Page History
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The Activity tab was designed to answer questions such as, "What happened yesterday, as well as a month ago and a year ago?" and "What has been the performance level of my applications over time.".
Data in the Activity tab is available up to the last time slice that ended (information on the last minute is available in the Current tab). The Activity tab is usually the place to identify and investigate tuning problems.
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You can switch to a different time frame and view additional information on the selected entity that was collected for that time frame. Only the information in the subnodes sub-nodes of the entity you have selected is refreshed.
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| Item | Description |
|---|---|
| Devices in Use | List of devices used by DB2 database partition. Storage Statistics information is shown for each device. Selecting one of devices will present detailed information about the selected device in other components below. |
| Device <unit name> <device number>’s Cache Hits | Historical overtime graph of read, write, and combined cache hit ratio (%) of the selected device. |
| Containers and Tablespaces on Device <unit name><device number> | List of Containers and Table spaces stored on the selected device. |
| Device <unit name> <device number>’s Requests | Historical overtime bars graph for read and write requests for the selected device. |
| Device <unit name> <device number>’s Throughput | Historical overtime graph for Throughput (Mb/Sec) of the selected device. |
| Device <unit name> <device number>’s I/O Rate | Historical overtime graph for I/O rate (Sec/Req) on the selected device. |
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| Item | Description |
|---|---|
| In DB2 (Summed) | The In DB2 breakdowns over time. |
| Overall Activity (Summed) | The application’s application's overall activity including In DB2 over time. |
| Sessions | Number of sessions. |
| Compile and Recompile | The time the application spent for commits & recompiles over time. |
| Commits and Rollbacks | The time the application spent for commits & rollbacks over time. |
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| Item | Description |
|---|---|
| In DB2 (Summed) | The In DB2 breakdowns over time. |
| Overall Activity (Summed) | The application’s application's overall activity including In DB2 over time. |
| Sessions | Number of sessions. |
| Compile and Recompile | The time the application spent for commits & recompiles over time. |
| Commits and Rollbacks | The time the application spent for commits & rollbacks over time. |
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