On Mar 26, 2013, at 1:19 PM, Youssef Ghorbal <djo@xxxxxxxxxx> wrote: > Hello, > > We have a Squid 3.1.23 running on a FreeBSD 8.3 (amd64) > The proxy is used to handle web access for ~2500 workstations and in pure proxy/filter (squidGaurd) mode with no cache (all disk caching is disabled) > It's not a tranparent/intercepting proxy, just a plain explicit proxy mode. > > What we see, is that the squid process is using 100% of CPU (userland CPU usage, not kernel) all the time. Even in late night when the whole traffic is very minimalistic. > > What I'm looking for is some advice on how to track down what is causing this CPU misbehaviour. Maybe it's some stupid config option not suitable for this kind of setup, maybe a bug etc. > What would be the tools/methodology that I can use to profile the running process. > > Any help/suggestion would be really appreciated. Forgot to ask, is there any well know squid CPU bound operations I can start to focus on in order to narrow down the problem ? ACL checks ? Peer selection ? Youssef
