--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Wed Sep 25 17:23:41 2013 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Sep 26 12:49:45 2013 +0200
@@ -3681,6 +3681,11 @@
   assert(InlineCacheBuffer::is_empty(), "should have cleaned up ICBuffer");
   // Fill TLAB's and such
   ensure_parsability(true);
+
+  if (G1SummarizeRSetStats && (G1SummarizeRSetStatsPeriod > 0) &&
+      (total_collections() % G1SummarizeRSetStatsPeriod == 0)) {
+    g1_rem_set()->print_periodic_summary_info("Before GC RS summary");
+  }
 }
 
 void G1CollectedHeap::gc_epilogue(bool full /* Ignored */) {
@@ -3689,7 +3694,7 @@
       (G1SummarizeRSetStatsPeriod > 0) &&
       // we are at the end of the GC. Total collections has already been increased.
       ((total_collections() - 1) % G1SummarizeRSetStatsPeriod == 0)) {
-    g1_rem_set()->print_periodic_summary_info();
+    g1_rem_set()->print_periodic_summary_info("After GC RS summary");
   }
 
   // FIXME: what is this about?