run "tprof -x sleep 60", then look at the __prof.all file to see CPU use for 60 seconds, in 1/100th of a second ticks.
This can't be viewed in real time, but it might meet your capturing needs while topas or nmon allow real time observation.
Rod Knowlton
IBM Certified Advanced Technical Expert pSeries and AIX 5L
CompTIA Linux+
CompTIA Security+