LinuxCNC on Debian 10 Buster quick and easy install

Hallo Jörg,
Hab nie die isolcpu benutzt, dafur weis ich nicht was es tut fuhr latency.
I have never used isolcpu so i do not know what it does for latency.
Maybe someone else can shed some light.

Hi,

I reduced my latency/Jitter with the manual and isolcpus to a very low value... 10.000 permanently, unter load.

With Debian Buster I can use the "probe screen", but I have a very high latency/Jitter (200.000) without optimization.

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Hallo,

ich habe meinen Latency/Jitterwert mit der Anleitung dem Isolcpus Parameter auf ca 10.000 optimiert - über eine längere Zeit, unter Last.

Mit Debian Buster kann ich auch den Screen "Probe screen" installieren. Leider habe mein System ohne Optimierung einen Wert von ca 200.000 maximal. Das ist etwas zuviel

Best regards / Viele Grüße
Jörg

Hi,

i found something, which works (hope the link is ok)

wiki.altervista.org/cs/kernel_boot_parameters
Example of the "isolcpus" option

Open the file /etc/default/grub. Example:

sudo gedit /etc/default/grub

Edit the option GRUB_CMDLINE_LINUX_DEFAULT in the file /etc/default/grub to boot all the kernels with the new option. In this case, the kernel boot option isolcpus=2,3 has been used, on a 4 cores CPU, to boot the kernel (and the other OS processes) using CPU cores 0 and 1, while CPU cores 2 and 3 are isolated, i.e., not used.

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=2,3"

Run the command:

sudo update-grub

to make active the GRUB configuration at the next reboot.


With this, my latency is under 10t

Best regards
Jörg

does linuxcnc on debian 10 function as a controller or just simulation?

rudi wrote: does linuxcnc on debian 10 function as a controller or just simulation?

Controller and sim.

Probably a silly question but I am upgrading an i386 system from 2.7 to 2.9 in order to run the fancy plasmac config on my plasma gantry. I assume I should download an i386 iso rather than the recommended amd64 link?