The latest released Armbian kernel did only slightly better. Its MAX latency value was still over 3.6 msecs, however it took much longer to manifest itself. Experts on cyclic test suggest that you have to run this tool for long runs to be sure you flushed out any problems with jitter, I have seen 10...

This test tool, cyclictest , is yielding abysmal results. The latency response times for a couple of the CPUs out of the 4 we know about in the H5 are over 4.7 msecs. These numbers should be under 100 usecs as a maximum. So far I have tried both the friendlyarm kernel and one I built froma 5.1 mainl...