linux-kernel - Re: [patch] CFS (Completely Fair Scheduler), v2

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Message-ID: <20070417085936.GB16645@elte.hu>
Date:	Tue, 17 Apr 2007 10:59:36 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	S.Çağlar Onur <caglar@...dus.org.tr>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...radead.org>,
	Peter Williams <pwil3058@...pond.net.au>,
	Thomas Gleixner <tglx@...utronix.de>, Willy Tarreau <w@....eu>,
	Gene Heskett <gene.heskett@...il.com>,
	Dmitry Adamushko <dmitry.adamushko@...il.com>
Subject: Re: [patch] CFS (Completely Fair Scheduler), v2


* S.Çağlar Onur <caglar@...dus.org.tr> wrote:

> 17 Nis 2007 Sal tarihinde, Ingo Molnar şunları yazmıştı: 
> >  - fixed child-runs first. A /proc/sys/kernel/sched_child_runs_first
> >    flag can be used to turn it on/off. (This might fix the Kaffeine bug
> >    reported by S.Çağlar Onur <)
> 
> Sorry for delayed response but i just find some free time, do you 
> still want me to test mainline + "parent-runs first" patch or will i 
> drop that one and test v2 which can change default behaviour?

i suspect for now it would be sufficient if you could check the v2 
patch.

if it _works_, please try this:

    echo 0 > /proc/sys/kernel/sched_child_runs_first

this should break Kaffeine again :)

(if it doesnt work then the Kaffeine problem is unrelated to 
child-runs-first.)

	Ingo
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