Re: 17k selects/s with 5hit/s ?

The timer on Alpha based systems is about 1024 Hz and Linux on Intel has
100Hz. Aparently something in squid is based on that. So you have 10 times
as much loops on an alpha.

Whatever it is, it should take into account the scheduling frequency. I
haven't got the faintest idea what it is in squid but I'm sure this must
be it as it clearly shows in your figures :-)

Dirk Moerenhout ///// System Administrator ///// Planet Internet NV

On Tue, 29 Jun 1999, Pawel Pierscionek wrote:

> Hi,
>
> I'm experiencing heavy loan on my new machine wich SQUID eating up 50%
> of Alpha 21264 500Mhz on OSF4.0f and 1GB RAM.
>
> Linux (PII350) with the same squid configuration and net load
> (5hit/sec,300kb/s) has 1700 calls to select loops per second eating
> only 12% of CPU while my alpha suffers from 17000 select calls per
> second !
>
> Squid doesn't suffer from any kind of resource limits.
> But the kernel's network settings hadn't been tweaked up yet.
>
> Is it normal ?
>
> I've configured squid to eat 200MB of extra memory and to store
> objects on two 9GB drives.
>
> I'll try to compile it with GCC instead of DEC CC but I don't expect
> it will do much good.
>
> Squid is the only active service on my system and I have something
> like 2(!) diskops per sec.
>
> TIA,
> Pawel Pierscionek
>
>
Received on Tue Jun 29 1999 - 15:00:16 MDT