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From Jim Jagielski <...@jaguNET.com>
Subject Re: AAP vs. Zeus (was Re: AAP patch for 2.0a6 available)
Date Thu, 07 Sep 2000 00:04:21 GMT
Mike Abbott wrote:
> 
> Jim Jagielski wrote:
> > It would be interesting to see how it compares to your Zeus
> > implementation ;)
> 
> Yes, it was interesting.  Thanks for the suggestion.
> 
> 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%
> 
> There's plenty of performance work left in Apache/2.0.

>From what I can recall, AAP really significantly improves performance
with 1.3... So I'm _guessing_ that 2.0 untuned is somewhat
on par, performance-wise, with a tuned but non-AAP 1.3. As a
rough guess, would you say that's about right?

These are very good numbers to be honest. Thanks for the info!

-- 
===========================================================================
   Jim Jagielski   [|]   jim@jaguNET.com   [|]   http://www.jaguNET.com/
                "Are you suggesting coconuts migrate??"

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