AIX Command Tips

Displaying top CPU_consuming processes:
#ps aux | head -1; ps aux | sort -rn +2 | head -10
Displaying top 10 memory-consuming processes:
#ps aux | head -1; ps aux | sort -rn +3 | head
Displaying process in order of being penalized:
#ps -eakl | head -1; ps -eakl | sort -rn +5
Displaying process in order of priority:
#ps -eakl | sort -n +6 | head
Displaying process in order of nice value
#ps -eakl | sort -n +7
Displaying the process in order of time
#ps vx | head -1;ps vx | grep -v PID | sort -rn +3 | head -10
Displaying the process in order of real memory use
#ps vx | head -1; ps vx | grep -v PID | sort -rn +6 | head -10
Displaying the process in order of I/O
#ps vx | head -1; ps vx | grep -v PID | sort -rn +4 | head -10
Displaying WLM classes
#ps -a -o pid, user, class, pcpu, pmem, args
Determinimg process ID of wait processes:
#ps vg | head -1; ps vg | grep -w wait
Wait process bound to CPU
#ps -mo THREAD -p
Cpu usage with priority levels
#topas -P

#svmon -Put 10 will give the memory mapping for the
top ten memory consuming processes.

#top


Remember, some commands needs you to be root. So, you switch to su to root.
Two important things here -
1. from ur profile, if u say
$su root
takes you to root with current shell. Means that, though u r root, u still carry ur .profile and ur env variables.
2. if u want to have root's env variables -
su - root or
su root
after getting into root
. ./.profile