Is DateTime.Now the best way to measure a function's performance? [closed]

Answer 1

@Sean Chambers

FYI, the .NET Timer class is not for diagnostics, it generates events at a preset interval, like this (from MSDN):

System.Timers.Timer aTimer;
public static void Main()
{
    // Create a timer with a ten second interval.
    aTimer = new System.Timers.Timer(10000);

    // Hook up the Elapsed event for the timer.
    aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);

    // Set the Interval to 2 seconds (2000 milliseconds).
    aTimer.Interval = 2000;
    aTimer.Enabled = true;

    Console.WriteLine("Press the Enter key to exit the program.");
    Console.ReadLine();
}

// Specify what you want to happen when the Elapsed event is 
// raised.
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
    Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
}

So this really doesn't help you know how long something took, just that a certain amount of time has passed.

The timer is also exposed as a control in System.Windows.Forms... you can find it in your designer tool box in VS05/VS08