Frank Meier wrote: > Ok, here's a self standing version. The included README has information on > how to run it. http://www.infoteam.de/downloads/temp/fme/benchmark.tar.gz > > In the meantime I found that the worst-case duration is nearly exactly the > period that is passed into rt_start_timer. > > In the test program, a single non-periodic task is used on both sender and > receiver (it is only paused when blocked on a rt_dev_recvfrom() call). But I > guess rtnet employs some periodic tasks whose execution period is dependent > on the period specified in rt_start_timer !?
RTnet definitely requires working timer services when running periodic tasks in RTcfg or RTmac/TDMA and if you assign timeouts to receive operations. Anything beyond that, including the precision of timestamps, is RTAI-specific. Jan
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