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Perfmon WCF Calls don't match load test calls

Apr 27, 2010 at 5:46 PM

Hi All,

Firstly, sorry Rob for spamming this discussion list with my 3 questions. I just want to check if anyone else has any experience with these issues.

Theoretically, WCF Calls in Performance Monitor should be equal to the "Total Calls - Failed Calls" in the load tests. This is true in most cases. But I found out that if I ran the load tests long enough, the Calls in Performance monitor is always slightly higher than the total calls minus failed calls in the load test. Sometimes the number difference is quite a rounded number (example: 20). This indicates that the there were more calls received on the server-side than the client actually sent. Anybody have a clue where those extra calls in perfmon comes from?