linux-kernel - Re: CFS patch (v6) -- dynamic RT priorities?

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Message-ID: <20070918062606.GA5138@elte.hu>
Date:	Tue, 18 Sep 2007 08:26:06 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Willy Tarreau <w@....eu>
Cc:	Chris Rigg <cdrigg@...cast.net>, linux-kernel@...r.kernel.org
Subject: Re: CFS patch (v6) -- dynamic RT priorities?

* Willy Tarreau <w@....eu> wrote:

> On Mon, Sep 17, 2007 at 02:33:28PM -0600, Chris Rigg wrote:
> > Hello,
> > 
> > I have a system with 2.6.20.7 patched with the v6 CFS patch. I am having 
> > issues (I believe) with fairness in regards to my real-time tasks. 
> > First, let me describe my setup:
> 
> Chris,
> 
> CFSv6 is *very* old. It was not that bad, but looking back, it has 
> improved a lot since. You should upgrade to v20.x first, and it's 
> likely that most of your problems will vanish.

yeah. I remember we fixed something in the RT task balancing area too, 
so chances are that this bug got fixed. The latest backported CFS 
version can be picked up from:

    http://people.redhat.com/mingo/cfs-scheduler/

	Ingo
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