NLiteMapper与EmitMapper性能简单比较

应 风云（老看成 云风）要求,简单测试了下NLiteMapper的性能，顺道与Emit方式作一下性能比较，不知道是我应用不得当还是有什么其它原因，不知道为什么NLite性性能较之EmitMapper如如此大的差别，看看我的测试代码：

static void Main(string[] args)

{

    //consturct data

    List<SimpleClassFrom> fromCollection = new List<SimpleClassFrom>();

    int count = 10000;

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

    {

        SimpleClassFrom from = new SimpleClassFrom

        {

            ID = 123456,

            Name = "test",

            Age = 30,

            Email = "[email protected]"

        };

        fromCollection.Add(from);

    }

    //test nlite mapper

    NLite.Mapping.IMapper<SimpleClassFrom, SimpleClassTo> a = NLite.Mapper.CreateMapper<SimpleClassFrom, SimpleClassTo>();

    Stopwatch sw = Stopwatch.StartNew();

    sw.Start();

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

    {

        a.Map(fromCollection[i]);

    }

    sw.Stop();

    Console.WriteLine("nlitemapper elapsed:{0}ms", sw.ElapsedMilliseconds);

    //test emit mapper

    EmitMapper.ObjectsMapper<SimpleClassFrom,SimpleClassTo> mapper = EmitMapper.ObjectMapperManager.DefaultInstance.GetMapper<SimpleClassFrom, SimpleClassTo>();

    sw.Restart();

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

    {

        mapper.Map(fromCollection[i]);

    }

    sw.Stop();

    Console.WriteLine("emitmapper elapsed:{0}ms", sw.ElapsedMilliseconds);

    Console.Read();

}

 

  我只mapper了10000个对象,看看测试结果

测试结果：

 

NLite Mapper具体实现我没看，有空看看，风云说是用Emit方式实现Mapper，性能不至于差如此之远！

完整测试代码下载