Call Count

Enable the stack collection for the hardware event-based sampling analysis and configure the Intel® VTune™ Amplifier to statistically approximate the number of calls to sampled functions.

1. Click the New Analysis button on the VTune Amplifier toolbar.

   The New Amplifier Result tab opens with the Analysis Type window active.

2. In the Analysis Type window, select any of the following analysis types:
   • Algorithm Analysis > Advanced Hotspots and select Hotspots, call counts, stacks and context switches or Hotspots, call counts, loop trip counts, stacks and context switches collection level.

   • Custom Analysis > hardware event-based sampling analysisand select the Estimate call counts option.

   The configuration pane opens on the right.

3. From the Collection level options,
4. Click the Start button on the right to run the analysis.

   VTune Amplifier collects the data statistically estimating the number of calls to each function and provides the analysis data in the Estimated Call Count column in the Hotspots viewpoint.