src/share/vm/gc/shared/plab.hpp

rev 8816 : imported patch 8073013-add-detailed-information-about-plab-memory-usage

*** 24,35 ****
  
  #ifndef SHARE_VM_GC_SHARED_PLAB_HPP
  #define SHARE_VM_GC_SHARED_PLAB_HPP
  
  #include "gc/shared/gcUtil.hpp"
! #include "memory/allocation.hpp"
! #include "runtime/atomic.hpp"
  #include "utilities/globalDefinitions.hpp"
  
  // Forward declarations.
  class PLABStats;
  
--- 24,35 ----
  
  #ifndef SHARE_VM_GC_SHARED_PLAB_HPP
  #define SHARE_VM_GC_SHARED_PLAB_HPP
  
  #include "gc/shared/gcUtil.hpp"
! #include "memory/allocation.inline.hpp"
! #include "runtime/atomic.inline.hpp"
  #include "utilities/globalDefinitions.hpp"
  
  // Forward declarations.
  class PLABStats;
  
*** 147,166 ****
  
    void print() PRODUCT_RETURN;
  };
  
  // PLAB book-keeping.
! class PLABStats VALUE_OBJ_CLASS_SPEC {
    size_t _allocated;          // Total allocated
    size_t _wasted;             // of which wasted (internal fragmentation)
    size_t _undo_wasted;        // of which wasted on undo (is not used for calculation of PLAB size)
    size_t _unused;             // Unused in last buffer
    size_t _desired_net_plab_sz;// Output of filter (below), suitably trimmed and quantized
    AdaptiveWeightedAverage
           _filter;             // Integrator with decay
  
!   void reset() {
      _allocated   = 0;
      _wasted      = 0;
      _undo_wasted = 0;
      _unused      = 0;
    }
--- 147,167 ----
  
    void print() PRODUCT_RETURN;
  };
  
  // PLAB book-keeping.
! class PLABStats : public CHeapObj<mtGC> {
!  protected:
    size_t _allocated;          // Total allocated
    size_t _wasted;             // of which wasted (internal fragmentation)
    size_t _undo_wasted;        // of which wasted on undo (is not used for calculation of PLAB size)
    size_t _unused;             // Unused in last buffer
    size_t _desired_net_plab_sz;// Output of filter (below), suitably trimmed and quantized
    AdaptiveWeightedAverage
           _filter;             // Integrator with decay
  
!   virtual void reset() {
      _allocated   = 0;
      _wasted      = 0;
      _undo_wasted = 0;
      _unused      = 0;
    }
*** 172,181 ****
--- 173,184 ----
      _unused(0),
      _desired_net_plab_sz(desired_net_plab_sz_),
      _filter(wt)
    { }
  
+   virtual ~PLABStats() { }
+ 
    static const size_t min_size() {
      return PLAB::min_size();
    }
  
    static const size_t max_size() {
*** 185,195 ****
    // Calculates plab size for current number of gc worker threads.
    size_t desired_plab_sz(uint no_of_gc_workers);
  
    // Updates the current desired PLAB size. Computes the new desired PLAB size with one gc worker thread,
    // updates _desired_plab_sz and clears sensor accumulators.
!   void adjust_desired_plab_sz();
  
    void add_allocated(size_t v) {
      Atomic::add_ptr(v, &_allocated);
    }
  
--- 188,198 ----
    // Calculates plab size for current number of gc worker threads.
    size_t desired_plab_sz(uint no_of_gc_workers);
  
    // Updates the current desired PLAB size. Computes the new desired PLAB size with one gc worker thread,
    // updates _desired_plab_sz and clears sensor accumulators.
!   virtual void adjust_desired_plab_sz();
  
    void add_allocated(size_t v) {
      Atomic::add_ptr(v, &_allocated);
    }