I ported the backfire tool in the OSADL site
[https://www.osadl.org/backfire-4.backfire.0.html] to measure the user to/from
kernel latency.I wanted to measure the difference between the RT_PREEMPT kernel
and Xenomai Kernel. Surprisingly i see RT_PREEMPT performance better than
Here are few points to note:
1. The thread priority of the "sendme" tool of backfire in RT_PREEMPT is 99
2. I have made the thread priority 99 for the rt_task that i spawn [par of
ret = rt_task_shadow(&rt_task_desc, NULL, 99, 0);
* I wanted to know if any one has done such measurements using backfire and how
dose Xenomai fair agnist RT_PREEMPT?
* is there any similar tool like backfire in the Xenomai tool set that dose the
* Do I need to do more Xenomai specific optimization in the "sendme" and
"backfire" code to get better performance?
Thanks - Krishna
Xenomai-core mailing list