c# microbenchmark

Program.cs

// needs C# 9.0 or newer (top level statements)
// will utilize 100 % CPU and print elapsed seconds when finished
// Ryzen 5900x - cca 150 seconds
// you can also use int.MaxValue / 100 for shorter run

using System;
using System.Threading.Tasks;

var d = DateTime.Now;
Parallel.For(0, int.MaxValue, _ => new Random() );
Console.WriteLine((DateTime.Now - d).TotalSeconds);