src/share/vm/memory/collectorPolicy.cpp

*** 390,400 ****
        // Somebody has set a maximum heap size with the intention that we should not
        // exceed it. Adjust New/OldSize as necessary.
        uintx calculated_size = NewSize + OldSize;
        double shrink_factor = (double) MaxHeapSize / calculated_size;
        uintx smaller_new_size = align_size_down((uintx)(NewSize * shrink_factor), _gen_alignment);
!       FLAG_SET_ERGO(uintx, NewSize, MAX2(young_gen_size_lower_bound(), smaller_new_size));
        _initial_young_size = NewSize;
  
        // OldSize is already aligned because above we aligned MaxHeapSize to
        // _heap_alignment, and we just made sure that NewSize is aligned to
        // _gen_alignment. In initialize_flags() we verified that _heap_alignment
--- 390,400 ----
        // Somebody has set a maximum heap size with the intention that we should not
        // exceed it. Adjust New/OldSize as necessary.
        uintx calculated_size = NewSize + OldSize;
        double shrink_factor = (double) MaxHeapSize / calculated_size;
        uintx smaller_new_size = align_size_down((uintx)(NewSize * shrink_factor), _gen_alignment);
!       FLAG_SET_ERGO(uintx, NewSize, MAX2(young_gen_size_lower_bound(), (size_t)smaller_new_size));
        _initial_young_size = NewSize;
  
        // OldSize is already aligned because above we aligned MaxHeapSize to
        // _heap_alignment, and we just made sure that NewSize is aligned to
        // _gen_alignment. In initialize_flags() we verified that _heap_alignment
*** 455,465 ****
      // Bound the maximum size by NewSize below (since it historically
      // would have been NewSize and because the NewRatio calculation could
      // yield a size that is too small) and bound it by MaxNewSize above.
      // Ergonomics plays here by previously calculating the desired
      // NewSize and MaxNewSize.
!     _max_young_size = MIN2(MAX2(_max_young_size, _initial_young_size), MaxNewSize);
    }
  
    // Given the maximum young size, determine the initial and
    // minimum young sizes.
  
--- 455,465 ----
      // Bound the maximum size by NewSize below (since it historically
      // would have been NewSize and because the NewRatio calculation could
      // yield a size that is too small) and bound it by MaxNewSize above.
      // Ergonomics plays here by previously calculating the desired
      // NewSize and MaxNewSize.
!     _max_young_size = MIN2(MAX2(_max_young_size, _initial_young_size), (size_t)MaxNewSize);
    }
  
    // Given the maximum young size, determine the initial and
    // minimum young sizes.
  
*** 485,495 ****
        // For the case where NewSize is not set on the command line, use
        // NewRatio to size the initial generation size. Use the current
        // NewSize as the floor, because if NewRatio is overly large, the resulting
        // size can be too small.
        _initial_young_size =
!         MIN2(_max_young_size, MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), NewSize));
      }
    }
  
    if (PrintGCDetails && Verbose) {
      gclog_or_tty->print_cr("1: Minimum young " SIZE_FORMAT "  Initial young "
--- 485,495 ----
        // For the case where NewSize is not set on the command line, use
        // NewRatio to size the initial generation size. Use the current
        // NewSize as the floor, because if NewRatio is overly large, the resulting
        // size can be too small.
        _initial_young_size =
!         MIN2(_max_young_size, MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), (size_t)NewSize));
      }
    }
  
    if (PrintGCDetails && Verbose) {
      gclog_or_tty->print_cr("1: Minimum young " SIZE_FORMAT "  Initial young "