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An operative set is a way of looking at a collection of events on a table and that are related by user-defined characteristics. By using an operative set, you can view events occurring on just selected components of a recording, rather than having to filter through events that you deem unimportant to the investigation. You can create an operative set from data on all Java Flight Recorder tables and from the Graph Tab in the Events tab group.
To Add Items to the Operative Set:
Place your pointer over a line of data on table or, on the Graph Tab, a thread or thread label and right-click to display a context menu. On the Graph Tab, If you want to select a group of threads, do one of the following:
To select a group of contiguous threads, right click the first thread you want to select, hold down the Shift key, and click the last threads you want to select.
To select non-contiguous threads, hold down the Ctrl key and right-click each thread you want to include.
On the context menu, select Operative Set.
A context submenu appears, listing the actions you can perform with the operative set.
Select the action you want to perform with the selected data, as described in Table: Operative Set Menu Selections.
Operative Set Menu Selections
To... | Select... |
---|---|
Add a selected set of data. |
Add Selection |
Add events that happened at the same time on the same thread. |
Add Concurrent |
Remove an individual thread, a selected set of threads, or event types. |
Remove Selection |
Set the selected set of data as the operative set (removing the old operative set). |
Set Selection |
Remove all threads or event types from the operative set. |
Clear |
When you add a data to the operative set, the Range Navigator shows the impact of the set on overall activity by changing the color of their repesentation as a portion of the overall events, as shown here:
As indicated by the legend in this example, the blue portion of the events represents those occurring on the data in the operative set.