KB4035062 - FIX: Memory use with many databases in SQL Server 2017 or 2016 is greater than in earlier versions

Symptoms

Assume that you have many databases (for example, 1,000 databases) in a single instance of Microsoft SQL Server 2016 or 2017. You may notice that memory usage is greater when you compare it to memory usage in earlier versions of SQL Server.

Resolution

This fix is included in the following cumulative updates for SQL Server: 

Cumulative Update 2 for SQL Server 2017

Cumulative Update 9 for SQL Server 2016 RTM

Cumulative Update 6 for SQL Server 2016 SP1

About SQL Server builds

Each new build for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest cumulative updates for SQL Server:

Latest cumulative update for SQL Server 2017

Latest cumulative update for SQL Server 2016

Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.