Check execution time.

Profiling.cs

using System.Diagnostics;

private readonly Stopwatch stopwatch;
// Initialize should be done in class constructor
stopwatch = new Stopwatch();

// Usage
stopwatch.Start();
// Metod/algoritm to execute
stopwatch.Stop();

// Read elapsed time
Console.Write("The method took {0} seconds to complete", stopwatch.ElapsedMilliseconds / 1000);

// Start method acts to resume functionality when a stopwatch is stopped to start fresh call Reset method
stopwatch.Reset();