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Displaying IMS Message Format Buffer Pool Statistics (RMFP)

Following are the fields found in the Message Format Buffer Pool Storage Part I:

Fixed

The amount of fixed space available for non-MFS definitions for this interval.

Dynamic FRE blks

The dynamic amount of space available for MFS definitions.

The fixed amount of space available for fetch request elements which anchor each block in the pool (the pool will only be partially filled if there are not enough FREs).

Dir Index Size

The fixed size of the directory index. The directory is searched after the FREs and $$IMSDIR are searched.

Dir Index Entries Tot Dyn Dir Size Dyn Dir

The fixed number of entries in the directory index. The total amount of space used for the dynamic directories.

An incore area IMS dynamically creates to manage MFS formats.

Dyn Dir Entries

The number of format blocks represented by the current dynamic directory.

Following are the fields found in the Message Format Buffer Pool Storage Part II:

Type Total Loading Immediate Fetch

The type of data in the column. The maximum amount of space for this pool. The average amount of space used for prefetch while loading.

The average amount of space used for immediate fetch while loading.

Prefetch Free Inactive

The cumulative number of prefetch I/Os. The average amount of space available.

The average amount of space which is inactive due to MFS blocks being in-core (For example, no longer used).

Following are the fields found in the Message Format Buffer Pool Requests:

Total Immed Fetch Prefetch Found in Pool

The cumulative number of total block requests. The cumulative number of immediate fetch block requests. The cumulative number of prefetch block requests. The cumulative number of blocks found within pool.

Immed Fetch Wait

The cumulative number of immediate fetch waits before prefetch completed.

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OMEGAMON II for DBCTL Historical Component (EPILOG) Reference Manual Version 510

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