> [!NOTE] ![[assets/wl_lwlock_waitevent.png|256]] > > | | | > | :--- | :--- | > | **Wait Category** | LWLock | > | **Mechanism** | `WaitEventLock` | > | **Operations** | [[Operations/Other/FunctionScan]] | > | **Resources** | [[Resources/RAM|Memory]], [[Resources/CPU|CPU]] | > > Contention on the **Observability Registration Layer**. While core Postgres wait events have fixed identifiers, extensions may define their own custom events to provide deeper visibility into their proprietary logic.