src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp

rev 6327 : 8019342: G1: High "Other" time most likely due to card redirtying
Summary: Parallelize card redirtying to decrease the time it takes.
Reviewed-by: brutisso

@@ -26,10 +26,11 @@
 #define SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTG1REFINETHREAD_HPP
 
 #include "gc_implementation/shared/concurrentGCThread.hpp"
 
 // Forward Decl.
+class CardTableEntryClosure;
 class ConcurrentG1Refine;
 
 // The G1 Concurrent Refinement Thread (could be several in the future).
 
 class ConcurrentG1RefineThread: public ConcurrentGCThread {

@@ -47,10 +48,13 @@
   bool _active;
   ConcurrentG1RefineThread* _next;
   Monitor* _monitor;
   ConcurrentG1Refine* _cg1r;
 
+  // The closure applied to completed log buffers.
+  CardTableEntryClosure* _refine_closure;
+
   int _thread_threshold_step;
   // This thread activation threshold
   int _threshold;
   // This thread deactivation threshold
   int _deactivation_threshold;

@@ -66,10 +70,11 @@
 
 public:
   virtual void run();
   // Constructor
   ConcurrentG1RefineThread(ConcurrentG1Refine* cg1r, ConcurrentG1RefineThread* next,
+                           CardTableEntryClosure* refine_closure,
                            uint worker_id_offset, uint worker_id);
 
   void initialize();
 
   // Printing