[Zope] Re: Zope vs Plone: performance issues!

[Dario Lopez-Kästen]

Subject: Re: Zope vs Plone: performance issues!
Alexander Limi wrote:
> 
> 
> On Wed, 25 Jan 2006 00:11:04 -0800, Dario Lopez-Kästen  
> <dario-tTo+xxYJ+kmv1QaEFLkzfg at public.gmane.org> wrote:
> 
>> Start by checking the ZODB cache numbers in the zope-conf file (too  
>> start simple). IIRC, the default is 5000 objects. Increase that to, 
>> say  50.000 or so (you mention that you have a busy site).
> 
> 
> Sorry, but this is not good advice. 5000 objects in the cache is 
> normally  plenty, and you should look into caching the front-end before 
> you even  consider this. 50K objects in the cache will eat *a lot* of 
> memory, and  most likely cause swapping.
> 
> Cache properly with Apache or Squid in front first, then investigate 
> the  more complex settings.
> 

Does this apply for personanlsied content as well? Remember, his site is
  an intranet.

We at least, have had good results by increasing the internal ZODB
caching. I fail to see how squid could help us with a site that is
mostly non-static. It would be nicer of course if we could use some
other kind of caching, so I am always open to suggestions :-)

/dario

-- 
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Dario Lopez-Kästen, IT Systems & Services Chalmers University of Tech.
Lyrics applied to programming & application design:
"emancipate yourself from mental slavery" - redemption song, b. marley