From: Robin Bowes <robin-lists@robinbowes.com>
To: linux-raid@vger.kernel.org
Subject: Re: non-optimal RAID 5 performance with 8 drive array
Date: Tue, 01 Mar 2005 18:12:06 +0000 [thread overview]
Message-ID: <d02b09$9ud$1@sea.gmane.org> (raw)
In-Reply-To: <6.2.1.2.2.20050301190313.053f5d60@mail.tekno-soft.it>
Roberto Fichera wrote:
> At 18.53 01/03/2005, Robin Bowes wrote:
>> [root@dude test]# dd if=/dev/zero of=/home/test/test.tmp bs=4096
>> count=100000
>> 100000+0 records in
>> 100000+0 records out
>>
>> Notice there is no timing information.
>
> you have to use:
>
> time dd if=/dev/zero of=/home/test/test.tmp bs=4096 count=100000
Robert,
That's not what I meant - I know I can use "time" to get CPU usage
information.
I was meaning that I don't get the disk speed summary like Nicola did, e.g.:
me@beast:$ dd if=/dev/zero of=/storagearray/test.tmp bs=4096
1238865+0 records in
1238864+0 records out
5074386944 bytes transferred in 63.475536 seconds (79942404 bytes/sec)
R.
--
http://robinbowes.com
next prev parent reply other threads:[~2005-03-01 18:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-01 13:24 non-optimal RAID 5 performance with 8 drive array Nicola Fankhauser
2005-03-01 17:53 ` Robin Bowes
2005-03-01 18:04 ` Roberto Fichera
2005-03-01 18:12 ` Robin Bowes [this message]
2005-03-01 18:41 ` Roberto Fichera
2005-03-02 23:08 ` dd with bytes/sec patch [was: non-optimal RAID 5 performance with 8 drive array] Tim Moore
2005-03-04 22:23 ` non-optimal RAID 5 performance with 8 drive array Matthias Julius
2005-03-06 14:25 ` Stephan van Hienen
2005-03-06 14:43 ` Nicola Fankhauser
2005-03-06 17:09 ` Stephan van Hienen
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