roland Tollenaar wrote: > Hi > > I need to be educated a bit here if you don;t mind. > > arming up... > RTT| 00:00:01 (periodic user-mode task, 1000 us period, priority 99) > RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat > worst RTD| 29.333| 29.333| 31.847| 0| 29.333| > 31.847 RTD| 29.333| 29.333| 35.199| 0| 29.333| > 35.199 RTD| 29.333| 29.333| 33.523| 0| 29.333| > 35.199 RTD| 29.333| 29.333| 32.685| 0| > 29.333| 35.199 RTD| 29.333| 29.333| 34.361| 0| > 29.333| 35.199 RTD| 29.333| 29.333| 33.523| 0| > 29.333| 35.199 RTD| 29.333| 29.333| 33.523| > 0| 29.333| 35.199 RTD| 29.333| 29.333| 34.361| > 0| 29.333| 35.199 RTD| 29.333| 29.333| 32.685| > 0| 29.333| 35.199 RTD| 29.333| 29.333| 34.361| > 0| 29.333| 35.199 RTD| 29.333| 31.847| > 201.142| 0| 29.333| 201.142 RTD| 29.333| 59.504| > 205.333| 0| 29.333| 205.333 RTD| 29.333| 65.371| > 201.142| 0| 29.333| 205.333 RTD| 29.333| > 68.723| 201.980| 0| 29.333| 205.333 RTD| 29.333| > 64.533| 201.142| 0| 29.333| 205.333 RTD| 29.333| > 65.371| 204.495| 0| 29.333| 205.333 RTD| > 29.333| 52.799| 201.142| 0| 29.333| 205.333 RTD| > 29.333| 65.371| 204.495| 0| 29.333| 205.333 RTD| > 29.333| 35.199| 201.142| 0| 29.333| 205.333 > RTD| 29.333| 29.333| 34.361| 0| 29.333| > 205.333 RTD| 29.333| 29.333| 33.523| 0| 29.333| > 205.333 > ---|------------|------------|------------|--------|----------------------- >-- > > > What you see above (up to where max latecy jumps to 200) is the > behavior while my application is running but the node (rotary encoder) > is not moving so not sending any position signals. The moment I start > turning the encoder shaft the jump takes place. > > What does output of latency mean? Is the above result simply stating > that I have a crappy hardware structure and will never be able to > achieve better latency or does it tell me there is something wrong > with my application?
That is still to discover. Please change the priorities of your RT Tasks lower than 99 and run again, Alternatively, do it with rtcansend/rtcanrecv as I told you before. -- Sebastian _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
