src/hotspot/share/gc/z/zDriver.cpp

concurrent root iterator v2

concurrent root iterator

*** 334,353 ****
    }
  
    // Phase 2: Concurrent Mark
    {
      ZStatTimer timer(ZPhaseConcurrentMark);
!     ZHeap::heap()->mark();
    }
  
    // Phase 3: Pause Mark End
    {
      ZMarkEndClosure cl;
      while (!vm_operation(&cl)) {
        // Phase 3.5: Concurrent Mark Continue
        ZStatTimer timer(ZPhaseConcurrentMarkContinue);
!       ZHeap::heap()->mark();
      }
    }
  
    // Phase 4: Concurrent Process Non-Strong References
    {
--- 334,353 ----
    }
  
    // Phase 2: Concurrent Mark
    {
      ZStatTimer timer(ZPhaseConcurrentMark);
!     ZHeap::heap()->mark(true /* initial */);
    }
  
    // Phase 3: Pause Mark End
    {
      ZMarkEndClosure cl;
      while (!vm_operation(&cl)) {
        // Phase 3.5: Concurrent Mark Continue
        ZStatTimer timer(ZPhaseConcurrentMarkContinue);
!       ZHeap::heap()->mark(false /* initial */);
      }
    }
  
    // Phase 4: Concurrent Process Non-Strong References
    {