Is there still an advantage of using sticky sessions if your zeo server and clients are all on the same machine? I had read this article and (maybe incorrectly) thought that they weren't for me!
http://plone.org/documentation/how-to/sticky-sessions-and-mod_proxy_balancer Steve McMahon wrote: > > Hi Jim, > > The global interpreter lock problem may no longer apply in Solaris > 10.x. When it shows up, it basically makes threading slow. If you > didn't build your own python, you might want to do so, and see if it > improves the situation. > > I think the general opinion for best utilization of multiple cores is > to run lots of ZEO clients with few threads. Use large object caches. > If you've got lots of logged in users, make sure you're using sticky > sessions with your load balancer. Make sure you're not swapping. > >> on a restart >> of Plone, it can take over 30 seconds before a page is displayed. > > Is that the first page? If so, it's not unusual. If subsequent pages > are that slow, something is seriously wrong. > > Steve > > On Fri, Jan 23, 2009 at 8:47 AM, JimL <[email protected]> wrote: >> >> Hi Steve, >> >> we seem to be experiencing speed issues on our quad core Sunfire T2000 >> box. >> Doing a lot of reading I've come across lots of mention of Python >> problems >> with the Global Interpreter Lock, especially when coupled with the way >> Solaris handles multi-threading : e.g. >> http://www.zope.org/Members/glpb/solaris >> >> Despite setting up Zeo, with 4 clients (one per core), we are still >> finding >> Plone extremely slow. >> >> I've load balanced with Pound and then cached with Squid, and after >> caching, >> page speed isn't too bad (e.g. http://www.ibme.ox.ac.uk), but on a >> restart >> of Plone, it can take over 30 seconds before a page is displayed. >> >> Also connecting directly to port 8080 (for the first of our 4 clients) >> Plone >> seems to crawl. >> >> Hence I'm wondering if Linux is going to show an improvement. >> >> Cheers, Jim >> >> Steve McMahon wrote: >>> >>> >>> I administer BSD, Linux and Solaris servers running Plone on >>> forward-facing sites. With well-configured systems, the performance >>> difference is negligible. Not anywhere enough to override the value of >>> experience on a platform. >>> >>> >> >> -- >> View this message in context: >> http://n2.nabble.com/What-sort-of-hardware-specs-are-people-running--tp2202890p2204292.html >> Sent from the Installation, Setup, Upgrades mailing list archive at >> Nabble.com. >> >> >> _______________________________________________ >> Setup mailing list >> [email protected] >> http://lists.plone.org/mailman/listinfo/setup >> > > > > -- > > Steve McMahon > Reid-McMahon, LLC > [email protected] > [email protected] > > _______________________________________________ > Setup mailing list > [email protected] > http://lists.plone.org/mailman/listinfo/setup > > -- View this message in context: http://n2.nabble.com/What-sort-of-hardware-specs-are-people-running--tp2202890p2204572.html Sent from the Installation, Setup, Upgrades mailing list archive at Nabble.com. _______________________________________________ Setup mailing list [email protected] http://lists.plone.org/mailman/listinfo/setup
