Re: [squid-users] Architecture

Amos Jeffries wrote:
> Ronan Lucio wrote:
>> It really seems to be a better choice.
>> Do you have any idea about how many page hit would handle one squid
>> servers?
>> Thinking about a Dual QuadCore 4Gb RAM serving only small files (less
>> than 300 Kb each).
>
> Adrian has mapped Squid 2.7 as far as 800-850 req/sec. Squid-3 is
> untested but expected to be at minimum 500 req/sec (2.5 was capable of
> this around the time of the Squid-3 branch).
> NP: that is on single-threaded machines.
>
> We have confirmed data from one Squid-2.7 install doing 2.7K req/sec
> on high-end quad-core hardware a few years back and unconfirmed
> reports of another deployment (unknown version) topping 5K req/sec 1-2
> years ago.
>
> Wikimedia are the poster deployment for CARP deployment to around ~200
> Squid last I heard and push dozens of TB per day (their network
> diagrams show 3 load balancing Squid, I'm not sure if thats right
> though). So even if one Squid can't handle it the model scales
> enormously.
> Their case-study has graphs from back when it was 50 Squid show 560+
> req/sec ...
> http://www.squid-cache.org/Library/wikimedia.dyn
>
>
> Chris Robertson had some numbers a while back, he may chime in with
> something more accurate :)

I'm running a strictly forward proxy setup, which puts an entirely
different load on the system. It's also a pretty low load (peaks of 160
req/sec at 25mbit/sec).

Chris
Received on Sat Jun 27 2009 - 01:09:46 MDT