How can I determine how much memory a process is using in AIX?

Question

How can I determine how much memory a process is using in AIX?

Answer 1

Have you tried topas? It's pretty good for that sort of thing.

You can also try nmon but it's third party, so you'll have to download and compile it.

Answer 2

You can see memory usage with:

ps v PID

where PID is the process ID you are checking.

You can find info about the variables displayed here: http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.prftungd/doc/prftungd/mem_usage_determine_ps.htm

You will be more interested in SIZE (Virtual size in paging space in kilobytes of the data section of the process) and RSS (Real-memory size in kilobytes of the process)

Answer 3

Have you tried:

ps -p PID -o command,size

where PID is the process ID that you're interested in?