On Monday, January 31, 2022 12:45:27 PM EST Steffen Möller wrote: > On 31.01.22 18:28, gene heskett wrote: > > On Monday, January 31, 2022 6:14:42 AM EST Steffen Möller wrote: > >> latency-test 1000000 5000000 > > > > And it works! > > This is great to hear! Thank you! This is 32bits now, right?
On the pi, yes, I think the wintel machines are too. The kernels they are running are VERY long in the tooth, from 3.something I think. > Where are > you at? North central West Virginia, near mile 99 of I-79. Now that I have the proper syntax, the rpi4b latency's for this kernel are amazing: Linux rpi4.coyote.den 4.19.71-rt24-v7l+ #1 SMP PREEMPT RT Thu Feb 6 07:09:18 EST 2020 armv7l GNU/Linux, I built just shy of 2 years ago, its reporting under 5 u-secs max jitter for both threads, and its pretty stable. And my lathe is moving very smoothly with the new 3 phase stepper servo's. I have not rebooted it back to bullseye to see if the v5.16.2-rt19 I built last week is any better. > Maybe Rod can compare with his 64bit findings. > > > The man page sorta needs help. > > Both the man page and the tool have problems. Found the man page here > https://github.com/LinuxCNC/linuxcnc/blob/master/docs/man/man1/latency-> > test.1 and yes, it is a bit minimalistic :) I think the way to go is > to fix the argument parsing when units are added, improve the --help > and then auto-generate the man page from that output. > > Sidenote - if you (or anyone else reading this) happen(s) to have the > leisure to contribute bits and pieces to the documentation then by all > means - please just make your pick in > https://github.com/LinuxCNC/linuxcnc/tree/master/docs/src. There is an > effort under way to crowdsource the translation to other human > languages on wetblate (https://hosted.weblate.org/projects/linuxcnc - > so far only the tools are covered, but documentation should arrive > soon, too) which ist motivated mostly from the idea to have all > languages synced as good as possible to the English original and give > the English all the best-possible freedom to evolve without the burden > to keep other languages updated. I happily help with technical bits on > gitlab. > > Best, You too Steffen. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
