.NET: C#: StopWatch

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Diagnostics;
 6 
 7 namespace StopWatchTest
 8 {
 9     class Program
10     {
11         static void Main(string[] args)
12         {
13             Stopwatch sw = new Stopwatch();
14             string s = string.Empty;
15             StringBuilder sb = new StringBuilder();
16             const int ticks = 100000;
17             sw.Start();
18             for (int i = 0; i < ticks; i++) s += "a";
19             sw.Stop();
20             TimeSpan ts = sw.Elapsed;
21             Console.WriteLine("string append ‘a‘ {0} times using time in time: {1}, in milliSeconds: {2}, ticks: {3}", ticks.ToString(), ts.ToString(), ts.Milliseconds.ToString(), ts.Ticks.ToString());
22             sw.Restart();
23             for (int i = 0; i < ticks; i++) sb.Append("a");
24             sw.Stop();
25             //ts = sw.Elapsed;
26             Console.WriteLine("StringBuilder append ‘a‘ {0} times using time in time: {1}, in milliSeconds: {2}, ticks: {3}", ticks.ToString(), sw.Elapsed.ToString(), sw.ElapsedMilliseconds.ToString(), sw.ElapsedTicks.ToString());
27         }
28     }
29 }