KB3175883 - Decrease in performance and "non-yielding scheduler" errors caused by unnecessary spinlocks in SQL Server


With the introduction of contained databases in SQL Server, the database engine always performs a containment check before executing stored procedures. On high-end computers with multiple cores, this check may cause a decrease in performance because of internal spinlock contention, occasionally causing "non-yielding scheduler" errors.


This problem was first fixed in the following cumulative update for SQL Server:

About cumulative updates for SQL Server

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:

Latest cumulative update for SQL Server 2014 (SP1/SP2)

Latest cumulative update for SQL Server 2016 


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


Learn about the terminology Microsoft uses to describe software updates.

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