001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.mmtk.utility.options;
014    
015    import static org.mmtk.policy.immix.ImmixConstants.DEFAULT_DEFRAG_FREE_HEADROOM;
016    
017    public class DefragFreeHeadroom extends org.vmutil.options.PagesOption {
018      /**
019       * Create the option.
020       */
021      public DefragFreeHeadroom() {
022        super(Options.set, "Defrag Free Headroom",
023              "Allow the defragmenter this amount of free headroom during defrag. For analysis purposes only!",
024              DEFAULT_DEFRAG_FREE_HEADROOM);
025      }
026    }