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Date: Fri, 12 Apr 2002 17:12:06 +0200
From: Guillaume Gimenez <ggimenez@prologue-software.fr>
To: <linux-kernel@vger.kernel.org>
Cc: Rowan Ingvar Wilson <rowan.ingvar.wilson@0800dial.com>,
        "blesson paul" <blessonpaul@msn.com>, Samuel Maftoul <maftoul@esrf.fr>
Subject: Re: /dev/zero
Message-Id: <20020412171206.2783acce.ggimenez@prologue-software.fr>
In-Reply-To: <20020412100804.A6605@pcmaftoul.esrf.fr>
Organization: Prologue Software
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Samuel Maftoul a ?crit:
    Samuel> It's just zeroes, so it allows you to test raw write speed on any
    Samuel> device:
    Samuel> dd if=/dev/zero of=/dev/hda to test your performances of hda ...
    Samuel> normally if I get it well, /dev/zero can't be you're bottleneck.
    Samuel>         Sam

Just to save Samuel's soul ;-)
the dd command supplied above will erase your primary hard drive

To see hard drive performances, hdparm -tT /dev/hda is better.

PS: Pas sympa Samuel

-- 
Guillaume Gimenez

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