[etherlab-users] Jitter + Timed Out datagrams

[Florian Pose]

On Tue, Mar 03, 2009 at 05:19:18PM +0100, Christian Gieseler wrote:
> As timing source i use the same sources that are given in your user
> and mini examples.

The minimal (kernel) example uses a kernel timer, that is usually not a
good timing source at all. The userspace example uses the setitimer()
function to generate SIG_ALRM signals, which has the same behaviour.
These two examples use on-board methods go create cyclic-tasks to get
something running without great efford. They're not meant to create
jitter-free cycles.

Do you have the possibility to try RTAI or an RT-preempt kernel?

-- 
Best regards,
Florian Pose

http://etherlab.org