Contains tests that measure the relative performance of Ant's directory scanner. This is mainly used to compare performance changes between Ant releases. Before you run any tests, you need to set up the environment by running the setup or big-setup target. Note that this will create a directory tree holding 10000 (setup) or 100000 (big-setup) directories and about 22000 (setup) or 222000 (big-setup) files. The setup/big-setup targets require Ant 1.7.0 or later. It may be a good idea to use the -logfile option. Consider taking a nap if you run Ant 1.6.x or 1.7.0 against a "big" setup. If Ant 1.6.x is detected or the property ant16 has been specified on the command line then the tests will use the pathconvert task instead of resourcecount. So if you want to compare Ant 1.6.x with later versions of you must specify ant16 on the command line during your 1.[78].x tests. The tests will use the default settings of followsymlinks="true" and casesensitive="true" unless those values get overwritten by the properties symlinks and/or casesensitive on the command line. This is ${ant.version}