Introduce a external allocation limit....

src/heap.cc

 // Copyright 2009 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 67 matching lines @@
 int Heap::old_generation_size_ = 512*MB;
 int Heap::initial_semispace_size_ = 512*KB;
 #endif
 
 GCCallback Heap::global_gc_prologue_callback_ = NULL;
 GCCallback Heap::global_gc_epilogue_callback_ = NULL;
 
 // Variables set based on semispace_size_ and old_generation_size_ in
 // ConfigureHeap.
 int Heap::young_generation_size_ = 0;  // Will be 2 * semispace_size_.
-
 int Heap::survived_since_last_expansion_ = 0;
+int Heap::external_allocation_limit_ = 0;
 
 Heap::HeapState Heap::gc_state_ = NOT_IN_GC;
 
 int Heap::mc_count_ = 0;
 int Heap::gc_count_ = 0;
 
 int Heap::always_allocate_scope_depth_ = 0;
 bool Heap::context_disposed_pending_ = false;
 
 #ifdef DEBUG
@@ skipping 2881 matching lines @@
   if (HasBeenSetup()) return false;
 
   if (semispace_size > 0) semispace_size_ = semispace_size;
   if (old_gen_size > 0) old_generation_size_ = old_gen_size;
 
   // The new space size must be a power of two to support single-bit testing
   // for containment.
   semispace_size_ = RoundUpToPowerOf2(semispace_size_);
   initial_semispace_size_ = Min(initial_semispace_size_, semispace_size_);
   young_generation_size_ = 2 * semispace_size_;
+  external_allocation_limit_ = 10 * semispace_size_;
 
   // The old generation is paged.
   old_generation_size_ = RoundUp(old_generation_size_, Page::kPageSize);
 
   heap_configured = true;
   return true;
 }
 
 
 bool Heap::ConfigureHeapDefault() {
@@ skipping 716 matching lines @@
 #ifdef DEBUG
 bool Heap::GarbageCollectionGreedyCheck() {
   ASSERT(FLAG_gc_greedy);
   if (Bootstrapper::IsActive()) return true;
   if (disallow_allocation_failure()) return true;
   return CollectGarbage(0, NEW_SPACE);
 }
 #endif
 
 } }  // namespace v8::internal