[LAD] Gone virtually Meego 1.1 in Fedora -- lots of questions....

[Gabriel Beddingfield]

Hi Neils,

On Sun, Oct 24, 2010 at 11:42 AM, Niels Mayer <nielsmayer at gmail.com> wrote:
> I was surprised&happy to see "SMP PREEMPT" output from my virtual Meego logs:
>
> Oct 23 21:30:24 localhost klogd: [    0.000000] Linux version
> 2.6.35~rc6-134.1-qemu (abuild at build16) (gcc version 4.5.0 20100414
> (MeeGo 4.5.0-1) (GCC) ) #1 SMP PREEMPT Thu Jul 29 10:40:24 UTC 2010
>
> Seems like all that's missing between this solution and my "meegolem"
> hack of adding Fedora RPMFusion and PlanetCCRMA app/lib/devel
> repositories to Meego is the "RT" from the CCRMA realtime kernel? Or
> is Meego 1.1 already fully realtime capable and the message just omits
> "RT" ?

MeeGo's kernel is not PREEMPT_RT.

For several good reasons, MeeGo needs a 2.6.35 kernel, and there
currently is no -rt patch for that kernel.

At the moment, pro audio performance on MeeGo is bad because of CPU
frequency scaling.  However, if you disable it[1] I'm getting good RT
performance from MeeGo.

-gabriel

[1] One way is to recompile the kernel with some different config options.