--- old/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp	2011-12-20 11:11:12.761433765 -0800
+++ new/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp	2011-12-20 11:11:12.531569554 -0800
@@ -40,7 +40,6 @@
   double _vtime_accum;  // Accumulated virtual time.
 
   double _vtime_mark_accum;
-  double _vtime_count_accum;
 
  public:
   virtual void run();
@@ -69,8 +68,6 @@
   double vtime_accum();
   // Marking virtual time so far
   double vtime_mark_accum();
-  // Counting virtual time so far.
-  double vtime_count_accum() { return _vtime_count_accum; }
 
   ConcurrentMark* cm()     { return _cm; }