Comment by nofriend

The hertz is formally defined as 1/s, except this leaves open the question of 1 what each second. I've seen it argued that since the numerator is unitless, and radians are also unitless, that the hertz as defined refers to one radian per second, and that it should have instead been defined as rev/s. While this argument might be specious, it suggests to us that even if our numerator is unitless, we should still be clear about what kind of thing we are describing rates of. So say "requests per second" if that is what you are talking about, and things will be clearer for everyone.