Re: [squid-users] Max throughput of CARP Proxy

FWIW, I've seen Squid running at 12K req/sec (very small responses, 100% hits from memory). Higher using the multiple instance perl script (it scales reasonably linearly).

For a pure proxy (no caching), I'd estimate you could do about 5K req/sec for small responses on modern hardware, based on tests I've done previously. Again, that's one core.

Regarding TCP tuning on Linux, see:
  http://fasterdata.es.net/TCP-tuning/linux.html
  http://www.psc.edu/networking/projects/tcptune/#Linux

Cheers,

On 05/02/2010, at 3:56 AM, Kinkie wrote:

> On Thu, Feb 4, 2010 at 5:52 PM, Markus Meyer <markus.meyer_at_koeln.de> wrote:
>
>> Nice one. I think I can get to testing it next week. But the numbers I
>> get out of it must be handled with care. Since this is a pure test
>> environment. It's like a "best-case" scenario which sadly never will
>> happen in a production environment ;)
>
> It's ok, and the fact will be highlighted when publishing the results.
> It is however common practice of all commercial vendors to use
> pure-lab-environment numbers when pitching their offers, and I find it
> only fair that we match that with numbers of our own. Also, it'll be a
> nice ego-boost for all the Squid community to be able to claim
> impressive numbers - hell, your numbers are impressive already..
>
> Notice: if you implement multi-instance squid, an added boost might
> come from tying each instance to a specific CPU core (on Linux it's
> done via the taskset command)
>
> --
> /kinkie

--
Mark Nottingham       mnot_at_yahoo-inc.com