Re: [Xenomai] a question about ADEOS

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On 05/30/2012 05:57 PM, Lennart Sorensen wrote:
> On Wed, May 30, 2012 at 05:27:15PM +0200, Gilles Chanteperdrix wrote:
>> If the question is: why is not Adeos integrated in the mainline kernel ?
>> the answer is that the kernel community has chosen another solution to
>> enable real-time, and is not interested in integrating the Adeos patch.
> 
> As a user of adeos and xenomai, I do look forward to the day xenomai works
> with the other option so that a single scheduler can handle everything
> and give much better control over things.  But there is much work to be
> done before that happens as far as I can tell.

You can see for yourself with the xenomai-forge branch. It is already in
a usable state. I do not buy the scheduler argument: the linux scheduler
does pretty much the same separation between real-time and non real-time
tasks as the separation which happens with xenomai. And the scheduler
for real-time tasks is simple, it does not need to know much more than
the tasks priorities, I do not see what more you would like to control.

> 
> ipipe is an interesting solution, although not a particularly nice one.
> 

It depends on your definition of "nice". It ends up being a relatively
simple implementation which provides good latency results.

-- 
					    Gilles.