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From: Jan Kiszka <jan.kiszka@domain.hid>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai@xenomai.org, Stuart O Anderson <soa@domain.hid>
Subject: Re: [Xenomai-help] Known-to-work motherboards?
Date: Thu, 12 Feb 2009 22:02:09 +0100	[thread overview]
Message-ID: <49948E51.9000509@domain.hid> (raw)
In-Reply-To: <499480EE.3040403@domain.hid>

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Gilles Chanteperdrix wrote:
> Stuart O Anderson wrote:
>> If there isn't a list online that I've missed, is anyone running
>> xenomai on a relatively recent machine with 8 or more cores without
>> problems?  If so, can you provide hardware specs?
> 
> Xenomai will have scalability problems when running on an 8 cores system
> (if you intend to run real-time tasks on each of the 8 cores).
> 

We are running Xenomai on up to 4x4 boxes, but only with 1 or 2 cores
used by RT tasks. I've some patch hanging around that restricts Xenomai
(specifically its host timer hook) to a CPU subset in order to mitigate
the scalability issues - guess I should finally get it in shape and post it.

However, my point is: Massive parallel RT is not (yet) feasible with
Xenomai, but it is no black magic to have massive parallel non-RT load
living together with confined RT load on the same box.

Jan


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  reply	other threads:[~2009-02-12 21:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-12 17:04 [Xenomai-help] Known-to-work motherboards? Stuart O Anderson
2009-02-12 20:05 ` Gilles Chanteperdrix
2009-02-12 21:02   ` Jan Kiszka [this message]
2009-02-12 22:10     ` Gilles Chanteperdrix
2009-02-12 22:24       ` Jan Kiszka
2009-02-12 22:27         ` Gilles Chanteperdrix
2009-02-12 22:59           ` Jan Kiszka

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