Debian 9 post installation steps - Hortensie/CNC_x_axis_linuxcnc_mesa_5i25_7i76 GitHub Wiki

1. How to isolate cpu to improve latency

cd /etc/default

sudo nano grub

modify below line (cpu=0 will take lead)

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=1,2,3"

sudo update-grub

sudo reboot

after reboot you can re-check allowed list

cat/proc/$$/status/

2. How to check if mesa 5i25 is recognized, how to install mesaflash

`lspci | grep 5125` `sudo apt-get update` `sudo apt-get install mesaflash` `sudo make install`

3. How to check re-check if debian got real time kernel

Open the Synaptic Package Manager

search for linux-image and install linux-image-4.9.0.6-rt (Version depends when you check this guide)

reboot the pc

in a terminal type uname -a it should report back PREEMT RT

Linux d9-uspace 4.9.0-6-rt-amd64 #1 SMP PREEMPT RT Debian 4.9.82-1+deb9u3 (2018-03-02) x86_64 GNU/Linux

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