oprofile is a Linux tool for kernel profiling. Regarding the original issue with high load, it's worth noting that USER CPU usage is also very high and corresponding to the SYS usage. I think that simply the web application you're using is not optimised enough, or you just have a lot of traffic. Marcin -- +---------------------------------------+ | -o) http://wanted.eu.org/ | /\\ Message void if penguin violated + _\_V Don't mess with the penguin