View Performance

Grant Fritchey looks at view performance vis-a-vis stored procedures:

The difference in the performance including compile time for the procedure alone is 700mc better on average than the view. That’s an 8% difference. It was almost that high for the view that used the procedure at 7%.

If we’re just talking compile time then, there is a significant win if we avoid the view. This is no doubt because of the extra work involved in unpacking the view and going through the simplification process within the optimizer. Plus, the view alone in our query was parameterized by the optimizer in order to assist it’s performance over time (as we saw in the average results without the recompile). All that extra work explains the 8% difference.

Read the whole thing.

Related Posts

Tuning Azure SQL Database

Tim Radney walks us through some of the tools we have available to tune Azure SQL Databases: Many instance-level items that you have been used to configuring on full installations are off limits. Some of these items include:– Setting min and max server memory– Enabling optimize for ad hoc workloads– Changing cost threshold for parallelism– […]

Read More

Performance Testing Simple Scalar UDF Functions

Wayne Sheffield tries out a simple scalar UDF in SQL Server 2019 to see how it performs: I recently published a post detailing the new Scalar UDF Inlining feature in SQL 2019 here. That post introduced the new feature in a way that I used to compare performance to the other function types, continuing the […]

Read More

Categories

November 2016
MTWTFSS
« Oct Dec »
 123456
78910111213
14151617181920
21222324252627
282930