[mythtv-commits] Ticket #13170: Restore realtime priority capability for vsync thread

[MythTV]

#13170: Restore realtime priority capability for vsync thread
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 Reporter:  Doug Larrick <doug@…>  |          Owner:  pbennett
     Type:  Patch - Feature        |         Status:  infoneeded_new
 Priority:  minor                  |      Milestone:  needs_triage
Component:  Ports - rPi            |        Version:  Master Head
 Severity:  medium                 |     Resolution:
 Keywords:                         |  Ticket locked:  0
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Comment (by Doug Larrick <doug@…>):

 Duplicate, sure, but with patch.

 I would say that realtime scheduling of the video sync thread is crucial
 on a low-resource device such as Raspberry Pi. Certainly it helps
 immensely in my testing --
 as it did on the PC hardware of the day back in 2004 when I originally
 implemented this feature. Showing the next frame at the correct time is a
 real-time task, after all. On a modern PC there's enough spare CPU power
 that it hardly matters. Unfortunately QThread does not seem to support
 realtime scheduling.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13170#comment:6>
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