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comparison src/share/vm/memory/metaspaceCounters.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
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children 79f492f184d0
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6724:36d1d483d5d6 6725:da91efe96a93
1 /*
2 * Copyright (c) 2012 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 #ifndef SHARE_VM_MEMORY_METASPACECOUNTERS_HPP
26 #define SHARE_VM_MEMORY_METASPACECOUNTERS_HPP
27
28 #include "runtime/perfData.hpp"
29
30 class MetaspaceCounters: public CHeapObj<mtClass> {
31 friend class VMStructs;
32 PerfVariable* _current_size;
33 PerfVariable* _capacity;
34 PerfVariable* _used;
35 PerfVariable* _max_capacity;
36 char* _name_space;
37 static MetaspaceCounters* _metaspace_counters;
38 void initialize(size_t min_capacity,
39 size_t max_capacity,
40 size_t curr_capacity,
41 size_t used);
42 public:
43 MetaspaceCounters();
44 ~MetaspaceCounters();
45
46 void update_capacity();
47 void update_used();
48 void update_max_capacity();
49
50 void update_all();
51
52 static void initialize_performance_counters();
53 static void update_performance_counters();
54
55 };
56 #endif // SHARE_VM_MEMORY_METASPACECOUNTERS_HPP