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Subject: Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2
From: Mike Galbraith <efault@gmx.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Con Kolivas <kernel@kolivas.org>,
       linux kernel mailing list <linux-kernel@vger.kernel.org>,
       ck list <ck@vds.kolivas.org>, Andrew Morton <akpm@linux-foundation.org>
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	 <1173613149.6927.29.camel@Homer.simpson.net>
	 <20070311121038.GA9146@elte.hu>
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Date: Sun, 11 Mar 2007 13:20:42 +0100
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On Sun, 2007-03-11 at 13:10 +0100, Ingo Molnar wrote:
> * Mike Galbraith <efault@gmx.de> wrote:
> 
> > > Full patch for 2.6.21-rc3-mm2: 
> > > http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-mm2-rsdl-0.29.patch
> > 
> > I'm seeing a cpu distribution problem running this on my P4 box.
> 
> > With 2.6.21-rc3, X/Gforce maintain their ~50% cpu (remain smooth), and 
> > the encoders (100%cpu bound) get whats left when Amarok isn't eating 
> > it.
> > 
> > I plunked the above patch into plain 2.6.21-rc3 and retested to 
> > eliminate other mm tree differences, and it's repeatable.  The nice 5 
> > cpu hogs always receive considerably more that the nice 0 sleepers.
> 
> hm. Do you get the same same problem on UP too? (i.e. lets eliminate any 
> SMP/HT artifacts)

I'll boot up nosmp and report back (but now it's time to take Opa to the
Gasthaus for his Sunday afternoon brewskies;)

	-Mike