From: Gordon Ross (G.Ross_at_ccw.gov.uk)
Date: Mon Aug 06 2007 - 19:56:40 CEST
Message-Id: <46B76EC8.AC0B.0006.3@ccw.gov.uk> Date: Mon, 06 Aug 2007 18:56:40 +0100 From: "Gordon Ross" <G.Ross@ccw.gov.uk> Subject: Re: [suse-sles-e] Slow direct I/O performance SLES 10 SP1
>>> On 06 August 2007 at 18:52, in message
<000601c7d852$83037bf0$14a8a8c0@brain>,
"Andreas Mock" <Andreas.Mock@web.de> wrote:
>> -----Ursprüngliche Nachricht-----
>> Von: suse-sles-e-return-4272-andreas.mock=web.de@suse.com
>>
>> dd oflag=direct if=/dev/zero of=data.out bs=4k count=500000
>>
>
>
> Hi all,
>
> really nobody out there who coud perform this simple
> test with SPLES 10 SP1 on a local filesystem?
>
> dd oflag=direct if=/dev/zero of=data.out bs=4k count=10000
>
> I'm interested in the average throughput and the related hardware.
hq-hls3:~ # dd oflag=direct if=/dev/zero of=data.out bs=4k count=10000
10000+0 records in
10000+0 records out
40960000 bytes (41 MB) copied, 0.88554 seconds, 46.3 MB/s
HP DL385G2 on internal HD controller. (SATA discs)
hq-hls1:~ # dd oflag=direct if=/dev/zero of=data.out bs=4k count=10000
10000+0 records in
10000+0 records out
40960000 bytes (41 MB) copied, 41.4103 seconds, 989 kB/s
HP DL385 on internal HD controller (SCSI HDs)
GTG
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