tldr/pages/linux/renice.md

renice

Alter the scheduling priority/niceness of running processes. Niceness values range from -20 (most favorable to the process) to 19 (least favorable to the process). See also: nice. More information: https://manned.org/renice.

• Set the absolute priority of a running process:

renice --priority {{3}} {{[-p|--pid]}} {{pid}}

• Increase the priority of a running process:

sudo renice --relative {{-4}} {{[-p|--pid]}} {{pid}}

• Decrease the priority of all processes owned by a user:

renice --relative {{4}} {{[-u|--user]}} {{uid|user}}

• Set the priority of all processes that belong to a process group:

sudo renice {{-5}} {{[-g|--pgrp]}} {{process_group}}