Moved from: bobsql.com
SQL Server leverages a worker pool for the In-Memory Optimized Database capabilities. Prior to SQL Server 2016, increasing the size of the pool required you to enable a startup trace flag.
SQL Server 2016 removed the trace flag and updated the design to dynamically adjust the size of the In-Memory Optimized Database worker pool as needed.
‘It Just Runs Faster’ – SQL Server 2016 dynamically adjusts the In-Memory Optimized worker pool to maximize scalability and performance.