diff -r 85d0690f7d12 -r 6a93908f268f src/share/vm/runtime/perfData.hpp
--- a/src/share/vm/runtime/perfData.hpp	Fri Jun 19 07:33:25 2009 -0700
+++ b/src/share/vm/runtime/perfData.hpp	Fri Jul 10 11:10:00 2009 -0700
@@ -868,6 +868,10 @@
   {counter = PerfDataManager::create_counter(counter_ns, counter_name, \
                                              PerfData::U_Events,CHECK);}
 
+#define NEWPERFBYTECOUNTER(counter, counter_ns, counter_name)  \
+  {counter = PerfDataManager::create_counter(counter_ns, counter_name, \
+                                             PerfData::U_Bytes,CHECK);}
+
 // Utility Classes
 
 /*