jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcPolicyCounters.hpp@f90c822e73f8

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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 2002, 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_GC_IMPLEMENTATION_SHARED_GCPOLICYCOUNTERS_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCPOLICYCOUNTERS_HPP

    28 #include "runtime/perfData.hpp"

    30 // GCPolicyCounters is a holder class for performance counters

    31 // that track a generation

    33 class GCPolicyCounters: public CHeapObj<mtGC> {

    34   friend class VMStructs;

    36   private:

    38     // Constant PerfData types don't need to retain a reference.

    39     // However, it's a good idea to document them here.

    40     // PerfStringConstant*     _name;

    41     // PerfStringConstant*     _collector_size;

    42     // PerfStringConstant*     _generation_size;

    44     PerfVariable*     _tenuring_threshold;

    45     PerfVariable*     _desired_survivor_size;

    47     const char* _name_space;

    49  public:

    51   enum Name {

    52     NONE,

    53     GCPolicyCountersKind,

    54     GCAdaptivePolicyCountersKind,

    55     PSGCAdaptivePolicyCountersKind,

    56     CMSGCAdaptivePolicyCountersKind

    57   };

    59   GCPolicyCounters(const char* name, int collectors, int generations);

    61     inline PerfVariable* tenuring_threshold() const  {

    62       return _tenuring_threshold;

    63     }

    65     inline PerfVariable* desired_survivor_size() const  {

    66       return _desired_survivor_size;

    67     }

    69     const char* name_space() const { return _name_space; }

    71     virtual void update_counters() {}

    73     virtual GCPolicyCounters::Name kind() const {

    74       return GCPolicyCounters::GCPolicyCountersKind;

    75     }

    76 };

    78 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCPOLICYCOUNTERS_HPP

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