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To: Matthias Andree <matthias.andree@stud.uni-dortmund.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.x has finally made it!
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From: Doug McNaught <doug@wireboard.com>
Date: 13 Nov 2001 12:15:12 -0500
In-Reply-To: Matthias Andree's message of "Tue, 13 Nov 2001 17:42:50 +0100"
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Matthias Andree <matthias.andree@stud.uni-dortmund.de> writes:

> On Tue, 13 Nov 2001, Doug McNaught wrote:
> 
> > It's a benchmark, lighten up!  ;)
> 
> Well, he wanted to benchmark everyday use, and disk latency is also an
> issue for everyday use, of course;

But it's more a measure of your disk subsystem than your VM efficiency 
(unless something is badly wrong). 

>                                   so that's kind of pointless getting
> rid of I/O and benchmarking the cache. fsync() efficiency comes into
> play and wants to be benchmarked as well. How do you know if your
> fsync() syncs what's needed, the whole partition, the partition's meta
> data (softupdates!) or the world (all blocks)?

A very good point that I hadn't considered. 

-Doug
-- 
Let us cross over the river, and rest under the shade of the trees.
   --T. J. Jackson, 1863
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