[mythtv-users] "Nice" recommendations
J.Pilk at tesco.net
Tue Oct 31 13:35:12 UTC 2017
On 31/10/17 11:27, Mark Perkins wrote:
> On 31 October 2017 8:53:39 pm Stuart Auchterlonie
> <stuarta at squashedfrog.net> wrote:
>> On 31/10/17 06:15, Ian Evans wrote:
>>> I notice that when I run a mythvidexport.py user job moving a recording
>>> to the video section, the responsiveness of the interface grinds to a
>>> halt and the load goes north of 5.
>>> Haven't really used nice much. Any recommendations what nice level I
>>> should run it at?
>> nice -19
>> which is basically background task, and everything else takes priority.
> I am kind of working from memory here but maybe add an ionice -c3 as well?
Yes, I use that too. Many media-type jobs do not-much number crunching
but a lot of data shifting. ionice -c3 sets I/O priority to 'idle' and
'man ionice' says "The impact of an idle I/O process on normal system
activity should be zero" That's not what I see, but I think it helps.
MythArchive is supposed to be able to use psutil to do this, but the
last time I tried that it hung; calling ionice -c3 mythburn.py still
works for me.
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