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

*** 43,53 ****
    _end(NULL), _hard_end(NULL), _allocated(0), _wasted(0), _undo_wasted(0)
  {
    // ArrayOopDesc::header_size depends on command line initialization.
    AlignmentReserve = oopDesc::header_size() > MinObjAlignment ? align_object_size(arrayOopDesc::header_size(T_INT)) : 0;
    assert(min_size() > AlignmentReserve,
!          err_msg("Minimum PLAB size " SIZE_FORMAT" must be larger than alignment reserve " SIZE_FORMAT" "
                   "to be able to contain objects", min_size(), AlignmentReserve));
  }
  
  // If the minimum object size is greater than MinObjAlignment, we can
  // end up with a shard at the end of the buffer that's smaller than
--- 43,53 ----
    _end(NULL), _hard_end(NULL), _allocated(0), _wasted(0), _undo_wasted(0)
  {
    // ArrayOopDesc::header_size depends on command line initialization.
    AlignmentReserve = oopDesc::header_size() > MinObjAlignment ? align_object_size(arrayOopDesc::header_size(T_INT)) : 0;
    assert(min_size() > AlignmentReserve,
!          err_msg("Minimum PLAB size " SIZE_FORMAT " must be larger than alignment reserve " SIZE_FORMAT " "
                   "to be able to contain objects", min_size(), AlignmentReserve));
  }
  
  // If the minimum object size is greater than MinObjAlignment, we can
  // end up with a shard at the end of the buffer that's smaller than
*** 119,132 ****
           "PLAB clipping computation may be incorrect");
  
    if (_allocated == 0) {
      assert(_unused == 0,
             err_msg("Inconsistency in PLAB stats: "
!                    "_allocated: "SIZE_FORMAT", "
!                    "_wasted: "SIZE_FORMAT", "
!                    "_unused: "SIZE_FORMAT", "
!                    "_undo_wasted: "SIZE_FORMAT,
                     _allocated, _wasted, _unused, _undo_wasted));
  
      _allocated = 1;
    }
    double wasted_frac    = (double)_unused / (double)_allocated;
--- 119,132 ----
           "PLAB clipping computation may be incorrect");
  
    if (_allocated == 0) {
      assert(_unused == 0,
             err_msg("Inconsistency in PLAB stats: "
!                    "_allocated: " SIZE_FORMAT ", "
!                    "_wasted: " SIZE_FORMAT ", "
!                    "_unused: " SIZE_FORMAT ", "
!                    "_undo_wasted: " SIZE_FORMAT,
                     _allocated, _wasted, _unused, _undo_wasted));
  
      _allocated = 1;
    }
    double wasted_frac    = (double)_unused / (double)_allocated;
*** 142,152 ****
    size_t new_plab_sz = MAX2(min_size(), (size_t)_filter.average());
    new_plab_sz = MIN2(max_size(), new_plab_sz);
    new_plab_sz = align_object_size(new_plab_sz);
    // Latch the result
    if (PrintPLAB) {
!     gclog_or_tty->print(" (plab_sz = " SIZE_FORMAT" desired_plab_sz = " SIZE_FORMAT") ", recent_plab_sz, new_plab_sz);
    }
    _desired_plab_sz = new_plab_sz;
  
    reset();
  }
--- 142,152 ----
    size_t new_plab_sz = MAX2(min_size(), (size_t)_filter.average());
    new_plab_sz = MIN2(max_size(), new_plab_sz);
    new_plab_sz = align_object_size(new_plab_sz);
    // Latch the result
    if (PrintPLAB) {
!     gclog_or_tty->print(" (plab_sz = " SIZE_FORMAT " desired_plab_sz = " SIZE_FORMAT ") ", recent_plab_sz, new_plab_sz);
    }
    _desired_plab_sz = new_plab_sz;
  
    reset();
  }