Re: [PATCH 10/10] sched: rt: dont stop the period timer when thereare tasks wanting to run

From: Ingo Molnar
Date: Fri Jun 20 2008 - 05:06:48 EST



* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:

> On Thu, 2008-06-19 at 20:10 +0000, Daniel K. wrote:
> > Peter Zijlstra wrote:
> > > When a runnable group failed to get any runtime within a period it would be
> > > found idle and the period timer would be stopped.
> > >
> > > So if the group ever gets throttled, it will never wake up again.
> > >
> > > Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> > > Reported-by: "Daniel K." <dk@xxxxx>
> > Tested-by: Daniel K. <dk@xxxxx>
> >
> > I think this should go into .26 as well, due to the non-intuitiveness
> > of the knobs that cause this if they are fiddled with in the wrong way.
>
> Sounds reasonable, Ingo?

agreed - i've put it into tip/sched/urgent as well.

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/