diff -r 27f6a9b9c311 -r 83b687ce3090 src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Wed Jul 29 11:01:26 2009 -0400
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Jul 30 14:50:58 2009 -0400
@@ -2845,6 +2845,11 @@
   if (PrintHeapAtGC) {
     Universe::print_heap_after_gc();
   }
+  if (G1SummarizeRSetStats &&
+      (G1SummarizeRSetStatsPeriod > 0) &&
+      (total_collections() % G1SummarizeRSetStatsPeriod == 0)) {
+    g1_rem_set()->print_summary_info();
+  }
 }
 
 void G1CollectedHeap::set_gc_alloc_region(int purpose, HeapRegion* r) {