Re: [squid-users] Performance question

On 27.10 11:02, Joost de Heer wrote:
> Usually my proxy (Squid 2.5 STABLE10 on RH Linux) performs quite well, but
> occasionally I see a drop in the number of successful requests (it's
> usually around 200/s, but drops to as low as 100/s). I've written a small
> performance test which uses curl to measure time_total, time_connect and
> speed_download. The script runs on the same machine. Most of the time, the
> connect time is close to 0 ms, but occasionally I see a spike, largest
> I've seen is around 6 seconds(!) connect time. time_total - time_connect
> is reasonably constant (somewhere between 600 and 800 ms)
>
> Does anyone have an idea where I could start to find a cause of this
> strange behaviour? Kernel settings? TCP settings? Squid settings?

What do the squid/kernel logs say?
Doesn't squid wipe the cache at that time?
isn't there some kind of flood onto your server?
(what does netstat say at such time?)

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