using System;

using System.Collections.Generic;

using System.Diagnostics;

using Autoapper;

​

public class Person

{

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public int Age { get; set; }

}

​

public class PersonDto

{

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public int Age { get; set; }

}

​

class Program

{

    static void Main(string[] args)

    {

        // Initialize AutoMapper

        Mapper.Initialize(cfg => cfg.CreateMap<Person, PersonDto>());

​

        // Create a list of 1000 Person objects

        var people = new List<Person>();

        for (int i = 0; i < 1000; i++)

        {

            people.Add(new Person

            {

                FirstName = "John",

                LastName = "Doe",

                Age = 30

            });

        }

​

        // Benchmark AutoMapper

        var stopwatch = new Stopwatch();

        stopwatch.Start();

        for (int i = 0; i < 1000; i++)

        {

            var personDto = Mapper.Map<PersonDto>(people[i]);

        }

        stopwatch.Stop();

        Console.WriteLine("AutoMapper: " + stopwatch.ElapsedMilliseconds + "ms");

​

        // Benchmark explicit assignment

        stopwatch.Restart();

        for (int i = 0; i < 1000; i++)

        {

            var personDto = new PersonDto();

            personDto.FirstName = people[i].FirstName;

            personDto.LastName = people[i].LastName;

            personDto.Age = people[i].Age;

        }

        stopwatch.Stop();

        Console.WriteLine("Explicit assignment: " + stopwatch.ElapsedMilliseconds + "ms");

​

        Console.ReadKey();

    }

}

​