Re: [squid-users] Performance with DeLL/XEON

On Sat, 7 Jun 2003 macaco@ns1.twi.com.br wrote:

> The hardware we use exclusively for proxy-cache is:
> DeLL Power Edge 1400 XEON 1.6 (Hyper Threading, so the kernel is compiled
> SMP)

Squid generally have little or no use of SMP..

> Seagate 10K rpm . 30 GB with reiserfs (notail and noatime) for the cache
> 1 GB . RAM

Squid really puts a high load on the drives seek times, and you want more
than one drive for a good Squid performance.

> I compiled SQUID-2.5-STABLE3 using:
> ./configure --enable-linux-netfilter --disable-ident-lookups
> --enable-removal-policies=heap,lru --enable-delay-pools
> --enable-cache-digests --enable-pool --enable-truncate

What is --enable-pool?

> --enable-stacktraces

does not hurt.

> --enable-xmalloc-statistics

this should not be used in production.

> --enable-underscores
> -with-pthreads --enable-storeio=aufs --enable-async-io=128

128 threads is a definite overkill and will make your Squid fall over when
there is too much I/O pending due to the lack of seek kapacity in your
harddrive..

> --enable-kill-parent-hack --enable-time-hack

Are you absolutely sure you want these?? I would not...

> --enable-default-err-language=Portuguese --with-aufs-threads=10

Hmm.. You specify the number of threads twice.. how many do you actually
want?

> cache_access_log /var/squid/logs/access.log
> cache_log none

You want cache.log. Disabling this is just silly unless you are
configuring a Squid with no disks at all..

> cache_dir aufs /squid/cache1 10000 25 256
> cache_dir aufs /squid/cache2 10000 25 256
> cache_dir aufs /squid/cache3 10000 25 256

I assume these are jsut partitions on the same drive. For Squid you should
use one partition per drive, and more than one drive.

> buffered_logs on

does not make a noticeable difference.

Regards
Henrik
Received on Sun Jun 08 2003 - 09:26:26 MDT