[Zope] Improving CMS Performance: Help Needed

[Jens Vagelpohl]

IMHO great performance must be "designed into" the application and 
considered from very early on in the design stage. i have a feeling no one 
really thought about performance when you guys wrote that CMS system...  
it will be hard to slap something on top (other than "more hardware") that 
will give you the performance you want.

jens

On Thursday, July 25, 2002, at 09:02 , Klaus Herrmann wrote:

> Hi Folks!
>
> We have developed a nice CMS ontop of Zope, that dynamically renders
> pages (with DTML and a python Product) out of special Components (e.g.
> text blocks and headlines). The only bad thing is: The Performance
> really sucks.
>
> I experienced that Zope is able to serve ~50 REQUESTs per Second on a
> small static page (where apache does 1500-2200), but under heavy DTML-
> and Python usage, Zope will only be able to serve ~ 0,5 - 5 pages per
> second (depending on how big the page is and how complicated its python
> logic).
>
> Well, i am aware of the fact that cache managers are able to
> dramatically improve performance, but in most cases, our content and
> pages are just too dynamic for the application to work w/ enabled cache
> (RAM or HTTP or ProxyPass).
>
> Does anyone know some hints how to get more performance out of zope? Any
> common Python / DTML routines that cost way too much time? Any
> experiances in improving Zope's speed?
>
> System is Zope-2.5.1 on FreeBSD-4-Stable and Python 2.1.3.
> Hardware: Tested on Xeon / 1,26GHz / 512MB RAM and Athlon / 850MHz /
> 256MB RAM
>
> Thanks in advance!
>
> regards,
> 	Klaus
>
>