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Date: Tue, 6 Aug 2002 10:48:51 +0200
From: Jens Axboe <axboe@suse.de>
To: Adrian Bunk <bunk@fs.tum.de>
Cc: Bill Davidsen <davidsen@tmr.com>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: Linux v2.4.19-rc5
Message-ID: <20020806084851.GC1164@suse.de>
References: <20020806054258.GJ3975@suse.de> <Pine.NEB.4.44.0208061024570.27501-100000@mimas.fachschaften.tu-muenchen.de>
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On Tue, Aug 06 2002, Adrian Bunk wrote:
> On Tue, 6 Aug 2002, Jens Axboe wrote:
> 
> >...
> > try a work load that excercises the block i/o layer alone (O_DIRECT,
> > raw, whatnot) and then compare 2.4 and 2.5. ibm had some slides on this
> > from ols, unfortunately I don't know if they have then online.
> >...
> 
> Pages 390-406 in
> 
>   http://www.linux.org.uk/~ajh/ols2002_proceedings.pdf.gz
> 
> or are you talking about something different?

Right thanks, exactly those. Table 3 on page 395 is the one I noted.
Forget readv, as that hasn't been done in 2.5 yet. I'd say a 2.5.17
untweaked kernel beating 2.4 tweaked beyond recognition isn't too shabby
for a devel series kernel.

-- 
Jens Axboe

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