checking Processes

I have aix version 5.1
I was wondering how I can check all running processes?
I have used several ps commands but have been unsuccessful at it. I can see all with {ps aux } I have a little trouble knowing what I am looking for also. I should be looking at length of time and processor usage? I am wondering if I have a hung process.
Thanks
Dave

Normally I use "ps -ef" to list all processes what I can see as a normal user. But if you are root, you should see more processes depending on different OS and config.

By the way, I have a similar question that is:

How to list process with full executable file path? Answers for OS dependency is O.K. to me.

On Solaris

prstat gives a decent information about processes etc.
I am not sure if it is going to work on AIX or not

Thanks for getting me back on track. I used ps -ef and then I used it in conjunction with |grep filename .
Modemer I noticed that when I greped a file like that it showed the full path. I hope that helps you too.
Thanks