linuxcnc 2.9.2 (live) on the intel n100 cpu

PCW wrote:

Did you try isolcpus=3

isolcpus 1,2,3 leaves only one CPU for non-realtime tasks so
would likely be painfully slow...

Funny enough, isolcpus=3 and all the BIOS settings disabled I mentioned in my previous post is the final setup I'm going with. It holds steady at low 20μs and am able to multitask fine.

One thing I want to mention though is I was curious what Macanix and gambaf meant in this thread about mozmck's irq affinity hack being necessary. I see what they are talking about now when I started testing the Mesa card. All the issues mentioned in mozmck's thread is what I ran into along with some other threads, but it is running great now after applying the script!

If this thing had a built in parallel port, I think this would be a great, modern LinuxCNC device!

The network drivers are not real time so delays can ocurr when syncing with a real time thread. Telling the network drivers to use the same core as the Linuxcnc real time core (3 in this case) using CPU affinity, is a well established work around for this by those in the RT community but relatively new to Linuxcnc.

Also don't forget to disable energy efficient Ethernet.