Poor performance when retrieving annotated values

Discussion created by opelosi on Aug 16, 2011
Latest reply on Aug 29, 2011 by opelosi

Hi guys




I´m developing an application that sends a big file annotation (16+ MB) and retrieves it on ProcessBook VBA using PI SDK. The application takes only a few seconds to send the value but it takes a lot of time (1 - 2 min) to retrieve it from ProcessBook or any PI client (PI SMT, PI SDK application), even when the point´s annotations flag is set to 0.




The ProcessBook VBA script will get theses values and show them in a ListBox. The user choose one option and click in a button that will save the annotation into a file on user´s computer.




The server´s Snapshot_EventQueuePageSize tuning parametrer is set to 32768 (32 MB). Any clue to solve this?