src/share/vm/gc/g1/concurrentMark.hpp

rev 9733 : [mq]: webrev.00
rev 9734 : [mq]: webrev.01

@@ -351,10 +351,13 @@
   // point when all the tasks complete their work. It is really used
   // to determine the points between the end of concurrent marking and
   // time of remark.
   volatile bool           _concurrent_marking_in_progress;
 
+  // Keep track of whether we have started concurrent phase or not.
+  volatile bool           _concurrent_phase_started;
+
   // All of these times are in ms
   NumberSeq _init_times;
   NumberSeq _remark_times;
   NumberSeq _remark_mark_times;
   NumberSeq _remark_weak_ref_times;

@@ -514,10 +517,13 @@
   }
   void clear_concurrent_marking_in_progress() {
     _concurrent_marking_in_progress = false;
   }
 
+  void register_concurrent_phase_start(const char* title);
+  void register_concurrent_phase_end();
+
   void update_accum_task_vtime(int i, double vtime) {
     _accum_task_vtime[i] += vtime;
   }
 
   double all_task_accum_vtime() {