Re: [patch] SCHED_SOFTRR starve-free linux scheduling policy ...

Davide Libenzi (
Mon, 14 Jul 2003 00:35:22 -0700 (PDT)

On Mon, 14 Jul 2003, Jamie Lokier wrote:

> Mike Galbraith wrote:
> > I also had some sound skips due to inheritance. If I activate
> > xmms's gl visualization under load, it inherits SCHED_SOFTRR, says
> > "oink" in a very deep voice, and other xmms threads expire. Maybe
> > tasks shouldn't inherit SCHED_SOFTRR?
> That's likely a bug in xmms - it shouldn't be passing the normal
> SCHED_RR state to the gl visualizer.
> Maybe SOFTRR should penalise the most CPU-using SOFTRR tasks, leaving
> the remaining ones in the real-time state.

Since xmms is unlikely already supporting SOFTRR :) I believe that he did
what I did with RealPlay, let it get the policy for inheritance. In my
case RealPlay (only with sound) did not skip even under thud.c load.

- Davide

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