priocntl(2) manages the scheduling parameters of a process or set of processes. An invocation of priocntl(2) can act on a LWP, on a single process, or on a group of processes. A group of processes can be identified by parent process, process group, session, user, group, class, or all active processes. For more details, see the priocntl man page.
The PC_GETCLINFO command gets a scheduler class name and parameters when given the class ID. This command enables you to write programs that make no assumptions about what classes are configured.
The PC_SETXPARMS command sets the scheduler class and parameters of a set of processes. The idtype and id input arguments specify the processes to be changed.