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From <aus...@coremetrics.com>
Subject Re: AAP vs. Zeus (was Re: AAP patch for 2.0a6 available)
Date Wed, 06 Sep 2000 23:19:22 GMT
What kind of testing did you do to arrive at these figures?
Austin

>>>>>>>>>>>>>>>>>> Original Message
<<<<<<<<<<<<<<<<<<

On 9/6/00, 5:14:05 PM, Jeffrey "W." Baker <jwbaker@acm.org> wrote regarding 
Re: AAP vs. Zeus (was Re: AAP patch for 2.0a6 available):


> On Wed, 6 Sep 2000, Mike Abbott wrote:

> > On a dual-PentiumIII Linux 2.4 system we found that Apache/2.0 with the
> > state-threaded MPM runs at about 2/3 the speed of Zeus 3.3.  With the
> > dexter MPM it runs at about 1/2 Zeus.  For reference, Apache/1.3.12
> > fully accelerated with the AAP's patches runs faster than Zeus and
> > spends 1/2 as much time as Zeus and 1/4 as much time as Apache/2.0 in
> > user mode.  Linux 2.2 exhibits negative scalability (two processors are
> > slower than one); 2.4 is much better.  Here's the Linux 2.4 data
> > normalized to Apache/1.3.12:
> >
> > software            speed   user / system time
> > --------            -----   ------------------
> > Apache/1.3.12 + AAP 1.00    6% / 94%
> > Zeus 3.3            0.92    13% / 87%
> > Apache/2.0a4 + STM  0.68    25% / 75%
> > Apache/2.0a4 + dexter       0.54    25% / 75%

> Well, that stinks.  From what workload were these figures derived?  Since
> you mention negative CPU scalability in Linux 2.2, I would assume that 
you
> are spraying static content over a fast wire.

> -jwb

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