linux-kernel - Re: Question about fair schedulers

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Message-ID: <7b9198260706230405y5c4a173dx82a18fcc14a10272@mail.gmail.com>
Date:	Sat, 23 Jun 2007 12:05:17 +0100
From:	"Tom Spink" <tspink@...il.com>
To:	"Alberto Gonzalez" <info@...bu.es>
Cc:	"Willy Tarreau" <w@....eu>, "Paolo Ornati" <ornati@...twebnet.it>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: Question about fair schedulers

On 23/06/07, Alberto Gonzalez <info@...bu.es> wrote:
> On Saturday 23 June 2007, Willy Tarreau wrote:
> > On Sat, Jun 23, 2007 at 12:45:30PM +0200, Alberto Gonzalez wrote:
> > > Ok, so if I understand correctly, the problem I had in my simple test
> > > will be solved by distributions once a fair scheduler goes into mainline?
> >
> > No, there is no reason to wait for a fair scheduler at all. A *desktop*
> > distro *must* take process priorities into account, otherwise it's broken
> > by design.
>
> Well, right now with the mainline scheduler it works fine. The player gets
> more CPU time than the encoder. It was when I switched to -ck kernel (with a
> fair scheduler) that it didn't work correctly, that's why I asked about
> this "fair" concept in the first place.
>
> I guess once a fair scheduler goes mainline they will adapt things to work
> correctly again.
>
> > Regards,
> > Willy
>
> Cheers,
> Alberto.
>
>
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Alberto,

If you're feeling adventurous, grab the latest kernel and patch it
with Ingo's scheduler: CFS.

You may be pleasantly surprised.

-- 
Regards,
Tom Spink
University of Edinburgh
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