Ridgeline · Diagram Design
Checkout is slow in two different ways
Checkout is slow in two different ways
Ridgeline chart of request-latency distributions for five services over one week; each ridge is the share of that service's requests falling in 40-millisecond bins, drawn on one shared amplitude scale, and checkout-api carries a second peak past 300 milliseconds that none of the other four show.
SHARE OF REQUESTS · 1% = 2.4PX ON EVERY RIDGE
static-cdn
40–280 ms
auth-api
40–320 ms
search-api
40–400 ms
checkout-api
40–440 ms
report-export
80–440 ms
0
120
240
360
480
REQUEST LATENCY (MS), BIN LOWER EDGE
LEGEND
SHARE OF EACH SERVICE'S OWN REQUESTS PER 40 MS BIN · 1% = 2.4PX ON EVERY RIDGE · UNSMOOTHED · ILLUSTRATIVE FIGURES
checkout-api · focal, second peak past 300 ms
Other services · strongest tone is the fastest median