RE: [squid-users] Current Performance?

So it would be correct to say that this limitation could be overcome by
multiple squid boxes and a load balancer? I understand that that's a
workaround, but if an organization can afford to have 10Mbit or greater
bandwidth, they can afford an extra $2-3k box and a layer 3/4 switch/load
balancer.

-Aaron

> -----Original Message-----
> From: Joe Cooper [mailto:joe@swelltech.com]
> Sent: Wednesday, December 05, 2001 8:26 AM
> To: Dennis
> Cc: squid-users@squid-cache.org
> Subject: Re: [squid-users] Current Performance?
>
>
> Dennis wrote:
>
> > I've read a lot about the cache-off,and Im interested in the base
> > parameters affecting performance, as there seems to be a
> wide disparity
> > in performance, and a lot of the numbers I've seen are
> fairly old. What
> > is the current performance level..and what is the
> bottleneck keeping
> > squid from reaching the high end?
>
>
> A perusal of the squid-dev archives linked from the
> squid-cache homepage
> will give you some good ideas about the current performance (not much
> different than at previous cacheoffs, though a little faster in 2.5),
> and where the bottlenecks are and what folks are doing about it.
>
>
> > Also, Freebsd 4.4 is substantially faster than 4.1 (at least at the
> > networking level)....are there any numbers on squid with P4
> and rambus
> > memory on FBSD 4.4? What is the impact of faster ram?
>
> Network I/O is not a bottleneck in Squid, and generally neither is
> memory I/O (though it does have some impact, it is small). The
> bottlenecks in Squid are well-known and aren't easily erased
> by hardware
> changes--pure performance of hardware is certainly reflected
> in Squid's
> performance, a faster box runs a faster Squid. But simply shifting
> performance numbers around (i.e. super fast RAM, but with the
> same old
> disk subsystem) is going to have marginal impact.
>
> A well-tuned Squid performs pretty darn well on low to mid-range
> networks (1.5-15Mbits), but begins to require a lot more
> effort to tweak
> additional throughput out of it beyond that point.
>
> I suggest reading up on this subject on the squid-dev list.
> All of your
> questions will be answered in quite good detail, I think.
> --
> Joe Cooper <joe@swelltech.com>
> http://www.swelltech.com
> Web Caching Appliances and Support
>
Received on Wed Dec 05 2001 - 09:27:37 MST