Guardian Procedure Calls Reference Manual

Considerations
• A caller of PRIORITY executing in privileged mode can set its priority to a value greater than
199. However, if such a process has a priority greater than that of the memory-manager
process and gets a memory page fault, the call to PRIORITY fails: a Guardian TNS process
gets a "no memory available" trap (trap 12); an OSS or native process receives a SIGNOMEM
signal.
• The current priority rather than the initial priority is returned. Due to the sliding priority feature
on NonStop servers, the current priority may be lower than the initial priority if the process is
processor-bound (that is, the process does not perform any I/O requests while running).
Example
LAST^PRI := PRIORITY ( 100 ); ! changes the current
! priority to 100.
PRIORITY Procedure (Superseded by PROCESS_SETINFO_ Procedure or PROCESS_GETINFOLIST_ Procedure) 981