Adjusting sequential buffers

You can:

• Code an SBPARM control statement with the BUFSETS keyword
• Use an SB Initialization Exit Routine

Once you have changed the number of buffer sets, you can use the SB Test Utility to reprocess the SB buffer handler call sequence that was issued during your program's execution. Then you can study the resulting //DFSSTAT reports to see the impact of the change.

Related reading:

• The Sequential Buffering Summary report and the Sequential Buffering Detail reports are described and instructions on how to use the SB Test Utility are in IMS Version 15.3 Database Utilities.
• Detailed instructions on how to code an SBPARM control statement are in IMS Version 15.3 System Definition.
• Details on the SB Initialization Exit Routine are in IMS Version 15.3 Exit Routines.