[mythtv-users] Mythbuntu 8.10 and Realtime Priority

[James Crow]

On Fri, 2009-02-20 at 10:59 -0800, Mark Knecht wrote:
> On Fri, Feb 20, 2009 at 10:19 AM, James Crow <james at ultratans.com> wrote:
> > On Fri, 2009-02-20 at 10:03 -0800, Mark Knecht wrote:
> <SNIP>
> >> Again please, what kernel are you using?
> <SNIP>
> > ~/tmp$ uname -a
> > Linux mythbedrm 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008
> > x86_64 GNU/Linux
> >
> > Mythbuntu 8.10 (amd64)
> 
> Does this kernel have the real-time patches applied? It doesn't look
> like it from the name.
> 
> Let's make sure it's configured. MAke sure /usr/src/linux points at
> your kernel and then run
> 
> cat /usr/src/linux/.config | grep CONFIG_PREEMPT_RT
> 
> mark at lightning ~ $ cat /usr/src/linux/.config | grep CONFIG_PREEMPT_RT
> CONFIG_PREEMPT_RT=y
> mark at lightning ~ $
> 
> cat /proc/sys/kernel/sched_rt_period_us
> cat /proc/sys/kernel/sched_rt_runtime_us
> 
> Thanks,
> Mark

The kernel is stock Mythbuntu. Here is the info:
james at mythbedrm:/boot$ grep
CONFIG_PREEMPT_RT /boot/config-2.6.27-9-generic 
james at mythbedrm:/boot$ cat /proc/sys/kernel/sched_rt_period_us 
1000000
james at mythbedrm:/boot$ cat /proc/sys/kernel/sched_rt_runtime_us 
950000
james at mythbedrm:/boot$ 

The lack of the kernel options in my config file would indicate that I
am not using a realtime kernel. Does the presence of
the /proc/sys/kernel/* files indicate some of the RT patches are
included?

Thanks,
James