小编Luk*_*kas的帖子

我经常读到BinaryFormatter比XmlSerializer具有更好的性能.出于好奇,我写了一个测试应用程序.

一个wtf时刻......为什么Xml比Bin快得多(特别是反序列化)？

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Xml.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

namespace SerPlayground
{
    class Program
    {
        static void Main(string[] args)
        {
            var items = new List<TestClass>();
            for (int i = 0; i < 1E6; i++)
            {
                items.Add(new TestClass() { Name = i.ToString(), Id = i });
            }

            File.Delete("test.bin");
            using (var target = new FileStream("test.bin", FileMode.OpenOrCreate))
            {
                System.Threading.Thread.Sleep(1000);
                var bin = new BinaryFormatter();
                var start = DateTime.Now;
                bin.Serialize(target, items);
                Console.WriteLine("Bin: {0}", (DateTime.Now - start).TotalMilliseconds);

                target.Position = 0; …