Benchmark tool for MySQL

I am using Ubuntu Server 8.04 and I will like to do some tunning to my MySQL database, but before I will like to get a descent benchmark tool.

What options do I have?

Thanks.

Manuel.

http://www.mysqlperformanceblog.com/2006/08/18/sysbench-benc hmark-tool/

Mikhail,

Thank you for your help. Do you know if there is a good tutorial where I can learn the basics of MySQL tuning?

Thanks,

Manuel.