Sort statistics tracing

The sort_statistics_tracing extended event can be used to reveal details about the sorts being performed on your SQL Server. Adding the sql_text action and sending the output to a live data window we see this:

It’s possible to filter on the max buffers or bobs (big output buffers) to eliminate all but the larger sorts. In combination with the sort warning extended event we can identify the big sorts that are spilling to tempdb.

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