[Zope] cpu performance zope/zeo

[John Snowdon]

We're using dual cpu (not dual core) 64bit AMD Opteron (Sun Fire V20's)
based systems and are VERY impressed with their performance; our python
benchmarks show dual Opteron 250 systems outperforming dual twin-core
Xeon 3.6GHz with the same code. Almost everything we run is ZEO based
and hosted over 2 or more boxes (7 or 8 in the case of our biggest
system). We couldn't be happier with the combination of Opteron and ZEO.

We benchmarked 64bit Opteron, 64Bit UltraSparc III, 32bit Xeon and 64bit
Xeon for our applications. Opteron trounces them all in day to day use.

Sun's dual core Opteron offerings are coming out VERY soon. So that will
make the V20 a 4-way system, and the V40 an 8-way system!

As a guide, our standard spec for a ZEO hosted Zope server is 2 x
Opteron 250/252, 4Gb, dual Gbit NIC, dual 10krpm SCSI drives in RAID1
(the main ZEO backend server is a similar spec but utilising a big SATA
array in RAID50). We've found we can host 6 or so big sites (resident
seize of 250mb or more) on each node and still get excellent performance
by duplicating across several nodes. We have ZEO served sessions and use
Pound to load balance across the pool without any stickyness - meaning
on each page access users will (potentially) go to a new box - resulting
in much finer grained balancing and use of resources.

Performance is *excellent*.

-John

 John Snowdon - IT Support Specialist
-==========================================-
 School of Medical Education Development 
 Faculty of Medical Sciences Computing
 University of Newcastle

>-----Original Message-----
>From: zope-bounces at zope.org [mailto:zope-bounces at zope.org] On 
>Behalf Of Srdan Zagorac
>Sent: 26 July 2005 06:27
>To: zope at zope.org
>Subject: [Zope] cpu performance zope/zeo
>
>
>Hi
>
>I need  a suggestion / advice regarding the  CPU options for the best  
>ZOPE and ZEO performance. eg 32 vs 64 bits architecture,  
>single vs dual 
>core, hyper threading.
>Is there any bechmarks already posted on the web??
>
>Thanks
>
>-- 
>-------------------------------------
>Srdan Zagorac
>Software Developer / Webmaster / DB Administrator
>Bioengineering Institute
>University of Auckland 
>email: srdan.zagorac at auckland.ac.nz
>url: http://www.bioeng.auckland.ac.nz
>ph: +64 9 373 7599 ext. 82046
>fax: +64 9 367 7157
>-------------------------------------
>
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