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I'm trying to change priority of processes so the games I play have a higher priority for performance reasons, but I cant figure it out how to that. I've done some searching and found that you have to change the programs "nice" value (or something like that), however I always get lost and confused when following their explanations.

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To change priority of a process, open system-monitor with root privileges. But if you are using Ubuntu 18.04+, GNOME system monitor which is installed by default is a snap package which fails to open with root privileges. So, install gnome-system-monitor` from APT first. Run:

sudo snap remove gnome-system-monitor
sudo apt install gnome-system-monitor

Run GNOME System Monitor with root privileges:

sudo -H gnome-system-monitor

Right click on the process for which you want to change priority.

Screenshot GNOME system monitor

  • @tacocat If you found the answer helpful, you can mark the answer as accepted. – Kulfy Feb 7 at 7:14

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