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SQL Server 2016 introduced one new DMV is sys.dm_exec_function_stats which returns the aggregate performance statistics for cached functions.
It is very similar to sys.dm_exec_query_stats and it returns information about scalar functions, In-Memory functions and CLR functions.
You can also get the number of execution count of functions which helps you to troubleshoot performance related problems.
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SELECT TOP 30 d.object_id ,d.database_id ,OBJECT_NAME(object_id, database_id) AS FunctionName ,d.cached_time ,d.last_execution_time ,d.total_elapsed_time ,d.total_elapsed_time/d.execution_count AS [avg_elapsed_time] ,d.last_elapsed_time, d.execution_count FROM sys.dm_exec_function_stats AS d ORDER BY [total_worker_time] DESC; |
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