Benchmark:

1. Make sure ab (apache-benchmark) is available
2. Copy benchmark to your htdocs 
3. run.bat (Windows only) or run.sh (Unix)

ORM Benchmark (Phalcon and Yii framework):

1. Make sure ab (apache-benchmark) is available
2. Copy benchmark to your htdocs 
3. Configure your database (make sure you have 'benchmark' db on 127.0.0.1, with contents of schema.sql)
3. run-orm.bat (Windows only) or run-orm.sh (Unix)

Edit:
This version of YAF was used http://yafphp.googlecode.com/files/php_yaf-2.1.17-x86-5.3.13-zts-nodebug.dll

regards,
mailopl