--- old/src/hotspot/share/gc/g1/vm_operations_g1.cpp 2017-09-27 00:03:26.020294924 +0900 +++ new/src/hotspot/share/gc/g1/vm_operations_g1.cpp 2017-09-27 00:03:25.818294661 +0900 @@ -209,6 +209,8 @@ GCTraceCPUTime tcpu; G1CollectedHeap* g1h = G1CollectedHeap::heap(); GCTraceTime(Info, gc) t(_printGCMessage, g1h->concurrent_mark()->gc_timer_cm(), GCCause::_no_gc, true); + TraceCollectorStats tcs(g1h->g1mm()->conc_collection_counters()); + SvcGCMarker sgcm(SvcGCMarker::CONCURRENT); IsGCActiveMark x; _cl->do_void(); }