MPE/iX Shell and Utilities Reference Manual, Vol 2

nice(1) MPE/iX Shell and Utilities nice(1)

126 nice could not invoke command-line.

127 nice could not ﬁnd the utility speciﬁed in command-line.

Message

Message: command: not executable: system error

Cause: See syserror(3).

Action: See syserror(3).

Message: Not able to read/write process information

Cause: For some reason, the underlying MPE/iX routines were unable to read or write

process information.

Action: Contact your system manager.

PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0. All UNIX systems.

MPE/iX NOTES

Normally, the priority of an

MPE/iX process undergoes cyclical degradation. When the process

begins running, it has a high priority. As the process continues to run, this priority is lowered

until it hits the lowest point in the cycle. At this point, the priority begins to get higher and

higher until it hits the original high priority. The cycle then begins again. The nice com-

mand turns this degradation off and locks the process at the given priority.

Due to different priority bounds on

MPE/iX, the

MPE/iX implementation of nice lowers the

current priority by 1000 if neither –n number or –number are speciﬁed.

For more information on how the current

MPE/iX implementation may affect the operation of

this utility, see Appendix A, MPE/iX Implementation Considerations.