Antonio Del Cinque wrote: > Is there any way to track these kind of latency in the ipipe, a kind of > worst latency case tracker? I see only "virtual" IRQs 512 and 515 running in > Xenomai domain. I cannot see where they are set up. I guess one of them is > the system timer, and I know this is commonly driven by the powerpc > decrementer. Is the GPIO interrupt latency due to the system timer > interrupt? If this is the case, where can I disable the system timer in > Xenomai, or modify the interrupt routine? I must run in interrupt context > because of latency requirements (they asked me for deterministic latencies > under 20 uS).
Yes, there is the I-pipe tracer: http://www.xenomai.org/index.php/I-pipe:Tracer Xenomai latency test has a -f option which triggers a trace for the worst case. -- Gilles. _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
