[Zope] Re: Zope scalabilty and problems

[Paul Everitt]

Chris has opinions on performance based on his experiences.  Others have 
different viewpoints.  Here is an more empirical treatment of what you 
might expect:

   http://www.ifpeople.net/resources/downloads/PlonePerformance.pdf

--Paul

michael nt milne wrote:
> Hi
> I am setting up sites using Plone and am concerned to read some of the
> comments on it. Is it really that bad performance wise? I'm using
> CMFMember also-why is it 'apalling'?
> 
> On 9/2/05, N.Davis <nd51 at le.ac.uk> wrote:
> 
>>Chris Withers wrote:
>>
>>>Andrew Sawyers wrote:
>>>
>>>
>>>>Did Matt indicate if he was running multiple zeo app servers?  It 
>>>>might help
>>>>to be spreading the load.  1,0000 writes a day is not outrageous....
>>>
>>>
>>>Yes, but he's using Plone, which implies not only all of the CMF 
>>>reindexing overhead, but also all the AT and Plone layers on top. That 
>>>could get even worse if he's gone to town with a workflow tool or is 
>>>using any of the truly appalling Plone addons, such as CMFMember, 
>>>CMFForum, etc...
>>>
>>>cheers,
>>>
>>>Chris
>>>
>>
>>This sounds like the classic abstraction vs performance debate. In the 
>>late 80s some people criticised C++ and OOP versus C for the same reasons.
>>
>>Might it not be better, rather than telling people not to use Plone + 
>>add-ons for this reason, to just push for across the board performance 
>>improvements, which means removing bottlenecks in Plone, Archetypes, 
>>specific Products, as well as the underlying Zope/CMF ? Also some of the 
>>products you are talking about may be somewhat immature and you know 
>>what they say, don't do premature optimisation, do logic first, 
>>performance tune later.
>>
>>What you describe as "appalling" might perhaps be able to be performance 
>>tuned?
>>
>>BTW CPSSkins is another performance hit. Would you care to list the 
>>worst culprits? ;-)
>>
>>Regards
>>Nick
>>
>>
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> 
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