I would like to know how much RAM each site is using on the webserver. About 20 sites are running on this CentOS 5.5 server, with PLESK 9.5.2, Apache, Mysql 5.1 and WHMCS last version.
You will be in charge of installing a lightweight and secure graphical tool for this performance Analysis. I'm interested in monitoring life memory usage per website. CPU usage per website is also interesting, but less important. Thanks. Bernard.