# 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: . - 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}}`