Discovers all classes in the assembly that have [Benchmark] attributes and runs them with BenchmarkRunner (BenchmarkDotNet)

BenchmarkDotnetDiscovery.cs

static Type[] GetAllTypesThatHaveBenchmarkMethods()
{
    return Assembly.GetExecutingAssembly().GetTypes().Where(
        type => type.GetMethods().Any(
            method => method.GetCustomAttributes(typeof(BenchmarkAttribute)).Any()
        )
    ).ToArray();
}

var benchmarkTypes = GetAllTypesThatHaveBenchmarkMethods();
foreach (var type in benchmarkTypes)
{
    Console.WriteLine($"Benchmarking {type.FullName}");
    BenchmarkRunner.Run(type);
}