You use the AlwaysOn Availability Groups feature in Microsoft SQL Server 2014 Service Pack 1 (SP1). You also have memory-optimized tables defined in at least one availability group database. In this situation, the wait time of HADR_SYNC_COMMIT wait types might become longer than expected, this might decrease the performance of an instance of SQL Server, and users may report slower INSERT, UPDATE, and DELETE (DML) operations.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 3081291 - Last Review: Aug 19, 2015 - Revision: 1