> and a little bump every minute if your metrics have enough resolution
Amusingly, you can also observe periodic bumps if your metrics don’t have enough resolution, due to aliasing effects dominating signal (guestures vaguely at Nyquist frequency).
Amusingly, you can also observe periodic bumps if your metrics don’t have enough resolution, due to aliasing effects dominating signal (guestures vaguely at Nyquist frequency).
The specific resolution is the Nyquist frequency - that part is accurate.
Similarly, sample count/interval limits in tsdbs like prometheus are not downsampling. They're just skipping samples. This also creates aliasing. Can be very noticeable especially if you combine it with rate/derivative functions.