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From: Andreas Peter <ujq7@rz.uni-karlsruhe.de>
To: linux-kernel@vger.kernel.org
Subject: Re: SW-RAID0 Performance problems
Date: Fri, 13 Apr 2001 18:28:58 +0200
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Am Freitag, 13. April 2001 18:01 schrieb Jakob ?stergaard:

> I can't say much about this... It looks like your setup is perfectly
> allright, and the performance *should* go up.   Instead it looks like you
> get a small performance drop from using the RAID.   Most odd.
>
> Do you have more controllers in the machine ? If so could you try to move
> eg. hdc to the second controller ?  The only thing I can imagine being the
> cause of the poor performance is, if your controller somehow doesn't handle
> both channels very well simultaneously.   It's far fetched, but it's the
> only suggestion I can think of.

The Board ist a Gigabyte 6BXDS (BX-Chipset) and 2 Celeron 533
I think the hardware is ok.

> I usually get a good speedup from using RAID-0 on 2.4.3 with IDE.  Both
> with two disks and with six.   This is with Intel PIIX4 and Promise 20262
> controllers.

Andreas
-- 
Andreas Peter *** ujq7@rz.uni-karlsruhe.de

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