jitter

When I use the utility to check for latency, jitter, etc the number will sometimes be in the 9000 range for an entire session. Other times it will start and remain in the 27,000 range or jump to the high value after being in the 9000 range for a few minutes.

I am not a complete newbie at all this, but I can find no other process that is jumping in the way or can I find one to shut down that makes a difference. 4 processors, lots of memory.

Suggestions or references please

JC

Hi

See this FAQ re some latency solutions

www.linuxcnc.org/index.php/english/forum...me-latency-solutions

The figure you are talking about is a cumulative one so is no good for any sort of diagnostic
Use the realtime latency test described in the FAQ and see where the spike occurs

If you are using 4 processors you will not get good latency, as is discussed in the preceding FAQ

www.linuxcnc.org/index.php/english/forum...-the-latency-problem

Look at the isolcupus method of isolating all but one core, links in the FAQ

regards