From: Vladimir Milovanovic <vlad@webmail.co.za>
To: Gregory Leblanc <gleblanc@linuxweasel.com>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Tiobench results LOWER with more threads
Date: Fri, 18 Oct 2002 09:48:31 +0200 [thread overview]
Message-ID: <3DAFBCCF.1020000@webmail.co.za> (raw)
In-Reply-To: 20021018023137.GC18294@peeps.cable.rcn.com
Gregory Leblanc wrote:
>
>
>Interesting. How fast are you getting single-threaded reads from a
>single disk? And what are the real specs on the drives (RPM, cache,
>SCSI version support (SCSI 3 is a family, not a version)).
>
I am getting about 12 MB/s for sequential reads single threaded per
disk. The disks are 18GB, 7200 rpm, ultra fast/wide scsi disks. I am
really not sure about the cache.
So what is the consensus now? Let's just stick to RAID 0 - should I see
more when going multithreaded or should I not be worried that the
transfer rates are dropping off? Note that the rates drop off even if I
am only running a 2 disk RAID 0 i.e. my bus is not being maxed out then.
Cheers, Vlad.
next prev parent reply other threads:[~2002-10-18 7:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-15 8:20 Tiobench results LOWER with more threads Vladimir Milovanovic
2002-10-17 21:50 ` Jakob Oestergaard
2002-10-18 2:31 ` Gregory Leblanc
2002-10-18 2:52 ` Maurice Hilarius
2002-10-18 7:48 ` Vladimir Milovanovic [this message]
2002-10-18 11:19 ` Jakob Oestergaard
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