Average or Percentile? Dec 11, 2020 100 Requests - 99 take 1s and 1 takes 100s. Average = 199 / 100 = ~2s Does an “average” request take 2s? Median (or p50) = p75 = p90 = p99 = 1s Only p100 = 100s :) This is why watching for “average” time is a bad idea. Prefer percentiles.