src/share/vm/gc_implementation/g1/concurrentMark.cpp

rev 7854 : 8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
Summary: Allow partial use of large pages for auxiliary data structures in G1.
Reviewed-by:

*** 1,7 ****
  /*
!  * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 113,123 ****
  void CMBitMapRO::print_on_error(outputStream* st, const char* prefix) const {
    _bm.print_on_error(st, prefix);
  }
  
  size_t CMBitMap::compute_size(size_t heap_size) {
!   return heap_size / mark_distance();
  }
  
  size_t CMBitMap::mark_distance() {
    return MinObjAlignmentInBytes * BitsPerByte;
  }
--- 113,123 ----
  void CMBitMapRO::print_on_error(outputStream* st, const char* prefix) const {
    _bm.print_on_error(st, prefix);
  }
  
  size_t CMBitMap::compute_size(size_t heap_size) {
!   return ReservedSpace::allocation_align_size_up(heap_size / mark_distance());
  }
  
  size_t CMBitMap::mark_distance() {
    return MinObjAlignmentInBytes * BitsPerByte;
  }