FodyTimeTest.cs

public static class MethodTimeLogger
{
    public static void Log(MethodBase methodBase, long milliseconds)
    {
    }
}

class Program
{
    [Time]
    static void TestMethod()
    {

    }

    static void Main(string[] args)
    {
        int numIterations = 100;
        long totalMillis = 0;

        for (int i = 0; i < numIterations; i++)
        {
            var stopwatch = Stopwatch.StartNew();

            for (int j = 0; j < 1000000; j++)
                TestMethod();

            stopwatch.Stop();
            totalMillis += stopwatch.ElapsedMilliseconds;
        }

        Debug.WriteLine(totalMillis / numIterations);
    }
}