View source for ALTPRI

The '''ALTPRI''' privilege allows the user's process to:
* Increase its own [[Base Priority|base priority]]
* Set the base priority of a target process
* Change the priority of its [[Batch Job|batch]] or [[Print Job|print jobs]]

The base priority is increased by executing the [[$SETPRI|Set Priority ($SETPRI)]] system service or the DCL command SET PROCESS/PRIORITY. As a rule, this system service lets a process set its own base priority or the base priority of another process. However, one process can set the priority of a second process only if one of the following conditions applies:
* The process calling the $SETPRI system service has the same UIC as the target process.
* The calling process has process control privilege (GROUP or WORLD) over the target process.

With ALTPRI, a process can create a detached process with a priority higher than its own. It creates such a process by using an optional argument to the [[$CREPRC|Create Process ($CREPRC)]] system service or to the DCL command RUN/PRIORITY.
ALTPRI also lets you adjust the scheduling priority of a job ([[$SNDJBC]]) to a value even greater than that established with the system parameter MAXQUEPRI.
Do not grant this privilege widely; if unqualified users have the unrestricted ability to set base priorities, fair and orderly scheduling of processes for execution can easily be disrupted.

[[Category:System Privileges]]