Re: [PATCH] [request for inclusion] Realtime LSM

[Jack O'Quin]

Mike Galbraith <efault@xxxxxx> writes:

> At 05:31 PM 1/13/2005 -0600, Jack O'Quin wrote:
>>Yes.  However, my tests have so far shown a need for "actual FIFO as
>>long as the task behaves itself."
>
> I for one wonder why that appears to be so.  What happens if you use
> SCHED_RR instead of SCHED_FIFO?
>
> (ie is the problem just one of running out of slice at a bad time, or
> is it the dynamic priority adjustment)

I have no quick and easy test for that.  

If it's important, I can modify a version of JACK to use SCHED_RR,
instead.

I very much doubt it would make any difference, since we normally only
run one realtime thread at a time.  Each client taps the next on the
shoulder when it is time for it to run, so there is essentially no
concurrency among them.
-- 
  joq
-
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/