diff -r 308762b2bf14 -r e1fdf4fd34dc src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Aug 14 13:44:15 2009 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Wed Aug 19 12:53:25 2009 -0400
@@ -927,7 +927,6 @@
     TraceTime t(full ? "Full GC (System.gc())" : "Full GC", PrintGC, true, gclog_or_tty);
 
     double start = os::elapsedTime();
-    GCOverheadReporter::recordSTWStart(start);
     g1_policy()->record_full_collection_start();
 
     gc_prologue(true);
@@ -1049,7 +1048,6 @@
     }
 
     double end = os::elapsedTime();
-    GCOverheadReporter::recordSTWEnd(end);
     g1_policy()->record_full_collection_end();
 
 #ifdef TRACESPINNING
@@ -1610,9 +1608,6 @@
   // Do later initialization work for concurrent refinement.
   _cg1r->init();
 
-  const char* group_names[] = { "CR", "ZF", "CM", "CL" };
-  GCOverheadReporter::initGCOverheadReporter(4, group_names);
-
   return JNI_OK;
 }
 
@@ -2431,8 +2426,6 @@
   }
   g1_policy()->print_yg_surv_rate_info();
 
-  GCOverheadReporter::printGCOverhead();
-
   SpecializationStats::print();
 }
 
@@ -2669,7 +2662,6 @@
       // The elapsed time induced by the start time below deliberately elides
       // the possible verification above.
       double start_time_sec = os::elapsedTime();
-      GCOverheadReporter::recordSTWStart(start_time_sec);
       size_t start_used_bytes = used();
 
       g1_policy()->record_collection_pause_start(start_time_sec,
@@ -2798,7 +2790,6 @@
       double end_time_sec = os::elapsedTime();
       double pause_time_ms = (end_time_sec - start_time_sec) * MILLIUNITS;
       g1_policy()->record_pause_time_ms(pause_time_ms);
-      GCOverheadReporter::recordSTWEnd(end_time_sec);
       g1_policy()->record_collection_pause_end(abandoned);
 
       assert(regions_accounted_for(), "Region leakage.");