--- old/src/share/vm/runtime/arguments.cpp	2011-12-13 16:12:29.951269000 -0800
+++ new/src/share/vm/runtime/arguments.cpp	2011-12-13 16:12:29.677695000 -0800
@@ -1000,6 +1000,13 @@
     UseInterpreter           = false;
     BackgroundCompilation    = false;
     ClipInlining             = false;
+    // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more.
+    // We will first compile a level 3 version, then do one invocation of it and 
+    // compile a level 4 and then continue executing it. 
+    if (TieredCompilation) {
+      Tier3InvokeNotifyFreqLog = 0;
+      Tier4InvocationThreshold = 0;
+    }
     break;
   }
 }