src/share/vm/gc_implementation/g1/concurrentG1Refine.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

*** 27,37 ****
  #include "gc_implementation/g1/concurrentG1RefineThread.hpp"
  #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  #include "gc_implementation/g1/g1HotCardCache.hpp"
  #include "runtime/java.hpp"
  
! ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h) :
    _threads(NULL), _n_threads(0),
    _hot_card_cache(g1h)
  {
    // Ergomonically select initial concurrent refinement parameters
    if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
--- 27,37 ----
  #include "gc_implementation/g1/concurrentG1RefineThread.hpp"
  #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  #include "gc_implementation/g1/g1HotCardCache.hpp"
  #include "runtime/java.hpp"
  
! ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h, CardTableEntryClosure* refine_closure) :
    _threads(NULL), _n_threads(0),
    _hot_card_cache(g1h)
  {
    // Ergomonically select initial concurrent refinement parameters
    if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
*** 59,69 ****
  
    uint worker_id_offset = DirtyCardQueueSet::num_par_ids();
  
    ConcurrentG1RefineThread *next = NULL;
    for (uint i = _n_threads - 1; i != UINT_MAX; i--) {
!     ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, worker_id_offset, i);
      assert(t != NULL, "Conc refine should have been created");
      if (t->osthread() == NULL) {
          vm_shutdown_during_initialization("Could not create ConcurrentG1RefineThread");
      }
  
--- 59,69 ----
  
    uint worker_id_offset = DirtyCardQueueSet::num_par_ids();
  
    ConcurrentG1RefineThread *next = NULL;
    for (uint i = _n_threads - 1; i != UINT_MAX; i--) {
!     ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, refine_closure, worker_id_offset, i);
      assert(t != NULL, "Conc refine should have been created");
      if (t->osthread() == NULL) {
          vm_shutdown_during_initialization("Could not create ConcurrentG1RefineThread");
      }