[Zope] Zope + Apache on Quad Debian machine

[S.Hayles]

You can do something like:

/usr/bin/taskset -c 0 zeo/bin/zeoctl start
/usr/bin/taskset -c 1 zope.a/bin/zopectl start
/usr/bin/taskset -c 2 zope.b/bin/zopectl start
/usr/bin/taskset -c 3 zope.c/bin/zopectl start

You then need to load-balance across the ZOPE instances with (eg Pound or 
Squid).

AFAIK it's only Python-based programs that need binding to a particular 
CPU, so Apache, Pound and Squid are fine without setting any affinity.

Since ZEO is not very CPU intensive, you can share it's CPU with another 
ZOPE instance should you wish.

We're running twin ZOPE instances and ZEO on a dual CPU Debian box, load 
balancing with Pound and caching and URL rewriting with Apache. The 
feeling these days seems to be that load balancing and caching with Squid 
gives better performance.

Steven

Steven Hayles - Computer Systems Developer, sh23 at le.ac.uk
Learning Technology Section, Computer Centre, 
University of Leicester, University Rd, Leicester, LE1 7RH 
Fax (0/+44)116 2525027 WWW <URL:http://www.le.ac.uk/home/sh23>

On Wed, 15 Mar 2006, Hugo Ramos wrote:

> Yellow,
>
> I'm using Zope+Apache on a 4 xeon's/4GB ram machine running Debian.
> I've noticed that the CPU's never go beyond 30% top occupation... but
> on rush hours the site takes too long to load...
>
> I've been reading about process affinity and how it could speed up
> everything by making zope run on 1 CPU, Apache on another and so on...
>
> Has any1 tried this before? Can you point me to some documentation?
> What's your experience? is it true that not doing this the 4 cpu's
> will not be 100% used?
>
>
> Cheers
> --
> Hugo Ramos - ramosh at gmail.com
> http://www.orkut.com/Profile.aspx?uid=10082105466310142690
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