lucene/contrib/benchmark/conf/standard-config.xml

<?xml version="1.0"?>
<!--
Configuration file for use with Driver(InputSource) constructor.  Uses Digester to load.

Class is the fully qualified name of the Benchmarker to load.  It must have a no argument constructor.  All attributes invoke the appropriate bean accessor on the Benchmarker -->
<benchmark >
    <benchmarker class="org.apache.lucene.benchmark.standard.StandardBenchmarker"/>
    <!-- Attributes map to bean getters/setters on the specific instantiation of StandardOptions.  So, if you implement your own options, then you can
     initialize automatically by setting the bean attributes here.

     All attributes are optional.

     runCount - The number of times to run the benchmark successively.  Default: 5
     logStep - When indexing, how often to output how many documents have been processed.  Default: 1000
     scaleUp - How many times to add the same documents. Default: 5
     maximumDocumentsToIndex - The number of documents to index at a time (multiply by the scaleUp factor for the total number of documents indexed).  Default is Integer.MAX_VALUE
     -->
    <options class="org.apache.lucene.benchmark.standard.StandardOptions" runCount="5" logStep="1000" scaleUp="5"/>
</benchmark>