On Tue, 21 Aug 2001, Mike Silbersack wrote:
>
> On Tue, 21 Aug 2001, Giorgos Verigakis wrote:
>
> > Hello, I'm using Zope application server (www.zope.org) on FreeBSD
> > and I'm experiencing some serious performance issues.
> > Since I hadn't noticed any problems at the past with Linux, I did
> > some benchmarks to investigate it a little.
> >
> > I've written a small program that connects to Zope and tries to
> > retrieve a non-existant URL (source code appended). While Linux
> > performed almost linearly depending on the number of hits/sec,
> > FreeBSD (and OpenBSD) performed exponential. I allready sent
> > a mail to the zope-list but I did not get much info.
> > Since Zope is a threaded application I was wondering maybe it
> > was related with the thread implementation (the scheduling maybe?)
>
> I suspect that the reload time spiking is due to our initial sequence
> number generation scheme, which is currently shared with OpenBSD. This
> will be changing RSN, which will likely change how your benchmarks look.
> (They should look better after the change.)
I don't understand. How is it related with the initial sequence number?
>
> I'm curious about the reload time, though. Is it really in seconds? What
> is it measuring?
Yes it's in seconds. What I wanted to measure was the time a page needs to
be loaded, because the results I was getting were unexpectable.
>
> Oops, I just noticed the source below... I'll read it and try out the test
> to see if my above theory is correct later today.
>
> Mike "Silby" Silbersack
>
>
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