On Sat, 2005-03-12 at 22:50, Stefan Neufeind wrote:
> Dear all,
>
> I'm running a squid-proxy (squid 2.5.stable7-1) in reverse-proxy mode in
> front of two webservers. Squid does equal loadbalancing across the
> servers, and answers requests for static pages/images/... itself.
> Because of the site-content squid is able to service about 80%-85% of
> the requests itself. Statistics report about 500 requests/second hitting
> squid, with an output to the internet of about 20mbit/s during peak-times.
[...]
> Does somebody have an idea how I could "debug" the cpu-utilisation of
> "system", and how to lower it? Friends told me to watch out for possible
> buffers that could reduce the number of transfers from
> kernel-to-userspace or so - but I didn't find much.
The figures do not really look too bad.
As for debugging, you could try using opofile (it should be enabled in
Fedora).
Kinkie