From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michal Soltys <soltys@ziu.info>
Subject: Re: Benchmarks: Linux Kernel RAID vs a Hardware RAID setup
Date: Wed, 16 Jul 2008 07:50:10 +0200
Message-ID: <487D8C12.4080107@ziu.info>
References: <1216130769.5633.318.camel@sam.localdomain> <487CC660.9030004@ziu.info> <487D09E7.1010805@sauce.co.nz> <Pine.LNX.4.64.0807151831070.32734@filesrv1.baby-dragons.com>
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To: "Mr. James W. Laferriere" <babydr@baby-dragons.com>
Cc: Richard Scobie <richard@sauce.co.nz>, linux-raid maillist <linux-raid@vger.kernel.org>
List-Id: linux-raid.ids

Mr. James W. Laferriere wrote:
>     Hello Richard ,
> 
>     At what level (2.6.26) does one set readahead ?
>     I've searched 'mount' ,  'mdadm' ,  'Documentation/md.txt' .  Where 
> else should I look ?  Obviously I am missing something .
> 

 From what I know, only the layer directly under the filesystem is 
meaningful in any way - check out this post:

http://marc.info/?l=linux-raid&m=120659089505963&w=2