Watch PostgreSQL bottlenecks play out in a 3‑D city simulator
PGSimCity turns a PostgreSQL instance into an interactive 3‑D city where each table is a building and each process is a vehicle. You can trigger checkpoint storms, cache thrashing, autovacuum blockages, lock pile‑ups, or replication lag and instantly see how the database’s internals react. It’s a hands‑on way to diagnose performance issues without digging into logs.