This wait accumulates during CLR task startup. This is an expected wait and minimal values are acceptable. If values are excessive see suggested solutions below

DBAs and Developers

Suggested solutions

  1. Ensure CLR code is written as per best practices (link below)
  2. Run an Extended Event collecting wait statistics. Find which requests are accumulating the wait type and rectify

Additional research

Common Language Runtime from the DBA Point of View
SQLCLR: A DBA’s friend or foe?
The Database Administrator’s Guide to the SQL Server Database Engine .NET Common Language Runtime Environment

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