DBSTATS control statement

The DBSTATS control statement activates the Database Tuning Statistics function.

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DBSTATS nnnnn

Position: Description
1: Code the DBSTATS keyword to instruct HSSR Engine to provide the Database Tuning Statistics report.
9: Specify the number of buffers to be simulated with this entry. Enter any number up to five digits in the range of 1 - 32767, left-aligned, and followed by a blank. If this entry is left blank, the default value of 4 is used.
HSSR Engine simulates the LRU algorithms of the IMS OSAM buffer pool and the IMS VSAM buffer pool to provide statistics of the number of I/O operations. If the application program uses multiple HSSR PCBs, HSSR Engine assumes that each PCB has its own dedicated buffer pool containing the user-specified or default number of buffers.

Restrictions:

If APISET 3 is specified, this statement cannot be specified.
If one or more partitions of PHDAM or PHIDAM are in the HALDB OLR cursor-active status, this statement is ignored.