Mercurial > hg > truffle

diff src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 526:818efdefcc99

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6484956: G1: improve evacuation pause efficiency Summary: A bunch of performance optimizations to decrease GC pause times in G1. Reviewed-by: apetrusenko, jmasa, iveresov
author tonyp
date Fri, 16 Jan 2009 13:02:20 -0500
parents 37f87013dfd8
children 0fbdb4381b99
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp	Wed Jan 14 14:12:55 2009 -0800
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp	Fri Jan 16 13:02:20 2009 -0500
@@ -36,8 +36,11 @@
 
 inline HeapRegion*
 G1CollectedHeap::heap_region_containing_raw(const void* addr) const {
-  HeapRegion* res = _hrs->addr_to_region(addr);
-  assert(res != NULL, "addr outside of heap?");
+  assert(_g1_reserved.contains(addr), "invariant");
+  size_t index = ((intptr_t) addr - (intptr_t) _g1_reserved.start())
+                                              >> HeapRegion::LogOfHRGrainBytes;
+  HeapRegion* res = _hrs->at(index);
+  assert(res == _hrs->addr_to_region(addr), "sanity");
   return res;
 }