helper to capture how many time operations consume

LogExtension.cs

class Program
{
    void Foo(string[] args)
    {
        using var _ = this.MeasureTimeCurrentMethod();

        // lot of operations

        // prints "Programg.Foo was xxx ms" 
    }
}

public static class LogExtension
{
    public static Disposable MeasureTimeCurrentMethod<T>(
        this T _,
        [CallerMemberName] string callerMethodName = "")
    {
        return new Disposable($"{typeof(T).Name}.{callerMethodName}");
    }

    public struct Disposable : IDisposable
    {
        private readonly Stopwatch _stopwatch;
        private readonly string _operation;

        public Disposable(string operation)
        {
            _operation = operation;
            _stopwatch = new Stopwatch();
            _stopwatch.Start();
        }

        public void Dispose()
        {
            _stopwatch.Stop();
            Console.WriteLine($"{_operation} was {_stopwatch.ElapsedMilliseconds}ms");
        }
    }
}