Load Testing CPU Cores in C#

I wrote a small Console application in C# that will nuke your logical processors (by nuke, I mean to say that it will eat your CPU utilization, and you’ll see each core spool up to 100% usage):

using System;
using System.Runtime.InteropServices;
using System.Threading;

namespace CPUHog
{
    class Program
    {

        [DllImport("kernel32.dll")]
        static extern IntPtr GetCurrentThread();
        [DllImport("kernel32.dll")]
        static extern IntPtr SetThreadAffinityMask(IntPtr hThread, IntPtr dwThreadAffinityMask);

        static void Main(string[] args)
        {
            Console.WriteLine("Starting the CPU hog.");
            Console.WriteLine("Number of logical processors: {0}", Environment.ProcessorCount);
            for (int i = 0; i < Environment.ProcessorCount; i++)
            {
                SpoolThread(i);
            }
            Console.WriteLine("Press any key to exit the CPU hog.");
            Console.ReadLine();
            Environment.Exit(0);
        }

        // Spools a spinning thread on a given CPU core.
        static void SpoolThread(int core)
        {
            new Thread(() =>
            {
                Thread.BeginThreadAffinity();
                Console.WriteLine("Nuking logical processor {0}.", core);
                SetThreadAffinityMask(GetCurrentThread(), new IntPtr(1 << (int)(core)));
                // The while loop below is what actually does the nuking.
                while (true) { }
            }).Start();
        }
    }
}

To view its effects, use Task Manager (CTRL + SHIFT + ESCAPE) -> Performance tab -> Click on CPU -> Right click the graph on the right-hand side (in the CPU view) -> Change graph to -> Logical processors. You’ll see something like this: