linux-kernel - Re: [ck] Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)

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Date:	Sun, 29 Jul 2007 22:47:16 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	John <darknessenvelops@...il.com>
Cc:	Kasper Sandberg <lkml@...anurb.dk>, ck@....kolivas.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [ck] Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)

* John <darknessenvelops@...il.com> wrote:

> Ingo-
> 
> Why not perform the same test using the native linux Q3 client to 
> compare numbers to wine? [...]

I regularly test native Linux games on CFS, and they all behave well. 
While waiting for more detailed data from Kasper i was looking for 
atypical stuff in Kasper's description about what his workload involves, 
and what looked a bit atypical was that Kasper's workload also involved 
gaming under Wine:

> > > my test subjects are quake(s), world of warcraft via wine, unreal 
> > > tournament 2004. [...]

and Wine is a more complex server/client scenario instead of a single 
(and simple) standalone Quake3 binary that the Linux binary does. So it 
looked more interesting from a scheduler workload (and scheduler 
regression) POV. In any case i'll need more info from Kasper.

	Ingo
-
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