenge since last new space expansion.
   int survived_since_last_expansion_;