Using ionice -c3 in f13: system seems less responsive than under f12
Harald Hoyer
harald at redhat.com
Fri Nov 26 08:46:22 UTC 2010
Am 25.11.2010 14:30, schrieb John Pilkington:
> Hi: My system spends a lot of its time processing video data, often
> with not much numerical processing involved - just remuxing or making an
> iso image. atop often shows disk activity above 90%. I do most of this
> using ionice -c3, (ie 'idle' scheduling) which is supposed to reduce
> impact on other tasks. The man page says "The impact of idle io
> processes on normal system activity should be zero" and certainly
> under f12 that seemed at least approximately true; but under f13
> terminal response is often very sluggish when these tasks are running.
> Using kde 4.5.3, scheduling elevator=deadline (as in f12).
>
> Am I expecting the right thing? Does anyone else see this?
>
> John P
>
maybe your processing is using CPU also?
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