hi! yesterday, i have test-driven zope on a dual-pentium smp-machine running linux 2.2 and i was very disappointed by the results. the zserver threads are running on both cpu's but it seems to scale really, really badly. i have only done some very cheap benchmarking but it seems that a single cpu is faster than 2 cpu's. but as i said, this is not proper benchmarking (yet). i wanted to ask if someone has already tried zope on more than 1 cpu and/or could point me to a direction where i could find out more about this subject? cheers! thilo -- thilo.mezger@innominate.de innominate AG networking people fon: +49-30-308806-0 fax: -77 web: http://innominate.de pgp: /pgp/tm
Thilo Mezger wrote:
yesterday, i have test-driven zope on a dual-pentium smp-machine running linux 2.2 and i was very disappointed by the results. the zserver threads are running on both cpu's but it seems to scale really, really badly. i have only done some very cheap benchmarking but it seems that a single cpu is faster than 2 cpu's.
Python has an interpreter lock that can really slow things down on multiprocessor computers, or so I've heard. ZEO will solve this problem by letting you run two instances of Zope on the same machine - check out the ZEO Wiki on zope.org. -- Itamar S.T. itamar@maxnm.com
Thilo Mezger:
hi!
Howdy.
yesterday, i have test-driven zope on a dual-pentium smp-machine running linux 2.2 and i was very disappointed by the results. the zserver threads are running on both cpu's but it seems to scale really, really badly. i have only done some very cheap benchmarking but it seems that a single cpu is faster than 2 cpu's.
but as i said, this is not proper benchmarking (yet). i wanted to ask if someone has already tried zope on more than 1 cpu and/or could point me to a direction where i could find out more about this subject?
I have our intranet running off a dual Xenon 350Mhz running 2.2.12-20smp and things are terrific. I haven't ran any comparisons either, but speed isn't an issue.
cheers! thilo
-- thilo.mezger@innominate.de innominate AG networking people fon: +49-30-308806-0 fax: -77 web: http://innominate.de pgp: /pgp/tm
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