Messages in this thread | | | Date | Mon, 10 Feb 2003 13:25:38 +0100 | From | Andrea Arcangeli <> | Subject | Re: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] |
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On Mon, Feb 10, 2003 at 04:12:45AM -0800, Andrew Morton wrote: > traffic, etc would be expected. Could be that sending out a > request which is larger than a track is saving a rev of the disk > for some reason.
I'm guessing something on those lines yes, I doubt it's purerely in core overhead that makes that much difference. Just for completeness, I never read this in literature or data sheets, this is all out of pratical experience, so we can't exclude something odd in the scsi layer, but I very much doubt, the only thing that might explain it is to waste cpu and we know it's not wasting it.
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