[Zope] Unexplained Slowdown

[Tom Deprez]

Hi all,

Thanks for this file! Yesterday I thought I'd lost it, altough I heard more
rumours of 'slowdown' I couldn't find a solution for my problem since I gave
that demo and zope was so slow... you should have seen my face at that
moment (completely red!).
I tried everything, reinstallation of zope and interbase drivers, etc...
My last resort was going to an earlier version of zope, or trying to use
pcgi, but this morning I found this patch in my mailbox. I tried it
and...... nice! All problems were gone.

So, now I can give the demo again and zope will be fast again :-)!

Regards, Tom

ps. Can you give more information on this? ie something more than the lines
below. It seems an interesting case.

----- Original Message -----
From: "Brian Lloyd" <brian@digicool.com>
To: "Ian Thomas" <ithomas@sd70.bc.ca>; <zope@zope.org>
Sent: Wednesday, January 17, 2001 10:10 PM
Subject: RE: [Zope] Unexplained Slowdown


> This is due to an ill-fated attempt to make 'domain-based
> authentication' less expensive (but that backfired to some
> extent because it can make non domain-based auth more
> expensive, especially if reverse DNS lookups are slow for
> you). This is fixed for 2.3 b2 - in the meantime you should be
> able to copy the attached User.py to fix the problem for
> now.
>
>
> Brian Lloyd        brian@digicool.com
> Software Engineer  540.371.6909
> Digital Creations  http://www.digicool.com
>
>
>
>
> > -----Original Message-----
> > From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of Ian
> > Thomas
> > Sent: Wednesday, January 17, 2001 3:41 PM
> > To: zope@zope.org
> > Subject: [Zope] Unexplained Slowdown
> >
> >
> > When I upgraded to Zope 2.2.5 access to my Zope over the web slowed down
> > dramatically and I haven't been able to figure out why. I am interested
> > in ideas I can try to track it down the problem or at least
> > quantify/benchmark the slowness.
> >
> > Some background.
> > 1) I am a computer teacher teaching Zope to my second year web
> > development students who have already learned HTML and been introduced
> > to JavaScript.
> > 2) The server is a my test machine that my students and I use for
> > learning.
> > 3) The "production" server still running 2.2.4 continues to preform
> > normally.
> > 4) The machine is Celeron 500 mhz 64 meg ram running Windows 2000 Server
> > 5) I run Medusa server that comes with Zope to server the web pages.
> > 6) There is no gateway set up on this machine so that it is only visible
> > from within the school.
> >
> > Notes.
> > 1) It is much faster if I access via localhost on the server.
> >
> > What I have tried.
> > 1) Installing 2.2.4 on another port. It ran just as slow.
> > 2) Today I removed the 2.2.4 installation and installed 2.3beta, again
> > it seems just as slow.
> >
> > What Next?
> > The next thing I was thinking was to serve the webpages from IIS using
> > PCGI.
> > I am interested in other ideas.
> >
> > I. Thomas
> >
> >
> >
> >
> >
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> >