static void Main(string[] args) { var noise = new SimplexNoise(); var operationTimer = new OperationTimer(); var elapsedTime = operationTimer.TimeOperation(() => { const int upperLimit = NumberOfCalculations * Iterations; for (int i = 0; i < upperLimit; i++) { var d = noise.Noise(i, i, i); } }); Console.WriteLine(elapsedTime.TotalSeconds); elapsedTime = operationTimer.TimeOperation(() => Parallel.For(0, Iterations, CalculateNoise)); Console.WriteLine(elapsedTime.TotalSeconds); }