class Program {

    static DateTime firstdate, lastdate;

    const int CHUNKSIZE =  10 * 1024 * 1024; //  10 MB.
    const int TRIALS = 10000;

    static void startmeasure() {

        firstdate = DateTime.Now;

    }

    static void stopmeasure() {

        lastdate = DateTime.Now;

        var duration = lastdate.Subtract(firstdate);

        Console.WriteLine("Test duration:" + duration.TotalSeconds.ToString());

    }

    static void Main(string[] args) {

        string input;

        do {

            input = Console.ReadLine();

            switch (input) {

                case "test":

                    handletest();

                    break;

            }

        } while (input != "exit");

    }

    static void handletest() {

        startmeasure();

        byte[] data;

        for (int i = 0; i < TRIALS; i++) {

            data = getdata(CHUNKSIZE);

        }

        stopmeasure();

    }

    static byte[] getdata(int size) {

        return new byte[size];

    }

}