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Investigating THREADPOOL Waits

Erik Darling has an interesting query against sys.dm_exec_query_stats to help you determine what might cause your THREADPOOL wait problems:

When THREADPOOL strikes, even the best monitoring tools can have a bunch of blank spots hanging around in them.

If you’re on SQL Server 2016 or better, there are some helpful columns in sys.dm_exec_query_stats.

Erik also has advice to help you out if you are running into these waits.