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CSharp · Console

/Program.cs

using System;
using System.Collections.Concurrent;
using System.Threading;
using System.Threading.Tasks;
using System.Diagnostics;

public class Program
{
    public static void Main()
    {
        new Thread(() =>
        {
            var queue = new BlockingCollection<int>();
            Parallel.ForEach(queue.GetConsumingEnumerable(), _ => { });
        })
        { IsBackground = true }.Start();

        Stopwatch stopwatch = Stopwatch.StartNew();
        while (true)
        {
            Console.WriteLine($"ThreadCount: {ThreadPool.ThreadCount}");
            if (stopwatch.ElapsedMilliseconds > 8000) break;
            Thread.Sleep(1000);
        }
        Console.WriteLine("Finished");
    }
}