--- a/hotspot/src/share/vm/runtime/arguments.cpp	Fri Apr 29 09:11:03 2011 +0200
+++ b/hotspot/src/share/vm/runtime/arguments.cpp	Wed May 04 15:08:44 2011 -0700
@@ -1423,6 +1423,11 @@
       }
     }
   }
+  if (UseNUMA) {
+    if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) {
+      FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M);
+    }
+  }
 }
 
 void Arguments::set_g1_gc_flags() {