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From: Daniel Phillips <phillips@arcor.de>
To: Andrew Morton <akpm@digeo.com>,
       Paolo Ciarrocchi <ciarrocchi@linuxmail.org>
Subject: Re: LMbench2.0 results
Date: Sun, 8 Sep 2002 22:02:04 +0200
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On Saturday 07 September 2002 18:20, Andrew Morton wrote:
> Paolo Ciarrocchi wrote:
> > 
> > Hi all,
> > I've just ran lmbench2.0 on my laptop.
> > Here the results (again, 2.5.33 seems to be "slow", I don't know why...)
> > 
> 
> The fork/exec/mmap slowdown is the rmap overhead.  I have some stuff
> which partialy improves it.

It only seems like a big deal if you get out your microscope and focus on
the fork times.  On the other hand, look at the sh times: the rmap setup
time gets lost in the noise.  The latter looks more like reality to me.

I suspect the overall performance loss on the laptop has more to do with
several months of focussing exclusively on the needs of 4-way and higher
smp machines.

-- 
Daniel
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