Re: [LAU] OS for realtime operation

On 01/12/2012 09:44 PM, Raffaele Morelli wrote:
> 2012/1/13 david <gnome@email-addr-hidden <mailto:gnome@email-addr-hidden>>
>
> On 01/12/2012 06:15 AM, tee wrote:
>
> Hello,
>
> On 10/01/2012 13:44, Paul Davis wrote:
>
> 2) the PREEMPT_RT kernel is substantially "more realtime"
> than any
> version of windows or OS X that you could lay your hands on.
> its more
> like an actual realtime OS than the kind of general purpose
> OS that
> regular Linux, Windows and OS X represent, though without
> actually
> being suitable (quite) for "hard RT" tasks.
>
>
> if someone needs such a kernel for debian, they are available at
> http://pengutronix.de/ software/linux-rt/debian_en. html
> <http://pengutronix.de/software/linux-rt/debian_en.html>
>
>
> I tried that once. Booting it just led to panics. I decided it
> didn't like my hardware for whatever reason.
>
> I'm doing ok with the stock Debian Sid kernel, but I don't need
> latency as low as others might.
>
>
> Just to spread some KISS :-)
> Compiling a debian RT kernel is quite straightforward.
>
> Download debian sources or vanilla ones from kernel.org <http://kernel.org>
> Patch according to your release (
> http://www.kernel.org/pub/linux/kernel/projects/rt/ )
>
> Run `make oldconfig` inside the sources dir, you will probably be asked
> about configs in the newer kernel not found in .config-YOUR_RUNNING_KERNEL
>
> Then follow the common workflow, run `make menuconfig`, at least change
> only the PREEMPT opt and seti it to 'complete preemption'.
>
> Create your linux-image debian package with make-kpkg
> (http://www.debian.org/releases/stable/i386/ch08s06.html.en)
>
> If your running kernel works this one will too 99.9%
>
> my 0.02€
> regards
> -r

Thanks, but I don't need to compile a kernel to meet my RT needs.

-- 
David
gnome@email-addr-hidden
authenticity, honesty, community
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