Method Group Performance Test

Program.cs

using System;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Attributes.Jobs;
using BenchmarkDotNet.Engines;
using BenchmarkDotNet.Running;

namespace BenchmarkDotNetHarness
{
    class Program
    {
        static void Main(string[] args)
        {
            var summary = BenchmarkRunner.Run<PerformanceTests>();

            Console.WriteLine(summary.ToString());
        }
    }

    [MemoryDiagnoser]
    [SimpleJob(RunStrategy.Monitoring, launchCount: 2, warmupCount: 2, targetCount: 5, invocationCount: 10000000)]
    public class PerformanceTests
    {
        private int GetStringLength(string s) => s.Length;

        [Benchmark(Baseline = true)]
        public object CreateLambdaFromMethodGroup()
        {
            Func<string,int> f = this.GetStringLength;
            return f;
        }

        [Benchmark]
        public object CreateLambdaWithoutMethodGroup()
        {
            Func<string, int> f = i => this.GetStringLength(i);
            return f;
        }
    }
}