linux-kernel - Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28

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Message-Id: <1221307061.5213.115.camel@marge.simson.net>
Date:	Sat, 13 Sep 2008 13:57:41 +0200
From:	Mike Galbraith <efault@....de>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>
Subject: Re: [Bug #11308] tbench regression on each kernel release from 
	2.6.22 -&gt; 2.6.28

On Sat, 2008-09-13 at 13:44 +0200, Mike Galbraith wrote:

> 2.6.23.17-cfs-v24.1  (identical config)
> Throughput 1145.28 MB/sec 4 procs
> 
> 16384  87380  1        1       60.00    90278.55
> 16384  87380  1        1       60.01    90579.31
> 16384  87380  1        1       60.01    89412.14
> 16384  87380  1        1       60.00    90270.97
> 
> 2.6.24.7
> Throughput 1119.28 MB/sec 4 procs
> 
> 16384  87380  1        1       60.00    84092.78
> 16384  87380  1        1       60.00    84120.68
> 16384  87380  1        1       60.00    84076.73
> 16384  87380  1        1       60.00    83995.07

P.S. fwiw, scheduler difference between these two kernels is practically
nill.

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