[Zope] Advice for performance checking/tuning

[Richard Jones]

On Wed, 24 Apr 2002 17:41, Hannu Krosing wrote:
> We are investigating use of Zope for a portal that will have
> about ~500.000 users.

How many concurrently?


> We did our tests to straight Zope 2.3.4 (no apache or squid in
> front of it). Even when told to use 10 thread only 4 were active
> in top (others were there but were idle) and load average was
> never over 30%.
>
> Where/what should I start investigating ?

Try using the CallProfiler product from zope.org to find out what your 
requests are doing - and where they're slow. Then optimise those sections of 
code. If you can, use caching to remove whole slabs of the call tree.


    Richard