Changeset 60323 in webkit for trunk/JavaScriptCore/runtime/Collector.cpp

Timestamp:

May 27, 2010, 2:45:10 PM (15 years ago)

Author:

[email protected]

Message:

2010-05-27 Nathan Lawrence <​[email protected]>

Reviewed by Geoffrey Garen.

Search for the new allocation one word at a time. Improves
performance on SunSpider by approximately 1%.
​http://bugs.webkit.org/show_bug.cgi?id=39758

• runtime/Collector.cpp: (JSC::Heap::allocate):
• runtime/Collector.h: (JSC::CollectorBitmap::advanceToNextPossibleFreeCell):

File:

• trunk/JavaScriptCore/runtime/Collector.cpp (modified) (1 diff)

trunk/JavaScriptCore/runtime/Collector.cpp

@@ -395 +395 @@
                 return cell;
             }
-        } while (++m_heap.nextCell != HeapConstants::cellsPerBlock);
+            block->marked.advanceToNextPossibleFreeCell(m_heap.nextCell);
+        } while (m_heap.nextCell != HeapConstants::cellsPerBlock);
         m_heap.nextCell = 0;
     } while (++m_heap.nextBlock != m_heap.usedBlocks);