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diff src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp @ 3830:f44782f04dd4

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7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former. Reviewed-by: brutisso, johnc, ysr
author tonyp
date Fri, 12 Aug 2011 11:31:06 -0400
parents e8b0b0392037
children 65a8ff39a6da
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Thu Aug 11 11:36:29 2011 -0700
+++ b/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Fri Aug 12 11:31:06 2011 -0400
@@ -364,7 +364,10 @@
   PosParPRT** next_addr() { return &_next; }
 
   bool should_expand(int tid) {
-    return par_tables() == NULL && tid > 0 && hr()->is_gc_alloc_region();
+    // Given that we now defer RSet updates for after a GC we don't
+    // really need to expand the tables any more. This code should be
+    // cleaned up in the future (see CR 6921087).
+    return false;
   }
 
   void par_expand() {