Historical Buffer Pool Performance workspace (z/OS systems only)

The Historical Buffer Pool Performance workspace is available on z/OS® systems only.

The Historical Buffer Pool Performance workspace is the historical version of the Buffer Pool Statistics workspace, and displays historical performance statistics for selected buffer pool. This workspace displays performance information about the buffer pools used by the selected queue manager on z/OS systems. Use it to analyze and compare queue manager buffering performance. Based on the information provided, you can recommend changes, set up situations, and verify that changes are improving performance.

Predefined views

The Historical Buffer Pool Performance workspace includes the following predefined views:

  • Historical Buffer Pool Performance The Historical Buffer Pool Performance view shows you the performance of the buffer pools used by the selected queue manager, displayed in descending order of date and time. You can select a buffer pool whose performance you want to review from this list.
  • Buffer Availability This view shows, as a bar chart, the number of buffers available in each buffer pool for use by the selected queue manager over the selected historical reporting period.
  • GetPage I/O This view shows, as a bar chart, the percentage of total GetPage I/O operations performed by each buffer pool used by the selected queue manager over the selected historical reporting period. Use this view to compare the percentages of GetPage I/O operations performed by different buffer pools used by the queue manager.

For more information on the attributes listed in the tables of this workspace, see Buffer Manager Long-Term History attributes (z/OS systems only).

Predefined links

No other workspaces can be linked to from the Historical Buffer Pool Performance workspace.