Date: Sun, 7 Oct 2007 09:18:11 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Jarek Poplawski <jarkao2@o2.pl>
Cc: David Schwartz <davids@webmaster.com>, linux-kernel@vger.kernel.org
Subject: Re: Network slowdown due to CFS
Message-ID: <20071007071811.GA31302@elte.hu>
References: <20071002060607.GA18588@elte.hu> <20071003080224.GB1726@ff.dom.local> <20071003081613.GA29904@elte.hu> <20071003085636.GC1726@ff.dom.local> <20071003091058.GB7802@elte.hu> <20071003095057.GD1726@ff.dom.local>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20071003095057.GD1726@ff.dom.local>
User-Agent: Mutt/1.5.14 (2007-02-12)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 972
Lines: 23


* Jarek Poplawski <jarkao2@o2.pl> wrote:

> > [...] The timeslices of tasks (i.e. the time they spend on a CPU 
> > without scheduling away) is _not_ maintained directly in CFS as a 
> > per-task variable that can be "cleared", it's not the metric that 
> > drives scheduling. Yes, of course CFS too "slices up CPU time", but 
> > those slices are not the per-task variables of traditional 
> > schedulers and cannot be 'cleared'.
> 
> It's not about this comment alone, but this comment plus "no notion" 
> comment, which appears in sched-design-CFS.txt too.

ok - i've re-read it and it indeed is somewhat confusing without 
additional context. I'll improve the wording. (sched-design-CFS.txt 
needs an update anyway)

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/