diff -r cf0685d550f1 -r 99af867dfa05 src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Wed Jan 20 22:10:33 2010 -0800
+++ b/src/share/vm/runtime/arguments.cpp	Tue Jan 26 08:53:24 2010 -0800
@@ -2815,6 +2815,15 @@
     DebugNonSafepoints = true;
   }
 
+#ifndef PRODUCT
+  if (CompileTheWorld) {
+    // Force NmethodSweeper to sweep whole CodeCache each time.
+    if (FLAG_IS_DEFAULT(NmethodSweepFraction)) {
+      NmethodSweepFraction = 1;
+    }
+  }
+#endif
+
   if (PrintCommandLineFlags) {
     CommandLineFlags::printSetFlags();
   }