view src/share/vm/gc_implementation/g1/g1Log.hpp @ 6629:c9814fadeb38

7041879: G1: introduce stress testing parameter to cause frequent evacuation failures Summary: Add the flags G1EvacuationFailureALot flag (and supporting flags) to force trigger evacuation failures. The support flags control how often to trigger an evacuation failure and during which types of evacuation pause. This functionality is analogous to that of PromotionFailureALot for the other collectors. Reviewed-by: brutisso
author johnc
date Tue, 28 Aug 2012 15:20:08 -0700
parents 5c86f8211d1e
children
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/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP
#define SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP

#include "memory/allocation.hpp"

class G1Log : public AllStatic {
  typedef enum {
    LevelNone,
    LevelFine,
    LevelFiner,
    LevelFinest
  } LogLevel;

  static LogLevel _level;

 public:
  inline static bool fine() {
    return _level >= LevelFine;
  }

  inline static bool finer() {
    return _level >= LevelFiner;
  }

  inline static bool finest() {
    return _level == LevelFinest;
  }

  static void init();
};

#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP