92           GCTraceTime(Info, gc) time("Concurrent marking", gc_timer, GCCause::_no_gc, true);
  93           TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
  94           ShenandoahHeap::heap()->concurrentMark()->mark_from_roots();
  95         }
  96 
  97         {
  98           TraceCollectorStats tcs(heap->monitoring_support()->stw_collection_counters());
  99           VM_ShenandoahStartEvacuation finishMark;
 100           heap->shenandoahPolicy()->record_phase_start(ShenandoahCollectorPolicy::final_mark_gross);
 101           VMThread::execute(&finishMark);
 102           heap->shenandoahPolicy()->record_phase_end(ShenandoahCollectorPolicy::final_mark_gross);
 103         }
 104 
 105         if (! should_terminate()) {
 106           GCTraceTime(Info, gc) time("Concurrent evacuation ", gc_timer, GCCause::_no_gc, true);
 107           TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
 108           heap->do_evacuation();
 109         }
 110 
 111         if (heap->is_evacuation_in_progress()) {

 112           heap->set_evacuation_in_progress(false);
 113         }
 114         heap->shenandoahPolicy()->record_phase_start(ShenandoahCollectorPolicy::reset_bitmaps);
 115         heap->reset_mark_bitmap();
 116         heap->shenandoahPolicy()->record_phase_end(ShenandoahCollectorPolicy::reset_bitmaps);
 117 
 118         gc_timer->register_gc_end();
 119       } else {
 120       Thread::current()->_ParkEvent->park(10) ;
 121       // yield();
 122     }
 123 
 124     // Make sure the _do_full_gc flag changes are seen.
 125     OrderAccess::storeload();
 126   }
 127 }
 128 
 129 void ShenandoahConcurrentThread::stop_service() {
 130   // Nothing to do here.
 131 }

  92           GCTraceTime(Info, gc) time("Concurrent marking", gc_timer, GCCause::_no_gc, true);
  93           TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
  94           ShenandoahHeap::heap()->concurrentMark()->mark_from_roots();
  95         }
  96 
  97         {
  98           TraceCollectorStats tcs(heap->monitoring_support()->stw_collection_counters());
  99           VM_ShenandoahStartEvacuation finishMark;
 100           heap->shenandoahPolicy()->record_phase_start(ShenandoahCollectorPolicy::final_mark_gross);
 101           VMThread::execute(&finishMark);
 102           heap->shenandoahPolicy()->record_phase_end(ShenandoahCollectorPolicy::final_mark_gross);
 103         }
 104 
 105         if (! should_terminate()) {
 106           GCTraceTime(Info, gc) time("Concurrent evacuation ", gc_timer, GCCause::_no_gc, true);
 107           TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
 108           heap->do_evacuation();
 109         }
 110 
 111         if (heap->is_evacuation_in_progress()) {
 112           MutexLocker mu(Threads_lock);
 113           heap->set_evacuation_in_progress(false);
 114         }
 115         heap->shenandoahPolicy()->record_phase_start(ShenandoahCollectorPolicy::reset_bitmaps);
 116         heap->reset_mark_bitmap();
 117         heap->shenandoahPolicy()->record_phase_end(ShenandoahCollectorPolicy::reset_bitmaps);
 118 
 119         gc_timer->register_gc_end();
 120       } else {
 121       Thread::current()->_ParkEvent->park(10) ;
 122       // yield();
 123     }
 124 
 125     // Make sure the _do_full_gc flag changes are seen.
 126     OrderAccess::storeload();
 127   }
 128 }
 129 
 130 void ShenandoahConcurrentThread::stop_service() {
 131   // Nothing to do here.
 132 }