[ZODB-Dev] Practical experience - ZEO-Server & limited size of file descriptors

[Andreas Jung]

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Jim Fulton wrote:
> On Mon, Jul 19, 2010 at 11:11 AM, Andreas Jung <lists at zopyx.com> wrote:
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>> Jim Fulton wrote:
>>> On Mon, Jul 19, 2010 at 9:40 AM, Andreas Gabriel
>>> <gabriel at hrz.uni-marburg.de> wrote:
>>>> Hello,
>>>>
>>>> we are hosting a big ZEO based zope site and encountered a problem with a
>>>> limited size of file descriptors (FDs) of the ZEO server.
>>>>
>>>> Scenario
>>>>
>>>>  36 ZEO clients (each 2 threads)
>>>>  1  ZEO server  (serving 10 storages)
>>> I advise against serving more than one storage per server.
>> Why?
> 
> Because Python programs can't use much more than 1 CPU and multiple
> storage servers in the same process will be slower than in separate
> processes, assuming the machine has multiple cores.
> 
> 

Sure but I am not aware of serious performance problems related to this
reason on large scale installations with heavy read and write operations.

Andreas
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