Percona Playback 0.6 for #MySQL now available
▻http://www.mysqlperformanceblog.com/2013/04/09/percona-playback-0-6-for-mysql-now-available
Percona Playback for MySQL is a tool for replaying the load of one database server to another. Currently it can read queries from MySQL query-log and MySQL tcpdump files and run them on other MySQL server. With Percona Playback you can measure how a server or database upgrade, change in my.cnf or schema change can affect the overall performance of your MySQL database server.
& la même chose pour apache ?