hotspot/src/share/vm/gc_implementation/shared/gcStats.hpp
author trims
Thu, 12 Mar 2009 18:16:36 -0700
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/*
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 * Copyright 2003-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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class GCStats : public CHeapObj {
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 protected:
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  // Avg amount promoted; used for avoiding promotion undo
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  // This class does not update deviations if the sample is zero.
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  AdaptivePaddedNoZeroDevAverage*   _avg_promoted;
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 public:
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  GCStats();
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  enum Name {
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    GCStatsKind,
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    CMSGCStatsKind
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  };
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  virtual Name kind() {
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    return GCStatsKind;
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  }
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  AdaptivePaddedNoZeroDevAverage*  avg_promoted() const { return _avg_promoted; }
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  // Average in bytes
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  size_t average_promoted_in_bytes() const {
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    return (size_t)_avg_promoted->average();
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  }
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  // Padded average in bytes
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  size_t padded_average_promoted_in_bytes() const {
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    return (size_t)_avg_promoted->padded_average();
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  }
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};
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class CMSGCStats : public GCStats {
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 public:
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  CMSGCStats();
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  virtual Name kind() {
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    return CMSGCStatsKind;
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  }
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};