Example Program to Create a Managed Memory Leak

Program_ManagedMemoryLeak.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ManagedMemoryLeak
{
    class Program
    {
        // if you start this program and then create a memory dump
        // you can open the dump up with Visual Studio (not available in Community)
        // then you should be able to see the object that is using the most memory
        static void Main(string[] args)
        {

            var e = new AutoResetEvent(false);
            var t = new Timer(timerManaged_Tick, e, 0, 250);

            e.WaitOne();


        }

        private static List<object> objs = new List<object>();

        private static void timerManaged_Tick(object state)
        {
            AutoResetEvent autoEvent = (AutoResetEvent)state;
            Console.WriteLine("tick");
            
            // add some data to the list
            var obj = new { time = DateTime.Now, data = Enumerable.Range(0, 10000).ToList() };
            objs.Add(obj);
        }

    }
}