From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Kurijn Buys <kurijn.buys@open.ac.uk>
Cc: Xenomai@xenomai.org
Subject: Re: [Xenomai] latency spikes under load
Date: Tue, 03 Dec 2013 13:31:43 +0100 [thread overview]
Message-ID: <529DCF2F.1070702@xenomai.org> (raw)
In-Reply-To: <40A5BE95-8E78-4CD6-81D2-C97AA7A58FBB@open.ac.uk>
On 12/03/2013 12:38 PM, Kurijn Buys wrote:
> Hardware: Pentium IV (lspci: 3,2GHz, i686, 32,64bit, 2 cpu's), 2Gb
> RAM Software: Ubuntu 10.04, kernel&patch 2.6.38.8, Xenomai 2.6.3
2.6.38 is rather old, could you try a more recent kernel like 3.8.13 to
see if you get the same problem?
> -I've set the SMI workaround by adding "xeno_hal.smi=-1" on the
> kernel command line
> (http://www.xenomai.org/documentation/xenomai-2.6/html/TROUBLESHOOTING/index.html#SMI),
> but maybe it makes a difference when it is set in the kernel config,
> as proposed here
> (http://www.xenomai.org/index.php/Configuring_x86_kernels), by
> setting the CONFIG_XENO_HW_SMI_WORKAROUND variable. However, I didn't
> find this variable in my kernel configuration...
Yes, the SMI workaround has changed from a compile-time option to a
run-time option, in order to avoid having to recompile the kernel to
change the option.
--
Gilles.
next prev parent reply other threads:[~2013-12-03 12:31 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-03 11:38 [Xenomai] latency spikes under load Kurijn Buys
2013-12-03 11:54 ` Gilles Chanteperdrix
2013-12-03 12:31 ` Gilles Chanteperdrix [this message]
2013-12-03 13:07 ` Kurijn Buys
2013-12-03 13:23 ` Gilles Chanteperdrix
2013-12-03 15:31 ` Kurijn Buys
2013-12-03 15:54 ` Gilles Chanteperdrix
2013-12-03 16:49 ` Kurijn Buys
2013-12-03 18:50 ` Gilles Chanteperdrix
2013-12-04 8:44 ` Philippe Gerum
2013-12-04 8:51 ` Gilles Chanteperdrix
2013-12-04 9:27 ` Philippe Gerum
2013-12-04 9:31 ` Gilles Chanteperdrix
2013-12-04 9:40 ` Philippe Gerum
2013-12-04 9:51 ` Gilles Chanteperdrix
2013-12-04 10:29 ` Philippe Gerum
2013-12-04 10:33 ` Philippe Gerum
2013-12-04 11:04 ` Philippe Gerum
2013-12-04 11:10 ` Gilles Chanteperdrix
2013-12-04 11:36 ` Philippe Gerum
2013-12-04 11:59 ` Philippe Gerum
2013-12-04 12:00 ` Gilles Chanteperdrix
2013-12-04 13:19 ` Philippe Gerum
2013-12-04 16:03 ` Gilles Chanteperdrix
2013-12-04 17:43 ` Philippe Gerum
2013-12-05 0:44 ` Kurijn Buys
2013-12-05 10:28 ` Kurijn Buys
2013-12-05 11:05 ` Philippe Gerum
2013-12-05 11:09 ` Gilles Chanteperdrix
2013-12-09 15:19 ` Kurijn Buys
2013-12-09 15:27 ` Gilles Chanteperdrix
2013-12-11 14:23 ` Kurijn Buys
2013-12-11 14:51 ` Lennart Sorensen
2013-12-11 16:04 ` Tobias Luksch
2013-12-11 17:21 ` Gilles Chanteperdrix
2013-12-11 16:44 ` [Xenomai] Analogy NI 6052E Kurijn Buys
2014-03-21 14:33 ` Erhart Robert (CC-DA/ESR3)
2014-03-22 16:58 ` Gilles Chanteperdrix
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