This improvement enables Hybrid buffer pool read caching in Microsoft SQL Server 2019. This includes the following features:

  • 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.


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


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:


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

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