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From: Prakash Punnoor <prakash@punnoor.de>
To: ck@vds.kolivas.org
Subject: Re: [ck] [PATCH] sched: staircase deadline misc fixes
Date: Wed, 28 Mar 2007 19:34:17 +0200
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Cc: Con Kolivas <kernel@kolivas.org>,
       linux list <linux-kernel@vger.kernel.org>
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Am Mittwoch 28 M=E4rz 2007 schrieb Con Kolivas:
> I'm cautiously optimistic that we're at the thin edge of the bugfix wedge
> now.
>
> ---
> set_load_weight() should be performed after p->quota is set. This fixes a
> large SMP performance regression.

Hi, I am using 2.6.21-rc5 with rsdl 0.37 and think I still see a regression=
=20
with my Athlon X2. Namely using this ac3 encoder=20
(http://aften.sourceforge.net/), which I parallelized in a simple way, with=
=20
my test sample I remember having encoding times of ~5.4sec with vanilla and=
=20
~5.8 sec with rsdl - once the whole test wave is in cache. Otherwise you ca=
n=20
easily I/O limit the encoder. ;-) You need to get sources from svn though.=
=20
The current 0.06 release doesn't have threads support.

Cheers,

=2D-=20
(=B0=3D                 =3D=B0)
//\ Prakash Punnoor /\\
V_/                 \_V

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