why do SSRS reports run longer for a particular user We have been receiving complaints from a particular SSRS user that her reports run slow.  I investigated in the ExecutionLog table in the ReportServer database and I observed something strange.

Fairly consistently, the TimeDataRetrieval is much longer than other users.  Both TimeProcessing and TimeRendering are near the averages of other users.

I am puzzled.  The reports all use the same shared data source that runs as a service account.  I would think if it was a crappy user computer issue, I would see differences in the rendering time.  Same if there was a network issue.

I don't know where else to look - any ideas?
Converted to answer, per OP.

Check the SET settings for her session (sys.dm_exec_sessions). I wonder if she has different SET ARITHABORT or other settings compared to the other users, in which case she might be getting a different plan for the same underlying query.