src/share/vm/jfr/leakprofiler/startOperation.hpp

rev 9055 : 8214542: JFR: Old Object Sample event slow on a deep heap in debug builds
Reviewed-by: egahlin, rwestberg

*** 23,59 ****
   */
  
  #ifndef SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP
  #define SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP
  
- #include "jfr/recorder/jfrRecorder.hpp"
- #include "jfr/leakprofiler/leakProfiler.hpp"
  #include "jfr/leakprofiler/sampling/objectSampler.hpp"
! #include "jfr/recorder/service/jfrOptionSet.hpp"
! #include "runtime/vm_operations.hpp"
  
! // Safepoint operation for starting leak profiler object sampler
! class StartOperation : public VM_Operation {
   private:
!   jlong _sample_count;
   public:
!   StartOperation(jlong sample_count) :
!     _sample_count(sample_count) {
!   }
! 
!   Mode evaluation_mode() const {
!     return _safepoint;
!   }
! 
!   VMOp_Type type() const {
!     return VMOp_GC_HeapInspection;
!   }
! 
    virtual void doit() {
!     assert(!LeakProfiler::is_running(), "invariant");
!     jint queue_size = JfrOptionSet::old_object_queue_size();
!     LeakProfiler::set_object_sampler(new ObjectSampler(queue_size));
!     if (LogJFR && Verbose) tty->print_cr( "Object sampling started");
    }
  };
  
  #endif // SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP
--- 23,42 ----
   */
  
  #ifndef SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP
  #define SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP
  
  #include "jfr/leakprofiler/sampling/objectSampler.hpp"
! #include "jfr/leakprofiler/utilities/vmOperation.hpp"
  
! // Safepoint operation for creating and starting the leak profiler object sampler
! class StartOperation : public OldObjectVMOperation {
   private:
!   int _sample_count;
   public:
!   StartOperation(int sample_count) : _sample_count(sample_count) {}
    virtual void doit() {
!     ObjectSampler::create(_sample_count);
    }
  };
  
  #endif // SHARE_VM_LEAKPROFILER_STARTOPERATION_HPP