--- old/src/share/vm/gc_implementation/g1/g1RemSet.cpp	2013-06-04 16:41:55.499706450 +0200
+++ new/src/share/vm/gc_implementation/g1/g1RemSet.cpp	2013-06-04 16:41:55.319706446 +0200
@@ -700,12 +700,12 @@
   return has_refs_into_cset;
 }
 
-void G1RemSet::print_periodic_summary_info() {
+void G1RemSet::print_periodic_summary_info(const char* header) {
   G1RemSetSummary current;
   current.initialize(this, n_workers());
 
   _prev_period_summary.subtract_from(&current);
-  print_summary_info(&_prev_period_summary);
+  print_summary_info(&_prev_period_summary, header);
 
   _prev_period_summary.set(&current);
 }