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Calculate the execution time of a method in C#

To calculate the execution time in C# we can use System.Diagnostics.Stopwatch.StartNew() which initializes a new Stopwatch instance, sets the elapsed time property to zero, and starts measuring elapsed time, and stop Stopwatch object by using method Stop(); and finally return elapsed time in milliseconds using property ElapsedMilliseconds.


In below example we are using thread sleep to stop execution of application for 3000 millisconds.

using System;
using System.Threading;

public class Example
    public static void Main()
		var watch = System.Diagnostics.Stopwatch.StartNew(); // create stopwatch object

                Thread.Sleep(3000); // You don't need this we are just using 
                                    //it as example to get more time while executing

                watch.Stop(); // stop measuring
		var elapsedMs = watch.ElapsedMilliseconds; //return elapse time in milliseconds
		Console.WriteLine("Elapsed time: " + elapsedMs);


Elapsed time: 3006


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