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Visual Studio Team System

How to: Choose Sampling Events

A sample event is used to collect performance data at the specified interval. The following sample events are available:

  • Clock cycles - for CPU bound problems

  • Page faults - for memory related problems

  • System calls - for I/O related problems

  • Performance counter - for low-level performance problems

To select a sample event

  1. In Performance Explorer, right-click the performance session, and then click Properties.

  2. In the Property Pages, click the Sampling properties.

  3. From the Sample event drop-down list, select the sample event you want to use for profiling your application.

    NoteNote:

    The Available performance counters are enabled only if you select Performance counter from the Sample event drop-down list.

  4. If you select Performance counter, select a specific counter from the Available performance counters tree view control.

  5. When you select a sample event, a default sampling interval value is displayed in the Sampling interval text box. If necessary, you can enter the value that you want in the text box.