Commands to find memory utilisation of processes

To find memory usage, try these commands (may vary with version of UNIX):

# svmon -u | more
# svmon -P | more
# ps aux | more
# ipcs -ma | more

Command to find process which uses the most memory in AIX:

# svmon -P -t 1 (aix 4.3.3)
# svmon -Pau 1 (aix 4.3.2)

To find the memory utilisation of a certain proces:

# ps auwww [PID]

PID = process id 

Example:

svmon -u ; svmon -P ; ps aux ; ipcs -ma