src/share/vm/gc_implementation/shenandoah/shenandoahWorkerPolicy.cpp

rev 11463 : Backport Traversal GC

*** 30,39 ****
--- 30,41 ----
  uint ShenandoahWorkerPolicy::_prev_par_marking     = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_marking    = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_evac       = 0;
  uint ShenandoahWorkerPolicy::_prev_fullgc          = 0;
  uint ShenandoahWorkerPolicy::_prev_degengc         = 0;
+ uint ShenandoahWorkerPolicy::_prev_stw_traversal   = 0;
+ uint ShenandoahWorkerPolicy::_prev_conc_traversal  = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_update_ref = 0;
  uint ShenandoahWorkerPolicy::_prev_par_update_ref  = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_cleanup    = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_reset      = 0;
  
*** 79,88 ****
--- 81,110 ----
                                              active_workers,
                                              Threads::number_of_non_daemon_threads());
    return _prev_fullgc;
  }
  
+ // Calculate workers for Stop-the-world traversal GC
+ uint ShenandoahWorkerPolicy::calc_workers_for_stw_traversal() {
+   uint active_workers = (_prev_stw_traversal == 0) ? ParallelGCThreads : _prev_stw_traversal;
+   _prev_stw_traversal =
+     AdaptiveSizePolicy::calc_active_workers(ParallelGCThreads,
+                                             active_workers,
+                                             Threads::number_of_non_daemon_threads());
+   return _prev_stw_traversal;
+ }
+ 
+ // Calculate workers for concurent traversal GC
+ uint ShenandoahWorkerPolicy::calc_workers_for_conc_traversal() {
+   uint active_workers = (_prev_conc_traversal == 0) ? ConcGCThreads : _prev_conc_traversal;
+   _prev_conc_traversal =
+     AdaptiveSizePolicy::calc_active_conc_workers(ConcGCThreads,
+                                                  active_workers,
+                                                  Threads::number_of_non_daemon_threads());
+   return _prev_conc_traversal;
+ }
+ 
  // Calculate workers for concurrent reference update
  uint ShenandoahWorkerPolicy::calc_workers_for_conc_update_ref() {
    uint active_workers = (_prev_conc_update_ref == 0) ? ConcGCThreads : _prev_conc_update_ref;
    _prev_conc_update_ref =
      AdaptiveSizePolicy::calc_active_conc_workers(ConcGCThreads,