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Performance Monitor Attribute Queries

Question asked by JFors on Apr 30, 2015
Latest reply on May 4, 2015 by bshang

My project requires that I document the performance of PI Based queries.  My approach was to create an AFDataReference where a passed in AFAttribute, representing a PI Based query, would get evaluated between a StopWatch (Start,Stop) to return the ellapsed time of the query.  I see the GetValue method includes an AFValues list.  Is the fact that the AFAttributes passed have already been evaluated affect the performance measurement, due to caching, of my attempt to measure the duration?