On Sat, 12 Feb 2022 at 00:07, Andy Howell <a...@gamubaru.com> wrote: > Its no pretty. Jitter is about 80000. I had a look through bios > settings, but nothing jumped out at me. > > Any ideas to improve it?
Which realtime system did you use? (at a guess, preempt-rt?) Are you planning to use the parallel port? If not, then 80k is usable. It _might_ be SMI. Is the latency generally good, with a regular crazy excursion? Try "latency-plot" from the command line to check this. If you see a periodic spike every 64 seconds, then SMI is likely, but that generally is a lot worse than 80k. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users