Re: [LAU] OS for realtime operation

2012/1/13 david &lt;gnome(a)hawaii.rr.com <mailto:gnome@hawaii.rr.com>> 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