KB4538118 - Improvement: Enable hybrid buffer pool read caching in SQL Server 2019

Applies to: SQL Server 2019 on LinuxSQL Server 2019 on Windows

Improvement


This improvement enablesHybrid buffer pool read caching in Microsoft SQL Server 2019. This includes the followingfeatures:
  • Access to read-only pages in persistent memory is tracked.
  • Hot read-only pages are migrated to DRAM-based buffer pool.
  • Access is allows to hot data at DRAM speeds.

Cause


Direct access to data in persistent memory is a little slower than accessto data in the DRAM-based buffer pool.

Resolution


This improvement is included 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:

References


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