src/share/vm/memory/sharedHeap.hpp

rev 7854 : imported patch 8027962-per-phase-timing-measurements-for-strong-roots-processing

*** 44,53 ****
--- 44,54 ----
  class SubTasksDone;
  class WorkGang;
  class FlexibleWorkGang;
  class CollectorPolicy;
  class KlassClosure;
+ class GCPhaseTimeTracker;
  
  // Note on use of FlexibleWorkGang's for GC.
  // There are three places where task completion is determined.
  // In
  //    1) ParallelTaskTerminator::offer_termination() where _n_threads
*** 101,111 ****
--- 102,130 ----
  class SharedHeap : public CollectedHeap {
    friend class VMStructs;
  
    friend class VM_GC_Operation;
    friend class VM_CGC_Operation;
+ public:
+   // The set of potentially parallel tasks in root scanning.
+   enum SH_process_roots_tasks {
+     SH_PS_Threads_oops_do,
+     SH_PS_StringTable_oops_do,
+     SH_PS_Universe_oops_do,
+     SH_PS_JNIHandles_oops_do,
+     SH_PS_ObjectSynchronizer_oops_do,
+     SH_PS_FlatProfiler_oops_do,
+     SH_PS_Management_oops_do,
+     SH_PS_SystemDictionary_oops_do,
+     SH_PS_ClassLoaderDataGraph_oops_do,
+     SH_PS_jvmti_oops_do,
+     SH_PS_CodeCache_oops_do,
+     // Leave this one last.
+     SH_PS_NumElements
+   };
  
+   static const char* ext_roots_task_str(uint task);
  private:
    // For claiming strong_roots tasks.
    SubTasksDone* _process_strong_tasks;
  
  protected:
*** 238,258 ****
                       ScanningOption so,
                       OopClosure* strong_roots,
                       OopClosure* weak_roots,
                       CLDClosure* strong_cld_closure,
                       CLDClosure* weak_cld_closure,
!                      CodeBlobClosure* code_roots);
    void process_all_roots(bool activate_scope,
                           ScanningOption so,
                           OopClosure* roots,
                           CLDClosure* cld_closure,
!                          CodeBlobClosure* code_roots);
    void process_strong_roots(bool activate_scope,
                              ScanningOption so,
                              OopClosure* roots,
                              CLDClosure* cld_closure,
!                             CodeBlobClosure* code_roots);
  
  
    // Apply "root_closure" to the JNI weak roots..
    void process_weak_roots(OopClosure* root_closure);
  
--- 257,280 ----
                       ScanningOption so,
                       OopClosure* strong_roots,
                       OopClosure* weak_roots,
                       CLDClosure* strong_cld_closure,
                       CLDClosure* weak_cld_closure,
!                      CodeBlobClosure* code_roots,
!                      GCPhaseTimeTracker* phase_durations = NULL);
    void process_all_roots(bool activate_scope,
                           ScanningOption so,
                           OopClosure* roots,
                           CLDClosure* cld_closure,
!                          CodeBlobClosure* code_roots,
!                          GCPhaseTimeTracker* phase_durations = NULL);
    void process_strong_roots(bool activate_scope,
                              ScanningOption so,
                              OopClosure* roots,
                              CLDClosure* cld_closure,
!                             CodeBlobClosure* code_roots,
!                             GCPhaseTimeTracker* phase_durations = NULL);
  
  
    // Apply "root_closure" to the JNI weak roots..
    void process_weak_roots(OopClosure* root_closure);