SQL Server audit logout creates huge number of reads

Question

I\'m using SQL Server Profiler to figure out what process are consuming SQL process and I found that the event class Audit Logout is causing a huge number of re

Answer 1

The audit logout event aggregates a lot of its values like reads/writes, connection times, etc. from the time the connection was opened.

See http://msdn.microsoft.com/en-us/library/ms175827.aspx - the definition for your specific question added here:

Reads Number of logical read I/Os issued by the user during the connection.

So basically, the number you are seeing is not for the audit event itself, it is for all actions done by the connection that is logging out.