1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 #include "precompiled.hpp"
  25 
  26 #include "memory/metaspace/smallBlocks.hpp"
  27 #include "utilities/globalDefinitions.hpp"
  28 #include "utilities/ostream.hpp"
  29 
  30 namespace metaspace {
  31 namespace internals {
  32 
  33 void SmallBlocks::print_on(outputStream* st) const {
  34   st->print_cr("SmallBlocks:");
  35   for (uint i = _small_block_min_size; i < _small_block_max_size; i++) {
  36     uint k = i - _small_block_min_size;
  37     st->print_cr("small_lists size " SIZE_FORMAT " count " SIZE_FORMAT, _small_lists[k].size(), _small_lists[k].count());
  38   }
  39 }
  40 
  41 
  42 // Returns the total size, in words, of all blocks, across all block sizes.
  43 size_t SmallBlocks::total_size() const {
  44   size_t result = 0;
  45   for (uint i = _small_block_min_size; i < _small_block_max_size; i++) {
  46     uint k = i - _small_block_min_size;
  47     result = result + _small_lists[k].count() * _small_lists[k].size();
  48   }
  49   return result;
  50 }
  51 
  52 // Returns the total number of all blocks across all block sizes.
  53 uintx SmallBlocks::total_num_blocks() const {
  54   uintx result = 0;
  55   for (uint i = _small_block_min_size; i < _small_block_max_size; i++) {
  56     uint k = i - _small_block_min_size;
  57     result = result + _small_lists[k].count();
  58   }
  59   return result;
  60 }
  61 
  62 } // namespace metaspace
  63 } // namespace internals