How fast ServiceCollection is being created

gistfile1.txt

  public class HowFastItIsToExecuteServiceProvider
    {
        const int N = 100;
        Type[] types = new Type[N];
        IServiceCollection serviceCollection = new ServiceCollection();
        public HowFastItIsToExecuteServiceProvider()
        {
            var tb = GetTypeBuilder();

            for (int i = 0; i < N; ++i)
            {
                types[i] = tb.CreateType();
                this.serviceCollection.AddTransient(types[i]);
            }

        }

        static int i = 0;
        private static TypeBuilder GetTypeBuilder()
        {
            var typeSignature = $"MyDynamicType{i++}";
            var an = new AssemblyName(typeSignature);
            AssemblyBuilder assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(an, AssemblyBuilderAccess.Run);
            ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule("MainModule");
            Assembly a = Assembly.GetExecutingAssembly();
            TypeBuilder tb = moduleBuilder.DefineType(typeSignature,
                    TypeAttributes.Public |
                    TypeAttributes.Class |
                    TypeAttributes.AutoClass |
                    TypeAttributes.AnsiClass |
                    TypeAttributes.BeforeFieldInit |
                    TypeAttributes.AutoLayout,
                    null);
            return tb;
        }

        [Benchmark]
        public async Task WithoutPreconfiguredServiceCollection()
        {
            var serviceCollection = new ServiceCollection();
            for(int i = 0;i < N; ++i)
            {
                serviceCollection.AddTransient(types[i]);
            }
            ServiceProvider sp = serviceCollection.BuildServiceProvider();
        }

        [Benchmark]
        public async Task WithPreconfiguerServiceCollection()
        {
            ServiceProvider sp = serviceCollection.BuildServiceProvider();
        }

    }