jdk8-mips64-public/hotspot: src/share/vm/memory/metaspaceCounters.hpp@1a8fb39bdbc4

8014659: NPG: performance counters for compressed klass space
Reviewed-by: mgerdin, coleenp, hseigel, jmasa, ctornqvi

     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  */

    25 #ifndef SHARE_VM_MEMORY_METASPACECOUNTERS_HPP

    26 #define SHARE_VM_MEMORY_METASPACECOUNTERS_HPP

    28 #include "memory/metaspace.hpp"

    30 class MetaspacePerfCounters;

    32 class MetaspaceCounters: public AllStatic {

    33   static MetaspacePerfCounters* _perf_counters;

    34   static size_t calculate_capacity();

    36  public:

    37   static void initialize_performance_counters();

    38   static void update_performance_counters();

    39 };

    41 class CompressedClassSpaceCounters: public AllStatic {

    42   static MetaspacePerfCounters* _perf_counters;

    43   static size_t calculate_capacity();

    44   static const Metaspace::MetadataType _class_type = Metaspace::ClassType;

    46  public:

    47   static void initialize_performance_counters();

    48   static void update_performance_counters();

    49 };

    51 #endif // SHARE_VM_MEMORY_METASPACECOUNTERS_HPP

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