Simple Benchmark methods in Godot.

benchmark.cs

public static void Benchmark(Action callable, string tag = null)
{
  var start = Time.GetTicksMsec();

  callable();

  var duration = Time.GetTicksMsec() - start;
  if (tag != null)
    GD.PrintT(tag, duration);
  else
    GD.Print(duration);
}

benchmark.gd

func benchmark(callable: Callable, tag: String = null):
    var start: int = Time.get_ticks_msec()
    
    callable.call()
    
    var duration: int = Time.get_ticks_msec() - start
    if tag:
      printt(tag, duration)
    else:
      print(duration)