Messages in this thread | | | Date | Sat, 28 Jan 2006 22:28:58 +0100 | From | Jens Axboe <> | Subject | Re: I/O Scheduling |
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On Sat, Jan 28 2006, Lee Revell wrote: > On Sat, 2006-01-28 at 20:18 +0100, Jens Axboe wrote: > > On Sat, Jan 28 2006, Lee Revell wrote: > > > On Sat, 2006-01-28 at 18:54 +0100, Florian Schmidt wrote: > > > > > > > > i'm also interested in these. Especially I/O priorities per > > > > process/task similar to scheduling priorities. It would be just > > > > awesome to be able to give i.e. a hd recording program (or any other > > > > data aquisition or playback program) a high I/O priority. > > > > > > > > > > I believe it's already implemented for the CFQ scheduler only, but the > > > patch does not seem to be in mainline. > > > > > > Jens, what's the status of this? > > > > It's merged, since 2.6.13. > > > > OK, I was looking at an old patch, the API must have changed. Can it be > controlled per thread, independently of the nice value/RT priority?
Yes it can, get a recent util-linux and look at ionice (there's a man page, too).
-- Jens Axboe
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