Messages in this thread | | | Date | Tue, 8 Jan 2002 07:43:50 +0100 | From | Jens Axboe <> | Subject | Re: [PATCH][RFT] simple deadline I/O scheduler |
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On Sat, Jan 05 2002, Pavel Machek wrote: > Hi! > > > I've played around with implementing an I/O scheduler that _tries_ to > > start request within a given time limit. Note that it makes no > > guarentees of any sort, it's simply a "how does this work in real life" > > sort of thing. It's main use is actually to properly extend the i/o > > scheduler / elevator api to be able to implement more advanced > > schedulers (eg cello). > > Would it be possible to introduce concept of I/O priority? I.e. I want > updatedb not to load disk if I need it for something else?
I've been toying with equal i/o distribution between the processes in the system, but it isn't done yet. I know Arjan is working on a priority scheduler, too. So something is bound to materialize sooner or later :)
-- Jens Axboe
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