Slopegraph · Diagram Design
One service went the other way
One service went the other way
Slopegraph of p95 response time by service before and after a caching layer, on one shared 100-to-550-millisecond scale; four services got faster and the recommender got slower, crossing three of them.
P95 RESPONSE TIME, MS
BEFORE
AFTER
Search
512
208
Search
Catalog
376
164
Catalog
Checkout
291
143
Checkout
Auth
154
121
Auth
Recommender
238
431
Recommender
LEGEND
P95 RESPONSE TIME IN MS, LOWER IS BETTER · SAME 100-550 SCALE ON BOTH AXES · ILLUSTRATIVE FIGURES, NOT A MEASURED RELEASE
Recommender · focal, the only regression
Other services · strongest tone was slowest before