Priority ranges

The following table displays the platform-specific priority range for RealTime, TimeSharing, and SRM scheduling (SHR) processes.

Priority ranges by platform

Platform

Scheduling Class

Default Priority Range

Weak / Strong

Priority Range Using #ps Commands

AIX 

RT 

TS 

126 / 52 

60 

 

126 / 52 

Priority varies with CPU consumption. 

Note   On AIX, use #ps -ael

HP-UX 

RT 

TS 

127 / 0 

N/A 

127 / 0 

N/A 

Note   On HP-UX, use #ps -ael

Linux 

RT 

TS  

1/99 

L- high priority task 

N- high priority task 

Note   On Linux, use #ps -el

Solaris 

RT 

TS 

SHR 

0 / 59 

-60 / 60 

-60 / 60 

100 /159 

N/A 

N/A 

Note   On Solaris, use #ps -ae -o pri, args