how to get the CPU usage of a particular process in Solaris 10?

Question

Many applications are running on my Solaris server. I want to check the CPU usage for a particular application / process. So that I can tune the performance of the complete server.

Answer 1

You may want to try using the /usr/ucb/ps command rather than /usr/bin/ps (which tends to be the default for most users based on their path settings).

Try: /usr/ucb/ps aux | grep

Another thing to look at would be the /usr/bin/prstat command to show active process statistics.

Try: /usr/bin/prstat -a

The -a will show a summary of user process info too.

Answer 2

I would do a ps command and pipe it into grep to search for either the process name or the PID, whichever makes sense to you.

e.g. ps -o pid,pcpu,comm | grep 1234

where 1234 is the PID of the process you are looking for.

OR

ps -o pid,pcpu,comm | grep myProcess

where myProcess is the name of the process you are looking for.

You can also use the "top" command and order it by CPU% to watch processes "rise and fall" based on CPU utilization.