Fizz Buzz demonstrates the power of async console logging in C#

Program.cs

    public class Program
    {
        private static readonly Queue<Tuple<string, object[]>> PrintQueue = new Queue<Tuple<string, object[]>>();
        private static bool _running;

        private static void LogAsync()
        {
            while (_running)
            {
                var wait = true; // To avoid waiting next cycle

                while (PrintQueue.Count > 0)
                {
                    wait = false;

                    var (item1, item2) = PrintQueue.Dequeue();

                    Console.WriteLine(item1, item2);
                }

                if (wait) Thread.Sleep(10); // Wait for next cycle of logs
            }
        }

        // Debug variable. Switch this to see performance difference
        private const bool WriteLineAsync = true;

        private static void writeLine(string s, params object[] args)
        {
            if (WriteLineAsync)
            {
                PrintQueue.Enqueue(new Tuple<string, object[]>(s, args));
            }
            else
            {
                Console.WriteLine(s, args);
            }
        }

        private static void Main(string[] args)
        {
            _running = true;

            var stopwatch = new Stopwatch();

            stopwatch.Start();



            if (WriteLineAsync)
            {
                Console.WriteLine("Starting async console thread");
                new Thread(LogAsync).Start(); // Start the method async
            }

            const int fizzBuzz = 10000; // Testing var

            Console.WriteLine($"Starting fizz buzz with {fizzBuzz}");

            for (var i = 0; i < fizzBuzz; i++)
            {
                if (i % 3 == 0 && i % 5 == 0)
                {
                    writeLine("Fizz buzz {0}", i);
                } else if (i % 3 == 0)
                {
                    writeLine("Fizz {0}", i);
                } else if (i % 5 == 0)
                {
                    writeLine("Buzz {0}", i);
                }
            }

            var endFizz = stopwatch.ElapsedMilliseconds;

            while (PrintQueue.Count > 0) Thread.Sleep(10); // Wait for queue to end for the last print message

            stopwatch.Stop();

            Console.WriteLine($"Finished Fizz Buzz for {fizzBuzz} in time {stopwatch.ElapsedMilliseconds}ms ({endFizz}ms for doing math)");

            _running = false;
        }
    }