[Setup] Re: Varnish cache does not appear to speed up page delivery

Martin Aspeli optilude+lists at gmail.com
Wed Mar 4 12:03:04 UTC 2009

JimL wrote:
> Hi,
> I've installed Plone on a test machine (2.53GHz Intel Pentium 4, 1GB RAM -
> running CentOS 5.2) and have done some rough benchmarking with Apache
> Benchmark:
> With CacheFu set up my site is performing very well: 32 requests per second.
> After installing Varnish via 
> http://plone.org/documentation/tutorial/buildout/a-deployment-configuration
> the standard buildout method  the corresponding results for pages delivered
> via Varnish are: 30 requests per second. 
> I have set Varnish to round-robin the two backends created by a default
> Plone install (ports 8080 and 8081).
> Am I expecting Varnish to work too fast? Should I consider dropping Varnish
> completely and just using something like pound to sit in front of my two
> backends?

Try to run varnishstat and look for cache hits and misses. It's possible 
that you've got your setup messed up. If you're testing, try to test as 
anonymous first.


Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book

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