Description of the illustration performance_addm

This is a screenshot of the ADDM page. At the top of the page is a horizontal graphical timeline of approximately the last 24 hours. The graph's vertical axis is labeled Active Sessions. Data is displayed as areas under a curve, where the areas are of three colors that represent database activities Wait, User I/O, and CPU. Beneath the horizontal axis is a horizontal series of small clipboard icons. Icons with check marks in them indicate the presence of findings. The graph currently pictured shows three peaks of activity. Beneath the largest peak, the checked clipboard icon is of a darker color than the others, indicating that the findings in the ADDM Performance Analysis section below the graph pertain to this period of peak activity.

The ADDM Performance Analysis section's main feature is a table of findings. The table has three columns: Impact (%), shown as a horizontal bar graph with a numeric percent figure to the right of each bar; Finding, which is a message shown as a link; and Occurrences (last 24 hrs), which shows values such as "3 out of 21". This value is also a hyperlink. There are ten findings, shown in decreasing order of impact. The Finding types are: Shared Pool Latches, Top SQL by DB Time, Undersized Shared Pool, PL/SQL Execution, I/O Throughput, Undersized Buffer Cache, Soft Parse, "Scheduler" Wait Class, Top Segments by I/O, and Top SQL By I/O.

End of description.