MeasureExecutionTime

Program.cs

        static void MeasureExecutionTime(Action func, string Text)
        {
            Stopwatch sw = new Stopwatch();

            int count = 32, total = 0;
            double time = 0.0;

            // Warp up
            func();

            while (true)
            {
                sw.Restart();
                for (int i = 0; i < count; i++)
                    func();
                sw.Stop();

                time += sw.Elapsed.TotalSeconds;
                total += count;

                if (time < 1.0)
                {
                    count = count * 3 / 2;
                }
                else
                {
                    break;
                }
            }

            time /= total;

            Console.Write("{0}: ", Text);

            if (time > 1.0)
                Console.WriteLine("{0:0.00} s/op, {1:0.000} op/s", time, 1.0 / time);
            else if (time > 1e-3)
                Console.WriteLine("{0:0.00} ms/op, {1:0.0} op/s", time * 1e3, 1.0 / time);
            else if (time > 1e-6)
                Console.WriteLine("{0:0.00} us/op, {1:0.0} kop/s", time * 1e6, 1e-3 / time);
            else
                Console.WriteLine("{0:0.00} ns/op, {1:0.0} mop/s", time * 1e9, 1e-6 / time);
        }