Hi guys, We are currently using LSWS to power a number of Wordpress installations on a 2GB VPS slice. The VPS slice is dedicated for serving LSWS requests (so MySQL is served remotely), LSWS is the latest (4.0.10 Enterprise), PHP is 5.2.10 with APC and Memcache enabled. The Wordpress installations all have W3 Total Cache enabled too. However, we are still seeing relatively high server load. From 'top', it appears that lsphp5 processes are using quite a bit of CPU power. Below are some of the configuration parameters: I've tried a few different tweaks and nothing I did seem to bring the CPU usage down. :| It is also unlikely the Wordpress installations are causing the issue, because these sites were hosted elsewhere using Apache + mod_php before, and the CPU usage was fine. Some interesting stuff from the server log: And the requests/second graph (during this time, server load averages at around 0.8 to 1.3): Any suggestions?