Counter Timeline Settings

The Counter Timeline Settings provide Preferences and Counters controls.

Preferences

Use these controls to adjust the display settings and the Counter Timeline scaling.

Intel® Trace Analyzer

In the  Display group, configure the Counter Timeline with the following controls:

Setting

Impact

Time Scale

Display the time scale along the x-axis

Vertical Scale

Display the time scale along the y-axis. By default, this option is enabled so that you can see the scale.

Legend

Show the legend in the right margin of the timeline. It is also enabled by default.

Adjust graphics to legend height

Make the size of the diagram large enough to show all legend items

Single Diagram/Many Diagrams combo-box

Select either a single diagram for all selected counters and target group children or a separate diagram for each target group child

 

Vertical Scaling offers selection between the Automatic Scaling (per Diagram), Automatic Scaling (Global) and the Manual Scaling of the y-axis. To specify explicitly the minimum and maximum scale values, choose Manual Scaling. When visually comparing two or more Charts in the same or distinct Views, specify the same bounds for all charts.

Counters

There are seven entries for each trace file counter. The top level entry for each counter shows the counter Name, its Unit, the target Process Group, and Attributes. The name and the unit are arbitrary, free-format strings defined in the trace file.

Intel® Trace Analyzer

The column Process Group contains the counter target group. A counter that has different values for each process has the target group All_Processes, while a counter that has a distinct value for each SMP node belongs to the target group All_Nodes.

The column Attributes can contain either the Integer or Double attribute, indicating the counter type. And Valid BEFORE Point, Valid AFTER Point, Valid AT Point or Curve attributes to indicate the counter scope. For example, curve indicates that it is meaningful to interpolate values between two given counter values. The attribute Show Rate indicates that it is preferable to display the derivation to time instead of the plain counter values.

Under the top-level counter entry, there are six entries for the minimum, average and maximum values and for the minimum, average and maximum rates, which you can switch on and off independently. If you just check the top-level box with the name of the counter, either the average value or average rate is chosen depending on the counter attributes.

For more complete information about compiler optimizations, see our Optimization Notice.