Joined: 06 Jun 2008 Posts: 8220 Location: Dubuque, Iowa, USA
Look at the Systems Management Facility (SMF) data. SMF data contains details about things executing on the mainframe. However, be aware that unless your site uses an interpretation tool such as MXG or MICS, it can be very difficult to get meaningful data out of SMF. There are over 100 record types and in some cases records have to be summarized to generate a true picture of the application resource usage.