While metrics are often evenly spaced, that's not always the case. Good resolution on the timestamps helps avoid graph artifacts and other weirdness, even if y

While metrics are often evenly spaced, that's not always the case. Good resolution on the timestamps helps avoid graph artifacts and other weirdness, even if you're only collecting them once a minute. Millisecond accuracy seems to be sufficient in my experience, there's other races of that magnitude anyway (network jitter, kernel scheduling etc.).