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

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

*** 31,42 ****
--- 31,44 ----
  #include "runtime/handles.inline.hpp"
  #include "runtime/mutexLocker.hpp"
  
  ConcurrentG1RefineThread::
  ConcurrentG1RefineThread(ConcurrentG1Refine* cg1r, ConcurrentG1RefineThread *next,
+                          CardTableEntryClosure* refine_closure,
                           uint worker_id_offset, uint worker_id) :
    ConcurrentGCThread(),
+   _refine_closure(refine_closure),
    _worker_id_offset(worker_id_offset),
    _worker_id(worker_id),
    _active(false),
    _next(next),
    _monitor(NULL),
*** 202,212 ****
  
          // Check if we need to activate the next thread.
          if (_next != NULL && !_next->is_active() && curr_buffer_num > _next->_threshold) {
            _next->activate();
          }
!       } while (dcqs.apply_closure_to_completed_buffer(_worker_id + _worker_id_offset, cg1r()->green_zone()));
  
        // We can exit the loop above while being active if there was a yield request.
        if (is_active()) {
          deactivate();
        }
--- 204,214 ----
  
          // Check if we need to activate the next thread.
          if (_next != NULL && !_next->is_active() && curr_buffer_num > _next->_threshold) {
            _next->activate();
          }
!       } while (dcqs.apply_closure_to_completed_buffer(_refine_closure, _worker_id + _worker_id_offset, cg1r()->green_zone()));
  
        // We can exit the loop above while being active if there was a yield request.
        if (is_active()) {
          deactivate();
        }