FIX: High CPU usage when there are many batch requests in SQL Server

Applies to: SQL Server 2016 DeveloperSQL Server 2016 EnterpriseSQL Server 2016 Enterprise Core


Assume that you have Microsoft SQL Server installed in a high-end server. When there are many incoming ad hoc queries, concurrentquery compilations occur in the context of the sqlsource_transform system transaction, and you may notice that CPU utilization is very high.


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


Cumulative Update Information:
The issue is 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 andsecurity fixes that were in the previous build. We recommend that you installthe latest build for your version of SQL Server: 


Learn about the terminology thatMicrosoft uses to describe software updates.