diff -r e94ed1591b42 -r 203f64878aab src/share/vm/runtime/perfData.cpp
--- a/src/share/vm/runtime/perfData.cpp	Wed Jan 16 16:30:04 2013 +0100
+++ b/src/share/vm/runtime/perfData.cpp	Thu Jan 17 10:25:16 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -192,7 +192,7 @@
 }
 
 int PerfLong::format(char* buffer, int length) {
-  return jio_snprintf(buffer, length,"%lld", *(jlong*)_valuep);
+  return jio_snprintf(buffer, length, JLONG_FORMAT, *(jlong*)_valuep);
 }
 
 PerfLongVariant::PerfLongVariant(CounterNS ns, const char* namep, Units u,