6.4 Timeline view toolbar

ARM Streamline provides easy ways to navigate and modify the Timeline view using the toolbar.

The toolbar controls in the Timeline are:

Events-Based sampling tag
If the report was generated using event-base sampling, a label appears in the far left of the toolbar.

Figure 6-10 The Events-based sampling tag

The Events-based sampling tag

The tooltip that appears when you hover the mouse over the EBS tag tells you which counter you set as the basis for the events-based sampling and the threshold value.
Brings up contextual help in Eclipse.
Toggle bookmark markers
Activates or deactivates the bookmark markers in the Timeline view. If selected, Streamline places vertical lines that stretch across the charts and processes sections under each of your bookmarks.
Toggle HUD Display
Toggles the Samples HUD on and off.
X-Ray mode
Toggles x-ray mode on and off. When on, Streamline replaces the heat map in the Processes section with a color-coded map that shows which core or bigLITTLE cluster spent more time on a process or thread in the given increment. Blue in the Processes section means the first processor spent the most cycles, while turquoise indicates that the second processor did. Amber represents the third core and purple the fourth. There is a color legend in the bottom left of the Timeline view when X-Ray mode is enabled. In a single core system, all active areas in the Processes section are blue. Hover over a color in the processes for a tooltip that tells you which core the color represents.
Reset filtering
Reset the calipers. The calipers are the blue arrow controls at the top of the Timeline view that you can use to filter the statistics in the reports to an area of interest.
Select Annotation log...
Opens the Log view and selects the closest Annotation-generated message to the current position of the Cross Section Marker. This option is not applicable if you did not include ANNOTATION statements in your code.
Zoom in one level, Zoom out one level
Enables you to cycle through the levels of zoom. Use the plus and minus buttons to increase or decrease the units of time used to represent one bin in the Timeline view.

Figure 6-11 The zoom level drop-down menu

The zoom level drop-down menu

Time index marker
Shows the time index of the current location of the mouse cursor. The time index marker contains a drop down menu that enables you to specify the level of zoom for the Timeline view.
Filter process
Enter a regular expression in the field to filter the processes in the processes section of the Timeline view. For example, if you enter a standard string consisting only of letters, the processes section updates to include only [idle], [kernel], and any processes that contain the entered string. Regular expression strings are case sensitive unless you include (?i) in front of your search expression. The charts in the Timeline view update to display only activity from the remaining processes.
Export Timeline view to a text file
Opens the export dialog box, enabling you to export the data from the Timeline view. Values can be separated by spaces, commas, or tab delimiters, making it easy to save data as a separate file or to open it in your favorite spreadsheet application.
Related concepts
Timeline view overview
Timeline view charts
Timeline view processes section
Timeline view chart configuration
Visual Annotation in the Timeline view
Related tasks
Filtering using the caliper controls
Adding bookmarks to the Timeline view
Related reference
Timeline view contextual menu options
Timeline view keyboard shortcuts
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