HeadlessTestsExecutionTests.cs

private void Profile(string testResultsFileName, int iterations, Action actionToProfile)
{
    var desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
    var resultsPath = Path.Combine(desktopPath, "BenchmarkTestResults", 
                                   string.Concat(testResultsFileName, "_", Guid.NewGuid().ToString(), ".txt"));
    var writer = new StreamWriter(resultsPath);

    GC.Collect();
    GC.WaitForPendingFinalizers();
    GC.Collect();

    var watch = new Stopwatch();
    watch.Start();
    for (var i = 0; i < iterations; i++)
    {
        actionToProfile();
    }
    watch.Stop();
    writer.WriteLine("Total: {0:0.00} ms ({1:N0} ticks) (over {2:N0} iterations)",
        watch.ElapsedMilliseconds, watch.ElapsedTicks, iterations);
    var avgElapsedMillisecondsPerRun = watch.ElapsedMilliseconds / iterations;
    var avgElapsedTicksPerRun = watch.ElapsedMilliseconds / iterations;
    writer.WriteLine("AVG: {0:0.00} ms ({1:N0} ticks) (over {2:N0} iterations)",
        avgElapsedMillisecondsPerRun, avgElapsedTicksPerRun, iterations);
    writer.Flush();
    writer.Close();
}