linux-kernel - Re: call for more SD versus CFS comparisons (was: Re: [ck] Mainline plans)

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Message-ID: <20070612085545.GA18553@elte.hu>
Date:	Tue, 12 Jun 2007 10:55:45 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Tobias Gerschner <tobias.gerschner@...il.com>
Cc:	Miguel Figueiredo <elmig@...ianpt.org>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	ck@....kolivas.org
Subject: Re: call for more SD versus CFS comparisons (was: Re: [ck]
	Mainline plans)

* Tobias Gerschner <tobias.gerschner@...il.com> wrote:

> it's a peacock freeliner xp II. Close to 5 year old Laptop with an 
> Athlon XP 2600+ using 1 GB of RAM / no swap enabled.
> 
> The other information will be sent as soon as I am back at work .

thanks! Here's another thing that would be worth testing:

could you pin the CPU's frequency to the highest setting (via whatever 
method of your choice, by selecting the 'performance' cpufreq governor 
for example). Plus could you do a test with the following additional 
kernel boot parameter: idle=poll. [both changes would exclude TSC 
related artifacts.] (This would be for testing only, to narrow down the 
regression.)

	Ingo
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