Page Set Statistics workspace (z/OS systems only)

The Page Set Statistics workspace is available on z/OS® systems only.

The Page Set Statistics workspace shows the performance of the page sets associated with the selected queue manager or buffer pool ID. Use it to monitor page and buffer pool usage.

The IBM® MQ Monitoring agentalso provides recent and historical versions of this workspace. You can view a recent snapshot of the report data or up to 24 hours of historical data for each workspace component.

Predefined views

The Page Set Statistics workspace includes the following predefined views:

  • Page Set Statistics Detail This view shows the performance of the page sets associated with the selected queue manager or buffer pool ID. Use it to monitor the following conditions:
    • Examine the percentage of pages in use and the total number of extents to ensure that no page sets are reaching capacity.
    • Examine the number of buffers from the buffer pool that are in used. If it is common for all buffers from the pool to be in use and a page set is responsible for most activity, then performance will adversely affected. Try increasing the size of the buffer pool or assigning the page set to another buffer pool.
  • Page Set Statistics Summary This view shows, as a bar chart, the highest and average percentages of the Page Set in use on the selected queue manager over the sampling period.
  • Page Set Utilization This view shows, as a bar chart, page set utilization for the page set IDs associated with the selected queue manager.

For more information on the attributes listed in the tables of this workspace, see Page Sets attributes (z/OS systems only).

Predefined links

You can link to the following workspaces from the Page Set Statistics workspace:

  • Queue Statistics
  • Recent Page Set Statistics
  • Historical Page Set Statistics