Grow big old generation slower.

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 7d9233b30af6de7d2f21cb0d4ad4460d635c9ded..b9da7346c957ffb0406d32d8afedf3b912751893 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1085,9 +1085,23 @@ 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) {
+      if (max_old_generation_size_ <= kMaxOldSpaceSizeMediumMemoryDevice) {
+        limit = old_gen_size * 2;
+      } else {
+        limit = old_gen_size * 4;
+      }
+    } else if (old_gen_size < max_old_generation_size_ / 4) {
+      limit = static_cast<intptr_t>(old_gen_size * 1.5);
+    } else if (old_gen_size < max_old_generation_size_ / 2) {
+      limit = static_cast<intptr_t>(old_gen_size * 1.2);
+    } else {
+      limit = static_cast<intptr_t>(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;
@@ -1512,11 +1526,6 @@ 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_;