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

[Nick Piggin]

Mike Galbraith wrote:

> At 03:43 PM 8/10/2003 +1000, Nick Piggin wrote:
>
>
> > Roger Larsson wrote:
> >
> > > *       SCHED_FIFO requests from non root should also be treated as 
> > > SCHED_SOFTRR
> >
> > I hope computers don't one day become so fast that SCHED_SOFTRR is
> > required for skipless mp3 decoding, but if they do, then I think
> > SCHED_SOFTRR should drop its weird polymorphing semantics ;)
>
>
> :)  My box is slow enough to handle them just fine, as long as I make 
> sure that oinkers don't share the same queue with the light weight 
> player.


Just my (unsuccessful) attempt at humor! I think SCHED_SOFTRR is great,
although probably fills a quite small niche between SCHED_OTHER and
the realtime scheduling while being a possibility for security problems
(don't know, maybe that that is sorted?). But...

Some of the people saying playback needs to be realtime are right for
absolutely 100%, but seem to have forgotten that their pentium 100 did
just fine, and that a skip now and again probably doesn't signal the
end of the world.

I think its fairly obvious that it indicates there are problems with
the general purpose scheduler. Thankfully it is getting addressed,
which makes this just a rant ;)


-
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/