18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 
  25 #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  26 #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 
  31 class ShenandoahWorkerPolicy : AllStatic {
  32 private:
  33   static uint _prev_par_marking;
  34   static uint _prev_conc_marking;
  35   static uint _prev_conc_evac;
  36   static uint _prev_fullgc;
  37   static uint _prev_degengc;
  38   static uint _prev_stw_partial;
  39   static uint _prev_conc_partial;
  40   static uint _prev_stw_traversal;
  41   static uint _prev_conc_traversal;
  42   static uint _prev_conc_update_ref;
  43   static uint _prev_par_update_ref;
  44   static uint _prev_conc_cleanup;
  45 
  46 public:
  47   // Calculate the number of workers for initial marking
  48   static uint calc_workers_for_init_marking();
  49 
  50   // Calculate the number of workers for concurrent marking
  51   static uint calc_workers_for_conc_marking();
  52 
  53   // Calculate the number of workers for final marking
  54   static uint calc_workers_for_final_marking();
  55 
  56   // Calculate workers for concurrent evacuation (concurrent GC)
  57   static uint calc_workers_for_conc_evac();
  58 
  59   // Calculate workers for parallel full gc
  60   static uint calc_workers_for_fullgc();
  61 
  62   // Calculate workers for parallel degenerated gc
  63   static uint calc_workers_for_stw_degenerated();
  64 
  65   // Calculate workers for Stop-the-world partial GC
  66   static uint calc_workers_for_stw_partial();
  67 
  68   // Calculate workers for concurrent partial GC
  69   static uint calc_workers_for_conc_partial();
  70 
  71   // Calculate workers for Stop-the-world traversal GC
  72   static uint calc_workers_for_stw_traversal();
  73 
  74   // Calculate workers for concurrent traversal GC
  75   static uint calc_workers_for_conc_traversal();
  76 
  77   // Calculate workers for concurrent reference update
  78   static uint calc_workers_for_conc_update_ref();
  79 
  80   // Calculate workers for parallel/final reference update
  81   static uint calc_workers_for_final_update_ref();
  82 
  83   // Calculate workers for concurrent precleaning
  84   static uint calc_workers_for_conc_preclean();
  85 
  86   // Calculate workers for concurrent cleanup
  87   static uint calc_workers_for_conc_cleanup();
  88 };
  89 

  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 
  25 #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  26 #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 
  31 class ShenandoahWorkerPolicy : AllStatic {
  32 private:
  33   static uint _prev_par_marking;
  34   static uint _prev_conc_marking;
  35   static uint _prev_conc_evac;
  36   static uint _prev_fullgc;
  37   static uint _prev_degengc;


  38   static uint _prev_stw_traversal;
  39   static uint _prev_conc_traversal;
  40   static uint _prev_conc_update_ref;
  41   static uint _prev_par_update_ref;
  42   static uint _prev_conc_cleanup;
  43 
  44 public:
  45   // Calculate the number of workers for initial marking
  46   static uint calc_workers_for_init_marking();
  47 
  48   // Calculate the number of workers for concurrent marking
  49   static uint calc_workers_for_conc_marking();
  50 
  51   // Calculate the number of workers for final marking
  52   static uint calc_workers_for_final_marking();
  53 
  54   // Calculate workers for concurrent evacuation (concurrent GC)
  55   static uint calc_workers_for_conc_evac();
  56 
  57   // Calculate workers for parallel full gc
  58   static uint calc_workers_for_fullgc();
  59 
  60   // Calculate workers for parallel degenerated gc
  61   static uint calc_workers_for_stw_degenerated();






  62 
  63   // Calculate workers for Stop-the-world traversal GC
  64   static uint calc_workers_for_stw_traversal();
  65 
  66   // Calculate workers for concurrent traversal GC
  67   static uint calc_workers_for_conc_traversal();
  68 
  69   // Calculate workers for concurrent reference update
  70   static uint calc_workers_for_conc_update_ref();
  71 
  72   // Calculate workers for parallel/final reference update
  73   static uint calc_workers_for_final_update_ref();
  74 
  75   // Calculate workers for concurrent precleaning
  76   static uint calc_workers_for_conc_preclean();
  77 
  78   // Calculate workers for concurrent cleanup
  79   static uint calc_workers_for_conc_cleanup();
  80 };
  81