using System;

using System.Diagnostics;

​

public class PointControlA

{

    public double X

    {

        get;

        set;

    }

​

    public double Y

    {

        get;

        set;

    }

​

    public PointControlA(double x, double y)

    {

        X = x;

        Y = y;

    }

}

​

public class Point3ControlA : PointControlA

{

    public double Z

    {

        get;

        set;

    }

​

    public Point3ControlA(double x, double y, double z): base (x, y)

    {

        Z = z;

    }

​

    public static double Dot(Point3ControlA a, Point3ControlA b)

    {

        return a.X * b.X + a.Y * b.Y + a.Z * b.Z;

    }

}

​

public class Point3ControlB

{

    public double X

    {

        get;

        set;

    }

​

    public double Y

    {

        get;

        set;

    }

​

    public double Z

    {

        get;

        set;

    }

​

    public Point3ControlB(double x, double y, double z)

    {

        X = x;

        Y = y;

        Z = z;

    }

​

    public static double Dot(Point3ControlB a, Point3ControlB b)

    {

        return a.X * b.X + a.Y * b.Y + a.Z * b.Z;

    }

}

​

public struct Point3ControlC

{

    public double X

    {

        get;

        set;

    }

​

    public double Y

    {

        get;

        set;

    }

​

    public double Z

    {

        get;

        set;

    }

​

    public Point3ControlC(double x, double y, double z):this()

    {

        X = x;

        Y = y;

        Z = z;

    }

​

    public static double Dot(Point3ControlC a, Point3ControlC b)

    {

        return a.X * b.X + a.Y * b.Y + a.Z * b.Z;

    }

}

​

public class TestClassPerformance

{

}

​

public class Program

{

    public static void EyeshotIsSlow()

    {

        var vControlA = new Point3ControlA(11, 12, 13);

        var vControlB = new Point3ControlB(11, 12, 13);

        var vControlC = new Point3ControlC(11, 12, 13);

        var sw = Stopwatch.StartNew();

        var n = 10000000;

        double acc = 0;

        sw = Stopwatch.StartNew();

        for (int i = 0; i < n; i++)

        {

            acc += Point3ControlA.Dot(vControlA, vControlA);

        }

​

        Console.WriteLine("ControlA " + sw.ElapsedMilliseconds);

        acc = 0;

        sw = Stopwatch.StartNew();

        for (int i = 0; i < n; i++)

        {

            acc += Point3ControlB.Dot(vControlB, vControlB);

        }

​

        Console.WriteLine("ControlB " + sw.ElapsedMilliseconds);

        acc = 0;

        sw = Stopwatch.StartNew();

        for (int i = 0; i < n; i++)

        {

            acc += Point3ControlC.Dot(vControlC, vControlC);

        }

​

        Console.WriteLine("ControlC " + sw.ElapsedMilliseconds);

    }

​

    public static void Main()

    {

        EyeshotIsSlow();

    }

}