SQLWhy is SQL Server 2016 Faster Than Ever March 11, 20167037 views0Share By IG ShareSQL Server 2016 is designed to work faster than any earlier version of SQL Server. There was a set of tweaking that was earlier required to be a manual process. At the same time, an experienced DBA was required to do all the tweaking. Experience with trace flags, TempDB best practices were required to keep SQL Server up to speed. That changed with SQL Server 2016. In this release, a lot of those tweaks are preconfigured which is why SQL Server 2016 is faster than ever. Want to know what these tweaks are? Read along:Note: If you buy something from our links, we might earn a commission. See our disclosure statement.How SQL Server 2016 Is Faster Than EverTempdb ImprovementsUnnecessary adjustments like Trace flags 1117 and 1118 have been removed and the behavior is enabled by default for tempdb system database.That trace flag 118 instructs SQL Server to avoid “Mixed extents” and use “Full extents” See KB 2154845TRACE FLAG 1117 – Grow All Files In a FILEGROUP EquallyCurrent Setup:Metadata latch contentionHigh rate of “Create/Drop” workloadsLATCH_EX waits on underlying system tablesCurrently the only solution is to rewrite stored procedures in order to reduce temp table usage.SQL Server 2016 Improvements:Improved scanning algorithmsReduced metadata contentionOptimistic locking of system tables under shared latchSetup OptionsYou can now use the new setup installer to pre-configure size and auto growth of TempDB.Trace Flag BehavioursSpatial:-T8048 -T6531 -T6532 -T6533 -T6534Query OptimizerTrace Flag 4199Trace Flag 2371Trace flag 2453Trace flag 8032ErrorlogTF 3014 = TF 3014 + TF 3004 + TF 3212Metadata Latch ContentionBetter handles lower-level I/O, locking, latching, and access method activity for each partition of a table or index in the database.Dynamic Thread Safe PMOOne of the enhancements of the SQL Server 2016 core engine is scalability improvement, dynamically partitioning thread safe memory objects by NUMA or CPU, which enables higher scalability.Support for 12 TB RAM of RAMMultiple Log WritersAuto Soft NUMAThis solves the issues with cxpacket wait types due to high parallelism.Detects 8+ CPUsTargets of 5 to 8 CPUsScheduling NodesPer Instance level settingRegistry OverridesDBCC Performance improvements 7xSQL Server 2016 replaces the following Trace-Flags -T2562 -T2563 -T2549The above trace flags make SQL Server to better maximize disk I/O resource usage when a user executes the DBCC CHECKDB commandSpatial2000x more performance in SQL Server 2016 in comparison to previous editions.See here for detailed information.Database CloningEasy debugging of schema and statistics for query planKey TakeawaysSQL Server 2016 just works faster without any application changes. Greater performance and scale for existing workloads. It also provides new diagnostic tools to monitor performance. Affiliate Disclosure: Faceofit.com is a participant in the Amazon Services LLC Associates Program. As an Amazon Associate we earn from qualifying purchases. Share What's your reaction? Excited 0 Happy 0 In Love 0 Not Sure 0 Silly 0
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