HP Visualize J210XC IRIX to HP-UX Migration Guide - Page 37

Managing Processes

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6. Managing Processes IRIX The ps Command IRIX and HP-UX both support the AT&T form of the ps command. For example, to print the process status for all processes, type: # ps -elf Priorities and Nice Values Both IRIX and HP-UX use nice to change the priority of a process. They also both use renice, getpriority, and setpriority to adjust the priority of processes on the system. Differences occur when you move into the realtime environment. In HP-UX the rtprio command is used to set the priority of a process to realtime status. For example: # rtprio 100 a.out sets the realtime priority of the process a.out to 100. This value may be set from 0 (highest) to 127 (lowest). Since all realtime processes take precedence over non-realtime processes, use care when changing a process to realtime status. Signals Like HP-UX, IRIX has two kill commands: /bin/kill and the kill built-in shell command. The signals for each differ. For example: # kill -l HUP INT QUIT ILL TRAP ABRT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM USR1 USR2 CHLD PWR WINCH URG POLL STOP TSTP CONT TTIN TTOU VTALRM PROF 32

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32
6. Managing Processes
IRIX
The ps Command
IRIX and HP-UX both support the AT&T form of the
ps
command.
For example, to print the process
status for all processes, type:
# ps –elf
Priorities and Nice Values
Both IRIX and HP-UX use
nice
to change the priority of a process.
They also both use
renice
,
getpriority
,
and
setpriority
to adjust the priority of processes on the system.
Differences occur when you move into
the realtime environment.
In HP-UX the
rtprio
command is used to set the priority of a process to realtime
status.
For example:
# rtprio 100 a.out
sets the realtime priority of the process
a.out
to
100
.
This value may be set from
0
(highest) to
127
(lowest).
Since all realtime processes take precedence over non-realtime processes, use care when
changing a process to realtime status.
Signals
Like HP-UX, IRIX has two
kill
commands:
/bin/kill
and the
kill
built-in shell command. The signals for
each differ. For example:
# kill -l
HUP
INT
QUIT
ILL
TRAP
ABRT
EMT
FPE
KILL
BUS
SEGV
SYS
PIPE
ALRM
TERM
USR1
USR2
CHLD
PWR
WINCH
URG
POLL
STOP
TSTP
CONT
TTIN
TTOU
VTALRM
PROF