Delta processing mode

To activate delta processing mode, type DELTA on the command line of any statistics panel and press Enter. In delta processing mode, the values are accumulated between the last two times you pressed Enter. When delta mode is activated while viewing past data, delta processing uses the currently shown history time and the next available history snapshot to accumulate the values.

Use delta processing to isolate DB2® statistics activity that occurs between two specified points in time. Delta mode operates similarly to the Batch statistics trace. When you initiate delta mode, Db2 statistics field values are reported in time slices. A new base point is established each time the displayed values are updated. With the exception of the high water mark and snapshot fields mentioned previously, all statistics field values reflect the activity since the previous display update.

After delta is activated, all statistics panels operate in delta mode. The elapsed time since the last DELTA command was entered or since the last time Enter was pressed is displayed on the line under the heading as shown in the following figure:

Figure 1. Db2 Statistics Detail panel showing delta active

 DGOMSPSM 12:07             DB2 Statistics Detail            PMO1DLOC DSN1 V10
                                    GROUP001 MEMBER01
                                                             DELTA 9.182
 For details, type any character next to heading, then press Enter.

Delta mode remains active until you deactivate it or you return to the main menu. You can turn off delta mode using the RESET or INTERVAL command from any statistics panel.