A benchmark for using various methods of passing a delegate

LambdaVsMethod.cs

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;

BenchmarkRunner.Run<Benchmark>();

[MemoryDiagnoser]
public class Benchmark
{
	private static int Executor(Func<int> a) => a();

	private static int GetAnswerToLifeAndEverything() => 42;

	private static readonly Func<int> CachedMethodFunc = GetAnswerToLifeAndEverything;

	[Benchmark(Baseline = true)]
	public int Lambda() => Executor(() => 42);

	[Benchmark]
	public int Method() => Executor(GetAnswerToLifeAndEverything);

	[Benchmark]
	public int CachedMethod() => Executor(CachedMethodFunc);

	[Benchmark]
	public int MethodWithLambda() => Executor(() => GetAnswerToLifeAndEverything());

	[Benchmark]
	public int LocalMethod()
	{
		static int GetAnswerToLifeAndEverythingLocal() => 42;

		return Executor(GetAnswerToLifeAndEverythingLocal);
	}

	[Benchmark]
	public int LocalMethodWithLambda()
	{
		static int GetAnswerToLifeAndEverythingLocal() => 42;

		return Executor(() => GetAnswerToLifeAndEverythingLocal());
	}

	[Benchmark]
	public int LambdaWithCapture()
	{
		var i = GetAnswerToLifeAndEverything();
		return Executor(() => i);
	}

	[Benchmark]
	public int LocalNonStaticMethodWithCapture()
	{
		var i = GetAnswerToLifeAndEverything();

		int Returner() => i;

		return Executor(Returner);
	}
}