[SOLVED]linuxcnc Latency test ambiguous results

Have you tried isolating the CPU cores?

I have the same processor, but a different motherboard, and the results are better.

It is possible that your problem is caused by something other than delays, but it is worth trying to improve the result.

 

I was just going down that road, I found a post where it was talked about, For now I did this: but I would like to try to add: rcu_nocbs

can you share your lspci result?

 
this is with my new kernel parameter. Youtube and stress test on.

I have these kernel parameters set "quiet isolcpus=2,3 acpi_irq_nobalance noirqbalance irqaffinity=0 processor.max_cstate=0 intel_idle.max_cstate=1"
From what I remember, better results are when you isolate 3rd and 4th core.
The "stress" test should not affect core 3 and 4.

You have integrated VGA i have a NVIDIA 610 i think is this the cause of high latency , my motherboard don't have vga output!
can you try use Rustdesk remote desktop with youtube video and try another time latency test?

I don't use remote desktop. I did a test with three working youtube videos