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
Date: Fri, 12 Apr 2002 17:12:06 +0200 [thread overview]
Message-ID: <20020412171206.2783acce.ggimenez@prologue-software.fr> (raw)
In-Reply-To: <20020412100804.A6605@pcmaftoul.esrf.fr>
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Samuel Maftoul a écrit:
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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next prev parent reply other threads:[~2002-04-12 15:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-12 6:46 /dev/zero blesson paul
2002-04-12 7:19 ` /dev/zero Frank Schaefer
2002-04-12 7:26 ` /dev/zero Rowan Ingvar Wilson
2002-04-12 8:08 ` /dev/zero Samuel Maftoul
2002-04-12 15:12 ` Guillaume Gimenez [this message]
2002-04-12 23:02 /dev/zero Samuel Maftoul
2002-04-19 8:33 /dev/zero blesson paul
2002-04-19 10:22 ` /dev/zero Frank Schaefer
2002-04-20 0:50 ` /dev/zero willam
2002-04-23 22:46 ` /dev/zero Bill Davidsen
2002-04-19 16:35 /dev/zero Torrey Hoffman
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