From: Denis Vlasenko <vda@ilport.com.ua>
To: Willy Tarreau <willy@w.ods.org>
Subject: Re: Eradic disk access during reads
Date: Sun, 18 Sep 2005 13:40:28 +0300
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Cc: Al Boldi <a1426z@gawab.com>, linux-kernel@vger.kernel.org
References: <200509170717.03439.a1426z@gawab.com> <200509171323.53054.a1426z@gawab.com> <20050917184643.GA1313@alpha.home.local>
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> > > You can do " readspeed </dev/hda | tr '\r' '\n' > log " with the readspeed
> > > tool from there :
> > >    http://w.ods.org/tools/readspeed
> > 
> > Does it have msec resolution?
> 
> no, it does not. It will only show you the average transfer rate during
> the past second each second. It often helps me tune network, nfs, raid, ...
> 
> Denis' tool seems clearly more suited to analyse your problem.

Denis' tool just got a homepage :)

http://195.66.192.167/linux/vdautil-0.5/src/
--
vda
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