Using the nice Interface

The nice command and the nice() function work as in previous versions of the UNIX system. These interfaces enable you to change the priority of a time-sharing process. You can use lower numeric values to assign higher time-sharing priorities with these interfaces.

You can change the scheduler class of a process or to specify a real-time priority by using the priocntl() interface. You can use higher numeric values to assign higher priorities.

For more information, see the nice(1), priocntl(2), and nice(2) man pages.