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

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Message-ID: <20070612140407.GA19543@elte.hu>
Date:	Tue, 12 Jun 2007 16:04:07 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Tobias Gerschner <tobias.gerschner@...il.com>
Cc:	Miguel Figueiredo <elmig@...ianpt.org>, ck@....kolivas.org,
	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: call for more SD versus CFS comparisons (was: Re: [ck]
	Mainline plans)


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

> The output of massive_intr can be found here :
> http://www.yoper.com/scheduler-test/

here's the spread of the massive_intr results (the average 'jitter' of 
the second column of the results - lower values are indicating more 
stable / more fair massive_intr results, in percentage):

               CFS         SD
            ----------------------
     10:       0.02       0.55
     20:       0.21       0.78
     30:       0.26       0.95
     40:       0.27       1.46
     50:       0.37       1.24
     60:       0.37       0.92

but of course i'm primarily interested is the observed difference in 
interactivity :-)

	Ingo
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