From mboxrd@z Thu Jan  1 00:00:00 1970
From: rick.jones2@hp.com (Rick Jones)
Date: Thu, 21 Nov 2013 15:23:09 -0800
Subject: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
In-Reply-To: <87txf54b76.fsf@natisbad.org>
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 <20131119184121.GN913@1wt.eu> <874n780wzc.fsf@natisbad.org>
 <20131120191145.GP8581@1wt.eu> <87txf692zx.fsf@natisbad.org>
 <20131120215435.GT8581@1wt.eu> <20131121004430.GX8581@1wt.eu>
 <871u298lv6.fsf@natisbad.org> <20131121215259.GE18513@1wt.eu>
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Message-ID: <528E95DD.3060209@hp.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 11/21/2013 02:55 PM, Arnaud Ebalard wrote:
> On the RN2120, for a file served from /run/shm (for apache and nginx):
>
>            Apache     nginx       netperf
> 131072:  102 MB/s   112 MB/s   941.11 Mb/s
>   65536:  102 MB/s   112 MB/s   935.97 Mb/s
>   32768:  101 MB/s   105 MB/s   940.49 Mb/s
>   16384:   94 MB/s    90 MB/s   770.07 Mb/s
>    8192:   83 MB/s    66 MB/s   556.79 Mb/s

If you want to make the units common across all three tests, netperf 
accepts a global -f option to alter the output units.  If you add -f M 
netperf will then emit results in MB/s (M == 1048576).  I'm assuming of 
course that the MB/s of Apache and nginx are also M == 1048576.

happy benchmarking,

rick jones