--- old/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	2013-11-11 18:33:03.297625446 +0100
+++ new/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	2013-11-11 18:33:02.832607789 +0100
@@ -263,7 +263,7 @@
   assert(_preserved_mark_stack.is_empty(), "should be empty");
   assert(_preserved_oop_stack.is_empty(), "should be empty");
 
-  _gc_timer.register_gc_start(os::elapsed_counter());
+  _gc_timer.register_gc_start();
 
   TimeStamp scavenge_entry;
   TimeStamp scavenge_midpoint;
@@ -691,7 +691,7 @@
 #endif
 
 
-  _gc_timer.register_gc_end(os::elapsed_counter());
+  _gc_timer.register_gc_end();
 
   _gc_tracer.report_gc_end(_gc_timer.gc_end(), _gc_timer.time_partitions());