On Thu, Oct 18, 2012 at 3:09 PM, Leonardo Rochael Almeida <leoroch...@gmail.com> wrote:
Thanks for pitching in with an answer! > Having a single ZEO server handling more than one or two storages is > not usually a good idea. ZEO does not handle each storage in a > separate thread, so you're underusing multiple CPUs if you have them. Nit pick: ZEO handles each client connection and storage in a separate thread. (So 30 storages and 16 clients means 480 threads :) It is Python's GIL that prevents effective use of multiple processors. ZEO goes out if it's way to let I/O C code run concurrently (since I/O isn't subject to the GIL) and I've seen ZEO storage servers use up to 200% CPU on 4-core boxes (2 cores worth, IOW). Jim -- Jim Fulton http://www.linkedin.com/in/jimfulton Jerky is better than bacon! http://zo.pe/Kqm _______________________________________________ For more information about ZODB, see http://zodb.org/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev
