Subject: Re: poor sata performance on 2.6
From: Justin Cormack <justin@street-vision.com>
To: kos@supportwizard.com
Cc: Ryan Geoffrey Bourgeois <rgb005@latech.edu>,
       Kernel mailing list <linux-kernel@vger.kernel.org>,
       linux-ide@vger.kernel.org
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	 <1082037632.19567.72.camel@lotte.street-vision.com>
	 <200404151826.54488.kos@supportwizard.com>
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Date: Thu, 15 Apr 2004 15:33:13 +0100
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On Thu, 2004-04-15 at 15:26, Konstantin Sobolev wrote:
> On Thursday 15 April 2004 18:00, Justin Cormack wrote:
> > hmm, odd. I get 50MB/s or so from normal (7200, 8MB cache) WD disks, and
> > Seagate from the same controller. Can you send lspci, /proc/interrupts
> > and dmesg...
> 
> Attached are files for 2.6.5-mm5 with highmem, ACPI and APIC turned off.

ah. Make a filesystem on it and mount it and try again. I see you have
no partition table and so probably no filesystem. This means the block
size is set to default 512byte not 4k which makes disk operations slow.
Any filesystem should default to block size of 4k, eg ext2.

Justin


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