Users have been seeing some e-mail slow down and RPC cancel request dialog box on their Outlook 2003 clients. In order to see if the Exchange 2003 Server is having problems I changed to the mdbperfx.dll (in Performance Monitor). This added a number of new counters which I am unable to find any detailed information about. A few that I am using are listed below.
I am seeing a lot of activity on the FXGetbufferRopsCalledPerSec and a little on FXgetBufferCurrentUsersExecting and nothing on FXGetBufferRopsDeniedPerSec. I have the one line discription of these counters from KB Article 818481 but need more.
This is a large Exchange 2003 system with a few thousnad users runing clients with Outlook 2002 and Outlook 2003. I have been following the guidelines in KB Articles 839862, 916783, 9015184 and a few more to troubleshoot the problem.
FXGetBufferRopsDenied sits at about 775. I am not sure how to reset this value or where it is comming form. I would think I should see some activity on the FXGetBufferDeniedPerSec counter if RPC handling was the problem.
Any information would be helpfull.