How to time any function

One key aspect during performance testing is to time how long a function takes to execute. In this small post, I will show how to create a generic timing function that takes as argument the function to time and shows the time to execute along with the output of the function:

/// <summary>

/// Times the execution of a function and outputs both the elapsed time and the function's result.

/// </summary>

static void Time<T>(Func<T> work)

{

    var sw = Stopwatch.StartNew();

    var result = work();

    Console.WriteLine(sw.Elapsed + ": " + result);

}

To call the time, use the following invocation style:

Time(() => DoSomeWork());