For ISPF and TSO/E sessions

To set the delta mode for the session, use the DELTA command. The syntax is:

      .-ON--.   
>>-D--+-----+--------------------------------------------------><
      '-OFF-'   

When delta mode is in effect, certain fields in some reports, such as the processor (CPU) time in the ARD report, reflect values that show the change since the previous invocation of the report. The first request for the report will show the value RMF™ detects at that time; all subsequent invocations of the report will show only the change since the previous report.

Delta mode is set off when the session begins. You must enter D ON or D to set delta mode on for the session. Later, if you want to turn off delta mode, enter D OFF. All report fields that can reflect either session or delta values will then reflect session totals rather than changes.

The mode area indicates the current setting of the delta mode for the session (either Delta/Total for an ISPF session, or D/T for a TSO/E session).