[Zope] Re: CPU architecture and Zope

[Tres Seaver]

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Jonathan Cyr wrote:
> Just reading along...
> 
> At the OS view, would dual cores balance the Linux overhead on one CPU
> and python/zope on the other, based on resources required.
> In other words, would the second core allow python to go faster, not
> having to deal with the various OS and distro tools (apache, squid,
> pound, mailman, etc.)  overhead items.  Does the mechanism governing
> multiple cores separate/allocate processes by resources needed?  ... and
> does a python/zope process get evaluated as a "heavyweight" process,
> maybe getting allocated the lion's share of a single core.
> 
> It seems that the whole world of  multiple cores CPUs will be upon us
> very quickly now.  The ZEO Server on one, ZEO Client on the other is a
> good answer.  Just wondering if there are any other advantages of python
> being the way it is, in the mix.
> 
> Great discussion for me, thanks,

The general thumb rule is "one appserver process per CPU";  running the
storage server on the same machine should't increase the CPU load
significantly (the storage server is I/O bound, not CPU bound).



Tres.
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Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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