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From: mkl@pengutronix.de (Marc Kleine-Budde)
To: linux-arm-kernel@lists.infradead.org
Subject: Some benchmarks on ARM
Date: Mon, 05 Jul 2010 14:45:34 +0200	[thread overview]
Message-ID: <4C31D3EE.7050407@pengutronix.de> (raw)
In-Reply-To: <4C31D30A.9010601@pengutronix.de>

Marc Kleine-Budde wrote:
> Colin Tuckley wrote:
>>> -----Original Message-----
>>> kernel-bounces at lists.infradead.org] On Behalf Of Robert Schwebel
>>> Sent: 02 July 2010 19:03
>>> We have recently made some benchmarks, in order to get a little bit
>>> better fealing about where ARM cpus are today, especially when it comes
>>> to the "recent" ones, and in comparism to the Atom. So we collected a
>>> few benchmarks (most from lmbench) and did some actual measurements.
>> You have the family wrong for (at least) the Cortex-A8, it's a v7. This probably accounts for some of it's slow relative performance since you probably used incorrect compiler switches.
>>
>>> All measurements have been done on 2.6.34.
>> How were the kernels compiled? Was thumb mode used for the ones that support it?
>>
>> You didn't mention the cache state anywhere - it can make a big difference.
> 
> After booting all tests are done via ssh, the system was "idle" otherwise.
> 
> We're just repeating the tests with "echo 1 > /proc/sys/vm/drop_caches"
> prior to each test.

We'll use "sync; echo 3 > /proc/sys/vm/drop_caches"

Marc
-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |

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  reply	other threads:[~2010-07-05 12:45 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-02 18:02 Some benchmarks on ARM Robert Schwebel
2010-07-02 20:34 ` Magnus Lilja
2010-07-05 12:24   ` Marc Kleine-Budde
2010-07-05 14:00     ` Russell King - ARM Linux
2010-07-05 15:14       ` Måns Rullgård
2010-07-03  5:44 ` Nicolas Pitre
2010-07-05 13:04   ` Maurus Cuelenaere
2010-07-05 13:23     ` Robert Schwebel
2010-07-05 13:31       ` Mike Rapoport
2010-07-05 13:42         ` Robert Schwebel
2010-07-05 14:15           ` Nicolas Pitre
2010-07-06  5:36             ` Mike Rapoport
2010-07-05 13:53         ` Marek Vasut
2010-07-06 14:02       ` Pavel Machek
2010-07-03 19:48 ` Baruch Siach
2010-07-03 20:08 ` Gilles Chanteperdrix
2010-07-03 20:28   ` Russell King - ARM Linux
2010-07-04  9:47     ` Gilles Chanteperdrix
2010-07-05  8:51 ` Colin Tuckley
2010-07-05 12:29   ` Marc Kleine-Budde
2010-07-05 12:41   ` Marc Kleine-Budde
2010-07-05 12:45     ` Marc Kleine-Budde [this message]
2010-07-29 16:54 ` Robert Schwebel
2010-07-30 10:19   ` Richard Cochran
2010-07-30 11:40     ` Gilles Chanteperdrix
2010-08-19  5:36 ` shiraz hashim
2010-08-19  6:28   ` Robert Schwebel
2010-08-19  7:10     ` shiraz hashim
  -- strict thread matches above, loose matches on Subject: below --
2010-07-30 14:47 Tomasz Stanislawski

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