Changed the expansion of new space to depend on how much has survived scaveng...

src/heap.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 809 matching lines @@
     return (PromotedSpaceSize() + PromotedExternalMemorySize())
            > old_gen_allocation_limit_;
   }
 
  private:
   static int semispace_size_;
   static int initial_semispace_size_;
   static int young_generation_size_;
   static int old_generation_size_;
 
-  static int new_space_growth_limit_;
-  static int scavenge_count_;
+  // For keeping track of how much data has survived
+  // scavenge since last new space expansion.
+  static int survived_since_last_expansion_;
 
   static int always_allocate_scope_depth_;
   static bool context_disposed_pending_;
 
   static const int kMaxMapSpaceSize = 8*MB;
 
   static NewSpace new_space_;
   static OldSpace* old_pointer_space_;
   static OldSpace* old_data_space_;
   static OldSpace* code_space_;
@@ skipping 466 matching lines @@
   int marked_count_;
 
   // The count from the end of the previous full GC.  Will be zero if there
   // was no previous full GC.
   int previous_marked_count_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_