[mythtv-users] Mythbuntu 8.10 and Realtime Priority

James Crow james at ultratans.com
Fri Feb 20 17:33:41 UTC 2009


On Fri, 2009-02-20 at 16:21 +0000, Robin Hill wrote:
> On Fri Feb 20, 2009 at 11:02:40AM -0500, James Crow wrote:
> 
> > On Thu, 2009-02-19 at 09:45 -0500, James Crow wrote:
> > <snip>
> > > 
> > > and schedtool:
> > > $ schedtool 8693
> > > PID  8693: PRIO   0, POLICY N: SCHED_NORMAL  , NICE   0, AFFINITY 0x3
> > > 
> > 
> > I tried setting the mythfrontend binary SUID. The output from top and
> > schedtool is identical to what I posted above. The log file shows that
> > mythfrontend thinks it is using realtime priority. 
> > 
> > On another frontend that is not set to use RT the output from top and
> > schedtool are the same. Either I am not using RT or I have no way of
> > telling that I am. Does anyone know a definitve way to tell it
> > mythfrontend is using realtime priority?
> > 
> These should be definitive ways.  Just to check (as I've not seen it
> mentioned in this thread), have you actually enabled the "Use Realtime
> threads" option within MythTV?  I can't remember exactly where in the
> configuration it is, but presumably under the "Playback" section.
> 
> Cheers,
>     Robin

Yes it is set. Myth thinks it is using realtime priority threads
(according to the logs), but my attempts to verify have me confused.


Can someone else who uses realtime priority check the output of top and
schedtool to see what their system shows?

Thanks,
James



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