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From: Michael Gerdau <mgd@technosis.de>
To: "Ray Lee" <ray-lk@madrabbit.org>
Cc: "Bill Davidsen" <davidsen@tmr.com>,
	"Linux Kernel M/L" <linux-kernel@vger.kernel.org>
Subject: Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48
Date: Sun, 20 May 2007 08:59:25 +0200	[thread overview]
Message-ID: <200705200859.56327.mgd@technosis.de> (raw)
In-Reply-To: <2c0942db0705192330r4004d7bem3556c939c1581553@mail.gmail.com>

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> > I don't want to say the values aren't useful. I simply think there is
> > a high noiselevel.
> 
> The noise is reflected in the standard deviation he has on those rows.
> The average +- stdev  of one overlaps the average +- stdev of the
> other,

For the fairness test on cfs13 this simply is wrong. And for the
test to be stable would require that avg of one is within avg+-stddev
of the other (simple overlap does not suffice).

Best,
Michael
-- 
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  reply	other threads:[~2007-05-20  7:00 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-19 20:02 Sched - graphic smoothness under load - cfs-v13 sd-0.48 Bill Davidsen
2007-05-19 20:22 ` Ray Lee
2007-05-20  0:44   ` Bill Davidsen
2007-05-20  6:12     ` Michael Gerdau
2007-05-20  6:30       ` Ray Lee
2007-05-20  6:59         ` Michael Gerdau [this message]
2007-05-20  7:20           ` Ray Lee
2007-05-20  6:55     ` Ray Lee
2007-05-21 18:27     ` Matt Keenan
2007-05-19 20:36 ` Diego Calleja
2007-05-19 20:55   ` Ray Lee
2007-05-19 23:21   ` Mike Galbraith
2007-05-20 16:29 ` Miguel Figueiredo
2007-05-20 16:44   ` Ray Lee
2007-05-20 16:58     ` Miguel Figueiredo
2007-05-20 17:19       ` Ray Lee
2007-05-22 17:55       ` Bill Davidsen
2007-05-22 20:01         ` Miguel Figueiredo
2007-05-23  0:28           ` Bill Davidsen
2007-05-23 13:10             ` Bill Davidsen
2007-05-23 18:29               ` Miguel Figueiredo
2007-05-23 20:45                 ` Bill Davidsen
2007-05-23 21:03                   ` Miguel Figueiredo
2007-05-24  0:36             ` Con Kolivas
2007-05-23  4:06               ` William Lee Irwin III
2007-05-23  5:23               ` Michael Gerdau
2007-05-23  7:58                 ` Xavier Bestel
2007-05-23  8:21                   ` Bill Huey
2007-05-23 18:22                   ` Ian Romanick
2007-05-23 18:43                     ` Xavier Bestel
2007-05-23 17:22                 ` Bill Davidsen
2007-05-23 16:59               ` Bill Davidsen
2007-05-22 17:22   ` Bill Davidsen

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