Some benchmarks on ARM

[Marc Kleine-Budde]

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     |
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