> [!NOTE] ![[assets/wl_lwlock_dsmregistry.png|256]] > > | | | > | :--- | :--- | > | **Wait Category** | LWLock | > | **Mechanism** | `DSMRegistryLock` | > | **Operations** | [[Operations/Other/FunctionScan]] | > | **Resources** | [[Resources/RAM|Memory]], [[Resources/CPU|CPU]] | > > Contention on the **Cross-Process Memory Registry**. Unlike standard shared memory allocated at startup, DSM allows Postgres to dynamically carve out and name memory blocks that can be discovered and attached to by any backend process.