Symptoms

Threads are not scheduled as evenly in Microsoft SQL Server 2012 or SQL Server 2014 Standard Edition as they are in SQL Server 2012 or SQL Server 2014 Enterprise Edition. Therefore, performance in SQL Server 2012 or SQL Server 2014 Standard Edition is slower than expected when there are many concurrent requests.

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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