From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Jakub Nowacki <j.s.nowacki@domain.hid>
Cc: Xenomai help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] Xenomai on i7-870
Date: Mon, 20 Jun 2011 19:43:55 +0200 [thread overview]
Message-ID: <4DFF86DB.1090003@domain.hid> (raw)
In-Reply-To: <4DFF664C.5030504@domain.hid>
On 06/20/2011 05:25 PM, Jakub Nowacki wrote:
> On 06/20/2011 04:02 PM, Gilles Chanteperdrix wrote:
>> To make proper benchmarks, you should:
>> - let the latency run long
>> - provide some load, you can use the dohell script in xenomai-head to
>> generate the load.
>>
> I've generated a load using 'dd if=/dev/zero of=/dev/null' one for each
> core (8 in total), which is roughly the way how xeno-test does it. The
> test was running for 30 min, which is not very long but I should see the
> long latencies by that time, I think at least.
xeno-test adds many more way to generate load, which you should use if
you intend to have good results (I mean, really pessimistic ones). If
you do not have time to run LTP completely, you can use hackbench for a
few hours.
--
Gilles.
next prev parent reply other threads:[~2011-06-20 17:43 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-16 9:18 [Xenomai-help] Xenomai on i7-870 Jakub Nowacki
2011-06-16 10:37 ` Gilles Chanteperdrix
2011-06-17 14:05 ` Jakub Nowacki
2011-06-17 19:00 ` Gilles Chanteperdrix
2011-06-17 19:44 ` Gilles Chanteperdrix
2011-06-17 19:52 ` Jakub Nowacki
2011-06-18 15:17 ` Gilles Chanteperdrix
2011-06-20 14:34 ` Jakub Nowacki
2011-06-20 15:02 ` Gilles Chanteperdrix
2011-06-20 15:25 ` Jakub Nowacki
2011-06-20 16:16 ` Philippe Gerum
2011-06-20 17:34 ` Gilles Chanteperdrix
2011-06-20 21:30 ` Jakub Nowacki
2011-06-20 22:54 ` [Xenomai-help] Xenomai beagleboard xm ethernet not working David Wiebe
2011-06-21 6:54 ` Gilles Chanteperdrix
2011-06-21 8:18 ` David Wiebe
2011-06-21 8:38 ` [Xenomai-help] Xenomai beagleboard xm ethernet working! David Wiebe
2011-06-21 10:37 ` Gilles Chanteperdrix
2011-06-20 17:43 ` Gilles Chanteperdrix [this message]
2011-06-17 19:48 ` [Xenomai-help] Xenomai on i7-870 Jakub Nowacki
-- strict thread matches above, loose matches on Subject: below --
2011-06-16 9:19 Jakub Nowacki
2011-06-13 10:44 Jakub Nowacki
2011-06-13 17:43 ` Gilles Chanteperdrix
2011-06-13 19:06 ` Jakub Nowacki
2011-06-14 5:58 ` Jan Kiszka
2011-06-14 11:18 ` Jakub Nowacki
2011-06-14 11:30 ` Jan Kiszka
2011-06-15 16:21 ` Jakub Nowacki
2011-06-15 16:51 ` Gilles Chanteperdrix
2011-06-15 20:43 ` Jakub Nowacki
2011-06-16 7:01 ` Gilles Chanteperdrix
2011-06-16 8:52 ` Pavel Machek
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