using System;

using System.Threading;

using System.Threading.Tasks;

public class Program

{

    public static async Task Main()

    {

        var value = 100;

        var result1 = await Perf(() => {var x = value < 0;});

        Console.WriteLine(result1); 

        var result2 = await Perf(() => {var x = Math.Abs(value) != value;});

        Console.WriteLine(result2);

    }

    static async Task<int> Perf(Action act)

    {

        int numOps = 0;

        var cts = new CancellationTokenSource();

        await Task.WhenAny(Task.Delay(2000),Task.Run(() => {

            while(true)

            {

                act();

                numOps++;

            }

        },cts.Token));

        cts.Cancel();

        return numOps;

    }

}