Re: [PATCH] Nick's scheduler policy

From: Bill Davidsen
Date: Mon Aug 25 2003 - 17:40:14 EST


On Sun, 24 Aug 2003, Felipe Alfaro Solana wrote:

> On Sun, 2003-08-24 at 14:35, Nick Piggin wrote:
> > Hi,
> > Patch against 2.6.0-test4. It fixes a lot of problems here vs
> > previous versions. There aren't really any open issues for me, so
> > testers would be welcome.
> >
> > The big change is more dynamic timeslices, which allows "interactive"
> > tasks to get very small timeslices while more compute intensive loads
> > can be given bigger timeslices than usual. This works properly with
> > nice (niced processes will tend to get bigger timeslices).
> >
> > I think I have cured test-starve too.
>
> I haven't still found any starvation cases, but forking time when the
> system is under heavy load has increased considerable with respect to
> vanilla or Con's O18.1int:

Not having starvation cases may be worth a little overhead. I am more
concerned about avoiding "jackpot cases" than throughput, at least on a
desktop.

--
bill davidsen <davidsen@xxxxxxx>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

-
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/