Re: [patch] Real-Time Preemption, -RT-2.6.12-V0.7.49-00

From: Florian Schmidt
Date: Wed Jun 22 2005 - 07:34:24 EST


On Wed, 22 Jun 2005 01:12:14 +0200 (METDST)
Esben Nielsen <simlo@xxxxxxxxxx> wrote:

> On Tue, 21 Jun 2005, Ingo Molnar wrote:
>
> >
> > * Esben Nielsen <simlo@xxxxxxxxxx> wrote:
> >
> > > I am seeing very high latencies on 2.6.12-RT-V0.7.50-04 with a
> > > modified realfeel2: maximum is 246 us. Shouldn't it be in the order of
> > > 50 us?
> >
> > i never got reliable results from realfeel - it should do the kind of
> > careful things rtc_wakeup does to avoid false positives.
> >
> I tried with rtc_wakeup while I was at work (which is on my disk at home)
> - but it crashed my machine (one have to be _very_ carefull about what you
> do when you run in a task with RT priority!). I have fixed it now (see
> below patch) and it is running for the night. Let us see if I get similar
> results.

Thanks for the patch. New version here:

http://affenbande.org/~tapas/rtc_wakeup/rtc_wakeup-0.0.2.tgz

Flo

--
Palimm Palimm!
http://affenbande.org/~tapas/
-
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/