gistfile1.cs

            AttributesToAvoidReplicating.Add<MarshalAsAttribute>();
            var pg = new ProxyGenerator();
            var tasks = new List<Task>();
            var interfaces =
                typeof (object).Assembly.GetExportedTypes()
                    .Where(t => t.IsInterface && t.IsGenericTypeDefinition == false)
                    .OrderBy(t => t.Name).Take(10);
            for (int _ = 0; _ < 100; _++)
            {
                foreach (var @interface in interfaces)
                {
                    var i = @interface;
                    tasks.Add(new Task(() => pg.CreateInterfaceProxyWithoutTarget(i)));
                }
            }
            var allTasks = tasks.ToArray();
            var sw = Stopwatch.StartNew();
            Array.ForEach(allTasks, t => t.Start());
            Task.WaitAll(allTasks);
            Console.WriteLine();
            Console.WriteLine("All done in " + sw.ElapsedMilliseconds + "ms");
            Console.ReadKey();