Is there a CA 7 command or report show the average durations of each run?
You can run a (HR04) or (HR05) to capture the elapsed time of jobs within a specific time frame. This is the 'Scheduled vs Actual Job Report SASSHR04, or Scheduled vs Actual Stations Report.' This information is in report format only. Additionally, the LJOB,JOB=XXXXXXXX,LIST=ALL can be entered to capture the average RUN-TIME of a job. CA 7 calculates the last 6 runs of a job for a running average.
For additional information, please refer to: https://support.ca.com/cadocs/7/CA%20Workload%20Automation%20CA%207%20Edition%2011%203-ENU/Bookshelf_Files/HTML/WA_SE_ReportRef_ENU/index.htm