> [!MultiXactOffsetControlLock] > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_lwlock_multixact_offset_control.png"></td><td><b>Wait Category</b></td><td>LWLock</td></tr><tr><td><b>Mechanism</b></td><td><code>MultiXactOffsetControlLock</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Other/Locking">Locking</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/RAM">Memory</a>, <a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3">Contention on the <b>Group Lock Indexer</b>. This lock coordinates the allocation of new offsets in the MultiXact system, allowing the engine to map a single MultiXact ID to a specific range of members in the member storage.</td></tr></table>