hi David:I want to add my 2 cents to this: if I understood correctly the problem occurs only with authenticated users accessing concurrently the site, isn't it?
if that is true, I will not take a look on plone.app.caching neither Varnish yet, as Matt recommended; it's too early to do that kind of adjustments and your problem seem to be in some other place.
I think the first thing you have to do is follow Holden's advice on finding out where is the bottleneck. with Firebug or YSlow you can find out if the problem is in your server or in some other place:
https://getfirebug.com/ http://developer.yahoo.com/yslow/I would also follow Steve recommendation on checking the LDAP stuff; I have no experience on that and I can't give you more advise on it.
I will want you to tell us the following about your installation: - how many ZEO client instances are you running? - how are they configured? how many threads? how many cache objects? - is your server running out of memory in some way?the most important tool to find out if you have an OS issue is VMStat; take a look on it:
http://www.softpanorama.org/Utilities/vmstat.shtmlI would strongly recommend you to install some monitoring tool like munin and use the latest version of the munin.zope package. this is the only sane way to find out performance bottlenecks:
http://munin-monitoring.org/ http://pypi.python.org/pypi/munin.zope/2.0I use some VMStat graphs combined with the Zope graphs available on munin.zope to find out most performance issues; it's really easy and works most of the time.
some further places you can look: are you using Diazo? do you have many tags on your content?
you will probably need to install collective.stats if everything above fails:
http://pypi.python.org/pypi/collective.stats good day, and good luck! Héctor Velarde
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ Setup mailing list [email protected] https://lists.plone.org/mailman/listinfo/plone-setup
