[Setup] Re-post as: "Why Plone 4.2.3 page-loads slow if server not working hard?

Steve McMahon steve at dcn.org
Wed Feb 6 04:31:44 UTC 2013

First, make absolutely sure you are not running in debug or foreground
mode. The performance hit is astonishing.

Then, take a read through
http://developer.plone.org/reference_manuals/active/deployment/ to get an
orientation on memory use, load balancing and caching. Unless you've tuned
some memory settings, set up caching and configured load balancing, you're
only going to use a fraction of the capacity of that server.

Once you've got the concepts down, read
http://developer.plone.org/performance for details.

On Tue, Feb 5, 2013 at 7:48 PM, dgroos <djgroos at gmail.com> wrote:

> Hi All,
> Wish I could delete post from earlier today, this one is clearer and has a
> more informative title. Please refer to this post.
> Our plone 4.2.3 site seems fairly snappy with single user.  With 25
> students
> simultaneously accessing the site (as authenticated members), things bogged
> down to almost a halt--taking 3-5 or more minutes to simply load a page.  I
> deactivated as many non-essential add-ons as I could, including dropdown
> menu, diazo and a theme, but still pages would still take 2-3 minutes to
> load with a class of 25.
> Strangely, htop reported the processors rarely pegged 100%, and even after
> 30 minutes of this painful process, the load averages were .48, and .36 (as
> reported in htop)!  And, again according to htop, the memory used was less
> than 1/2 the physical RAM available!
> *Details:
> *---Plone 4.2.3 zeo/root install running in production mode on our
> districts
> backbone--very good network specs.
> ---Hardware is ProLiant DL380 G4, 2 cpu, dual-core Xeon CPU 3.20GHz
> processors (total 4 cores), 6 GB RAM.
> ---It is running Ubuntu 10.04.
> ---Apache rewrite rules to serve on port 80.
> ---Student computers access site from within district firewall (I'll try
> pointing browser at the 10.x.x.x internal address and not FQDN next time).
> ---Plone running "LDAP Support" uses the district's Active Directory
> server.
> Any recommendations for areas to investigate?  Things I could try?  Logs to
> check? I really want to use Plone with my students often, and I know I
> can't
> unless this nut can be cracked.
> *Here are further ZMI-reported specs:
> *Zope Version  (2.13.19, python 2.7.3, linux2)
> Python Version  2.7.3 (default, Dec 30 2012, 17:12:59) [GCC 4.4.3]
> System Platform linux2
> INSTANCE_HOME  /usr/local/Plone/zeocluster/parts/client1
> CLIENT_HOME  /usr/local/Plone/zeocluster/var/client1
> Network Services ZServer.HTTPServer.zhttp_server (Port: 8080)
> Running For 22 days 23 hours 9 min 57 sec
> (main database was small: 548 MB and after packing went down to 273 MB)
> Thanks for your work on Plone,
> David Groos
> --
> View this message in context:
> http://plone.293351.n2.nabble.com/Re-post-as-Why-Plone-4-2-3-page-loads-slow-if-server-not-working-hard-tp7562994.html
> Sent from the Installation, Setup, Upgrades mailing list archive at
> Nabble.com.
> _______________________________________________
> Setup mailing list
> Setup at lists.plone.org
> https://lists.plone.org/mailman/listinfo/plone-setup
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.plone.org/pipermail/plone-setup/attachments/20130205/16e87107/attachment-0001.html>

More information about the Setup mailing list