Sometime you confuse what to do to make a better performance of your MySQL databases.
With MySQLTuner you can get a brief suggestion on how to tune in MySQL server.
MySQLTuner is a script written in Perl that allows you to review a MySQL installation quickly and make adjustments to increase performance and stability.
You can download the script at http://mysqltuner.com.
Here are some screenshot MySQLTuner result.
