[Zope] Performance problem with zpscopgda
Roach, Mark R.
19 Mar 2003 17:44:53 -0500
On Tue, 2003-03-18 at 16:34, Dieter Maurer wrote:
> I expect that the rendering is quite costly.
> DTML and Python scripts perform a costly security check
> (it the user allowed to access this variable/method)
> on every access.
Hi, Dieter, I think you are right, it does appear to be the rendering
and not the sql query (good news). I guess I was reading that output
I have discovered that using a python script instead of dtml, even for
what seems like very simple markup can make a tremendous performance
difference. I replaced a couple of often-run dtml methods with python
scripts and reduced execution time from 5+ seconds to ~.8 seconds in
some cases. I was pretty surprised by how drastic that was.
> Try to implement the rendering in an External Method
> and see whether it becomes faster.
> I can recommend my "ZopeProfiler" product to
> see precisely where Zope spends its time. See
Thanks, I will try both of those suggestions. I guess it might also be
time for me to investigate writing a product.
Thanks again for your help.