linuxcnc 2.9.2 (live) on the intel n100 cpu

I recently got a n100 mini-pc. Specifically the Firebat T8 Plus from aliexpress.
It comes with an intel n100 cpu, 512g nvme ssd,16g ddr5 ram, dual gigabit lan ports, wifi & BT. all working out of the box with the linuxcnc 2.9.2 live iso.
Attached is the latency test I ran. Youtube was also playing at 1080p in the background.
Priced at about the same as a pi5 (or even cheaper) and with better specs. Also cheaper, smaller and less power hungry than building a new PC.
Seems like the way to go right now for Mesa card users.



 

Latency is pretty bad, so try disabling Hyperthreading in BIOS first, then everything with power saving and C states.
Do latency tests with
latency-histogram --nobase --sbinsize 1000 --show
That will show the excursions you se as colored lines on both sides of the histogram.
Also have a look at this:
forum.linuxcnc.org/38-general-linuxcnc-q...ead-and-irq-affinity

Pretty bad? I thought it was good result. This is perfectly fine for use with a mesa card in my experience.

Dunno if it's bad but certainly not what you'd expect from a Q1 '23 Intel 4-cores 6mb cache release for sure. Wtf went wrong with Intel... pretty sure we'll all be scoring superior processing pwr with Chinese RISC-V for twice less in a year at this down-slope rate. 

For comparaison here's an ice-age medieval antiquated expired dual core $15.00 PC a.k.a. worst performer I can find in the shop atm. 

image missing https://i.postimg.cc/hGY39GLZ/coreduo.jpg

Mind doing this all over again? But with the following isocpus. I'd really appreciate it because I'm actually looking into those dual-ethernet industrial PC myself at this very moment. Although I was advised by a Lcnc hardware seller to score an Intel J6426 (for whatever reason he had, I wouldn't know). The N100 is also an option but rather questionable after seeing your perf. Try isolating 2 cores and give it a chance, that'd be cool. Thanks.

Results looks about the same to me.
Actually a little worse with the core isolation(62.2us). The second image (33.6us) is which a bunch of stuff disabled in the bios as tommylight suggested. Probably not everything. Speedstep, virtualization, c-states have been disabled.