guards-benchmark.cs

class Program
{
    static void Main(string[] args)
    {
        BenchmarkRunner.Run<GuardBenchmark>();
    }
}

[MemoryDiagnoser]
public class GuardBenchmark
{
    private readonly SomeReferenceType _reference = new SomeReferenceType();

    [Benchmark]
    public void GuardWithAllocations()
    {
        Guard.NotNull(() => _reference);
    }

    [Benchmark]
    public void GuardWithoutAllocations()
    {
        Guard.NotNull(_reference, nameof(_reference));
    }
}