[heap] Reduce store buffer size to increase chance to run concurrent store buffer processing thread…

src/heap/store-buffer.h

Index: src/heap/store-buffer.h
diff --git a/src/heap/store-buffer.h b/src/heap/store-buffer.h
index 09faf4dcbddba9c94eddf50e24a05ffb777e570c..31bb19c25ecbaebaa481af04b93e5e94cd315a8b 100644
--- a/src/heap/store-buffer.h
+++ b/src/heap/store-buffer.h
@@ -24,7 +24,7 @@ namespace internal {
 // slots are moved to the remembered set.
 class StoreBuffer {
  public:
-  static const int kStoreBufferSize = 1 << (14 + kPointerSizeLog2);
+  static const int kStoreBufferSize = 1 << (11 + kPointerSizeLog2);
   static const int kStoreBufferMask = kStoreBufferSize - 1;
   static const int kStoreBuffers = 2;
   static const intptr_t kDeletionTag = 1;