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 
  25 #include "precompiled.hpp"
  26 #include "memory/metaspace/counter.hpp"
  27 #include "memory/metaspace/runningCounters.hpp"
  28 #include "memory/metaspace/virtualSpaceList.hpp"
  29 #include "memory/metaspace/chunkManager.hpp"
  30 
  31 namespace metaspace {
  32 
  33 // Return reserved size, in words, for Metaspace
  34 size_t RunningCounters::reserved_words() {
  35   return reserved_words_class() + reserved_words_nonclass();
  36 }
  37 
  38 size_t RunningCounters::reserved_words_class() {
  39   VirtualSpaceList* vs = VirtualSpaceList::vslist_class();
  40   return vs != NULL ? vs->reserved_words() : 0;
  41 }
  42 
  43 size_t RunningCounters::reserved_words_nonclass() {
  44   return VirtualSpaceList::vslist_nonclass()->reserved_words();
  45 }
  46 
  47 // Return total committed size, in words, for Metaspace
  48 size_t RunningCounters::committed_words() {
  49   return committed_words_class() + committed_words_nonclass();
  50 }
  51 
  52 size_t RunningCounters::committed_words_class() {
  53   VirtualSpaceList* vs = VirtualSpaceList::vslist_class();
  54   return vs != NULL ? vs->committed_words() : 0;
  55 }
  56 
  57 size_t RunningCounters::committed_words_nonclass() {
  58   return VirtualSpaceList::vslist_nonclass()->committed_words();
  59 }
  60 
  61 
  62 // ---- used chunks -----
  63 
  64 // Returns size, in words, used for metadata.
  65 size_t RunningCounters::used_words() {
  66   return used_words_class() + used_words_nonclass();
  67 }
  68 
  69 size_t RunningCounters::used_words_class() {
  70   return _used_class.get();
  71 }
  72 
  73 size_t RunningCounters::used_words_nonclass() {
  74   return _used_nonclass.get();
  75 }
  76 
  77 // ---- free chunks -----
  78 
  79 // Returns size, in words, of all chunks in all freelists.
  80 size_t RunningCounters::free_chunks_words() {
  81   return free_chunks_words_class() + free_chunks_words_nonclass();
  82 }
  83 
  84 size_t RunningCounters::free_chunks_words_class() {
  85   ChunkManager* cm = ChunkManager::chunkmanager_class();
  86   return cm != NULL ? cm->total_word_size() : 0;
  87 }
  88 
  89 size_t RunningCounters::free_chunks_words_nonclass() {
  90   return ChunkManager::chunkmanager_nonclass()->total_word_size();
  91 }
  92 
  93 } // namespace metaspace
  94 
  95