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

rev 55406 : 8225582: Shenandoah: Enable concurrent evacuation of JNIHandles

*** 28,37 ****
--- 28,38 ----
  #include "runtime/thread.hpp"
  
  uint ShenandoahWorkerPolicy::_prev_par_marking     = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_marking    = 0;
  uint ShenandoahWorkerPolicy::_prev_conc_evac       = 0;
+ uint ShenandoahWorkerPolicy::_prev_conc_root_proc  = 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;
*** 61,70 ****
--- 62,81 ----
  // Reuse the calculation result from init marking
  uint ShenandoahWorkerPolicy::calc_workers_for_final_marking() {
    return _prev_par_marking;
  }
  
+ // Calculate workers for concurrent root processing
+ uint ShenandoahWorkerPolicy::calc_workers_for_conc_root_processing() {
+   uint active_workers = (_prev_conc_root_proc == 0) ? ConcGCThreads : _prev_conc_root_proc;
+   _prev_conc_root_proc =
+     WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
+                                            active_workers,
+                                            Threads::number_of_non_daemon_threads());
+   return _prev_conc_root_proc;
+ }
+ 
  // Calculate workers for concurrent evacuation (concurrent GC)
  uint ShenandoahWorkerPolicy::calc_workers_for_conc_evac() {
    uint active_workers = (_prev_conc_evac == 0) ? ConcGCThreads : _prev_conc_evac;
    _prev_conc_evac =
      WorkerPolicy::calc_active_conc_workers(ConcGCThreads,