src/hotspot/share/gc/shared/collectorCounters.hpp
author stefank
Thu, 22 Feb 2018 18:36:32 +0100
changeset 49048 4e8c86b75428
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child 53244 9807daeb47c4
permissions -rw-r--r--
8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap Reviewed-by: pliden, sjohanss
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/*
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 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP
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#define SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP
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#include "runtime/perfData.hpp"
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// CollectorCounters is a holder class for performance counters
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// that track a collector
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class CollectorCounters: public CHeapObj<mtGC> {
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  friend class VMStructs;
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  private:
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    PerfCounter*      _invocations;
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    PerfCounter*      _time;
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    PerfVariable*     _last_entry_time;
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    PerfVariable*     _last_exit_time;
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    // Constant PerfData types don't need to retain a reference.
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    // However, it's a good idea to document them here.
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    // PerfStringConstant*     _name;
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    char*             _name_space;
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  public:
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    CollectorCounters(const char* name, int ordinal);
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    ~CollectorCounters();
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    inline PerfCounter* invocation_counter() const  { return _invocations; }
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    inline PerfCounter* time_counter() const        { return _time; }
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    inline PerfVariable* last_entry_counter() const { return _last_entry_time; }
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    inline PerfVariable* last_exit_counter() const  { return _last_exit_time; }
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    const char* name_space() const                  { return _name_space; }
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};
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class TraceCollectorStats: public PerfTraceTimedEvent {
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  protected:
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    CollectorCounters* _c;
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  public:
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    TraceCollectorStats(CollectorCounters* c);
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    ~TraceCollectorStats();
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};
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#endif // SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP