Messages in this thread | | | Date | Thu, 6 Nov 2003 18:58:13 +0100 | From | Jens Axboe <> | Subject | Re: [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6). |
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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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