Benchmark Timing with DateTime : DateTime « Date Time « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Date Time
3. DateTime

using System;
using System.Collections.Generic;
using System.Text;

   public class MyMath
   {
      public int DoSum( int n )
      {
         int result = 0;
         for ( int i = 1; i <= n; i++ )
         {
            result += i;
         }
         return result;
      }

      public int DoSum2()
      {
         return 1 + 20;
      }

   }

   public class TestDriver
   {
      public static void Main()
      {
         int val = 20;  
         int iterations = 1000000;
         int result = 0;
         MyMath m = new MyMath();
         DateTime startTime = DateTime.Now;
         for ( int i = 0; i < iterations; i++ )
         {
            result = m.DoSum( val );
         }
         TimeSpan elapsed =DateTime.Now - startTime;
         Console.WriteLine("Loop: Sum of ({0}) = {1}",val, result );
         Console.WriteLine(elapsed.TotalMilliseconds.ToString() );
         startTime = DateTime.Now;
         for ( int i = 0; i < iterations; i++ )
         {
            result = m.DoSum2();
         }
         elapsed = DateTime.Now - startTime;
         Console.WriteLine("Brute Force: Sum of ({0}) = {1}",val, result );
         Console.WriteLine(elapsed.TotalMilliseconds );
      }
   }