[ZODB-Dev] Max requests for ZEO Server

[sean.upton@uniontrib.com]

On the other hand, if you have decent dual-processor hardware, why no=
t take
advantage of an extra CPU to take care of hardware interrupts for I/O
intensive things like GB Ethernet and RAID controllers for serving an=
d
storing your underlying storage, and bind your ZSS process to one of =
the
CPUs via process/CPU affinity?  Don't know what this would yield, but=
 I
assume it would help, at least a bit?  Whether or not this justifies =
the
expense of DP hardware is likely hard to tell.

Sean

-----Original Message-----
=46rom: Dario Lopez-K=E4sten [mailto:dario@ita.chalmers.se]
Sent: Monday, January 27, 2003 1:45 PM
To: zodb-dev@zope.org
Subject: Re: [ZODB-Dev] Max requests for ZEO Server


hi,

on a related note, I am would like to know if there is any point in
deploying the ZEO server on a multiCPU machine, considering python's =
Global
Interpreter Lock. I suspect not, since I would have to bind the ZEO t=
o one
processor to avoid the problems with the GIL in multiCPU circumstance=
s,
right?

Thank you.

/dario

----- Original Message -----
=46rom: "Brian R Brinegar" <brinegar@ecn.purdue.edu>
To: <zodb-dev@zope.org>
Sent: Monday, January 27, 2003 7:26 PM
Subject: [ZODB-Dev] Max requests for ZEO Server


> We have a ZEO server running Zope-2.5.1 and ZEO 1. I am interested =
to know
> the number of requests a ZEO Server can handle simultaniously. It i=
s my
> understanding that FileStorage uses one big file with one file poin=
ter. I
> would guess that the ZEO Server can only process one request for an=
 object
> at a time. Is this true? If so how are the requests queued up for
> processing? How does the overhead for reads vs. writes compare? Any=
 rough
> idea how many objects a ZEO Server can serve per second (on a fast
> machine)?
>
> Thanks,
> -Brian Brinegar
>  ECN Purdue University
>  West Lafayette, IN
>
>
> _______________________________________________
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> http://www.zope.org/Wikis/ZODB/
>
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