From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Grant <emailgrant@gmail.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] patch the kernel?
Date: Wed, 13 Nov 2013 16:02:43 +0100 [thread overview]
Message-ID: <52839493.4040300@xenomai.org> (raw)
In-Reply-To: <CAN0CFw203jRKLtMmb9jCQbyQnM1hmAaHr=FtonvxxcSUov8Ujw@mail.gmail.com>
On 11/13/2013 02:36 PM, Grant wrote:
> Is patching the kernel necessary in order to use xenomai?
It depends on which version of Xenomai you are talking about. If you are
talking about Xenomai stable version, then yes, you have to follow the
installation instructions here:
http://www.xenomai.org/documentation/xenomai-2.6/html/README.INSTALL/
Which include running the "prepare-kernel.sh" patch, which modifies the
kernel.
If you are talking about Xenomai current development version, a.k.a.
Xenomai forge, then it gives you the choice of running:
- on an unmodified kernel (but you will not have real-time guarantees);
- a kernel patched with the PREEMPT_RT patch;
- a kernel modified as with the stable version.
The current state of Xenomai forge is that it is stable enough on the
x86 and ARM architectures to run a latency test under load.
--
Gilles.
next prev parent reply other threads:[~2013-11-13 15:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-13 13:36 [Xenomai] patch the kernel? Grant
2013-11-13 15:02 ` Gilles Chanteperdrix [this message]
2013-11-13 15:10 ` Philippe Gerum
2013-11-14 12:31 ` Grant
2013-11-14 12:47 ` Gilles Chanteperdrix
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