Re: [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6).

From: Jens Axboe
Date: Thu Nov 06 2003 - 13:00:12 EST


On Thu, Nov 06 2003, Arjan van de Ven wrote:
>
> On Thu, Nov 06, 2003 at 06:50:32PM +0100, Jens Axboe wrote:
> > drive it is not). Now both 2.4 and 2.6 make that guarentee. The only
> > argument for disabling clustering would be for 2.4 for CPU cycle
> > reasons.
>
> yep; on 2.4 it's rather visible in the profiles during some benchmark
> test I did (like 5% of total CPU cycles)

yeah so I gather, although 5% seems extremely excessive (512-byte raw
io, on tons of disks?).

--
Jens Axboe

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