gistfile1.cs

class EventTimeTest 
{ 
  public event EventHandler StandardEvent; 
  public event EventHandler TrickyEvent = delegate { };

  public void Test() { 
    Stopwatch timer;
    EventArgs e = new EventArgs(); 
    for (int testCase = 0; testCase < 9; testCase++) { 
      int limit = (int)Math.Pow(10, testCase);
      timer = new Stopwatch(); 
      timer.Start(); 
      for (int iteration = 0; iteration < limit; iteration++) { 
        OnStandardEvent(e); 
      } 
      timer.Stop(); 
      
      double standardMs = timer.ElapsedMilliseconds; 
      double standardTicks = timer.ElapsedTicks;
      
      timer = new Stopwatch(); 
      timer.Start(); 
      for (int iteration = 0; iteration < limit; iteration++) { 
        OnTrickyEvent(e); 
      } 
      timer.Stop();

      double msDifference = standardMs != 0 ? timer.ElapsedMilliseconds/standardMs : 0; 
      double tickDifference = standardTicks != 0 ? timer.ElapsedTicks/standardTicks : 0;

      Console.WriteLine("{0}: MS Standard: {1} Tricky: {2} Difference {3}", limit, standardMs, timer.ElapsedMilliseconds, msDifference);
      Console.WriteLine("{0}: Ticks Standard: {1} Tricky: {2} Difference {3}", limit, standardTicks, timer.ElapsedTicks, tickDifference);
    } 
  }

  private void OnStandardEvent(EventArgs e) { 
    if (StandardEvent != null) StandardEvent(this, e); 
  }

  private void OnTrickyEvent(EventArgs e) { 
  TrickyEvent(this, e); 
  } 
}