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src/hotspot/share/gc/shenandoah/shenandoahWorkerPolicy.hpp

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  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  25 #define SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 
  29 class ShenandoahWorkerPolicy : AllStatic {
  30 private:
  31   static uint _prev_par_marking;
  32   static uint _prev_conc_marking;
  33   static uint _prev_conc_root_proc;
  34   static uint _prev_conc_evac;
  35   static uint _prev_fullgc;
  36   static uint _prev_degengc;
  37   static uint _prev_stw_traversal;
  38   static uint _prev_conc_traversal;
  39   static uint _prev_conc_update_ref;
  40   static uint _prev_par_update_ref;
  41   static uint _prev_conc_cleanup;
  42   static uint _prev_conc_reset;
  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 root processing
  55   static uint calc_workers_for_conc_root_processing();
  56 
  57   // Calculate workers for concurrent evacuation (concurrent GC)
  58   static uint calc_workers_for_conc_evac();
  59 
  60   // Calculate workers for parallel full gc
  61   static uint calc_workers_for_fullgc();
  62 
  63   // Calculate workers for parallel degenerated gc
  64   static uint calc_workers_for_stw_degenerated();
  65 
  66   // Calculate workers for Stop-the-world traversal GC
  67   static uint calc_workers_for_stw_traversal();
  68 
  69   // Calculate workers for concurrent traversal GC
  70   static uint calc_workers_for_conc_traversal();
  71 
  72   // Calculate workers for concurrent reference update
  73   static uint calc_workers_for_conc_update_ref();
  74 
  75   // Calculate workers for parallel/final reference update


  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  25 #define SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 
  29 class ShenandoahWorkerPolicy : AllStatic {
  30 private:
  31   static uint _prev_par_marking;
  32   static uint _prev_conc_marking;

  33   static uint _prev_conc_evac;
  34   static uint _prev_fullgc;
  35   static uint _prev_degengc;
  36   static uint _prev_stw_traversal;
  37   static uint _prev_conc_traversal;
  38   static uint _prev_conc_update_ref;
  39   static uint _prev_par_update_ref;
  40   static uint _prev_conc_cleanup;
  41   static uint _prev_conc_reset;
  42 
  43 public:
  44   // Calculate the number of workers for initial marking
  45   static uint calc_workers_for_init_marking();
  46 
  47   // Calculate the number of workers for concurrent marking
  48   static uint calc_workers_for_conc_marking();
  49 
  50   // Calculate the number of workers for final marking
  51   static uint calc_workers_for_final_marking();



  52 
  53   // Calculate workers for concurrent evacuation (concurrent GC)
  54   static uint calc_workers_for_conc_evac();
  55 
  56   // Calculate workers for parallel full gc
  57   static uint calc_workers_for_fullgc();
  58 
  59   // Calculate workers for parallel degenerated gc
  60   static uint calc_workers_for_stw_degenerated();
  61 
  62   // Calculate workers for Stop-the-world traversal GC
  63   static uint calc_workers_for_stw_traversal();
  64 
  65   // Calculate workers for concurrent traversal GC
  66   static uint calc_workers_for_conc_traversal();
  67 
  68   // Calculate workers for concurrent reference update
  69   static uint calc_workers_for_conc_update_ref();
  70 
  71   // Calculate workers for parallel/final reference update
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