Re: [squid-users] How well does squid perform under stress?

ons 2007-04-04 klockan 10:29 -0500 skrev Ben Spencer:

> We have a squid appliance which is very heavy on CPU (which is
> expected). My question isn't really how can I tune it or why is it using
> so much CPU, but rather, how well does squid perform on a busy (CPU
> wise) box?

It performs quite well until severely overloaded. When severely
overloaded there is probably still situations where things may spiral
out due to too large queues building up. Especially if your Squid is
compiled with way too many filedescriptors.

> Another question is: once the system is pushed to a maximum (or beyond),
> are things just slow or should abnormal behavior be expected?

Unless there is some serious error, slowness.

Exception: If you use helpers of some kind and these helpers get too
starved of CPU time compared to then Squid may abort when the request
queue to the helper grows too large.

Regards
Henrik