ASpeak IOpine!

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using System.Reflection;
 
namespace LambdaReflection
{
 
    class MyClass
    {
        public void CallIt()
        {
        }
    }
 
    class Program
    {
        delegate void LocalDel<t>(T mc);
        static void Main(string[] args)
        {
            System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
            MethodInfo minfo = typeof(MyClass).GetMethod("CallIt", BindingFlags.Instance | BindingFlags.Public);
            MyClass obj = new MyClass();
 
            //compile expression tree
            LocalDel<myclass> lambdaExpression = FuncCallIt<myclass>("CallIt");
            sw.Reset();
            sw.Start();
 
            //Direct call by using object
            for (int a = 0; a &lt; 10000; a++)
            {
                obj.CallIt();
            }
            sw.Stop();
            Console.WriteLine(string.Format("Time taken by Direct call {0}", sw.ElapsedTicks));
            sw.Reset();
            sw.Start();
 
            //dynamically compiled lambda call
            for (int a = 0; a &lt; 10000; a++)
            {
                lambdaExpression(obj);
            }
            sw.Stop();
            Console.WriteLine(string.Format("Time taken by lambda-expression compilation {0}", sw.ElapsedTicks));
            sw.Reset();
            sw.Start();
 
            //reflection call
            for (int a = 0; a &lt; 10000; a++)
            {
                minfo.Invoke(obj, null);
            }
            sw.Stop();
            Console.WriteLine(string.Format("Time taken by Reflection call {0}", sw.ElapsedTicks));
            Console.ReadLine();
 
        }
        private static LocalDel<t> FuncCallIt<t>(string MethodName)
        {
            var target = Expression.Parameter(typeof(T), "a");
            MethodInfo minfo = typeof(T).GetMethod(MethodName, BindingFlags.Instance | BindingFlags.Public);
            var methodinvokeExpression = Expression.Call(target, minfo);
            var lambda = Expression.Lambda<localdel><t>&gt;(methodinvokeExpression, new ParameterExpression[] { target });
            return lambda.Compile();
        }
    }
}