How do I find out maximum throughput of a WCF service?
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I am load-testing a WCF service with NetTcpBinding. To do so, I have a unit test which makes call to the service and asks for X number of data results and I use this unit test in a loadtest(Visual Studio 2010).

The problem is I do not know a way to find out what is the maximum throughput of the service. I keep changing the number of users/clients in the loadtest and try to see if I am getting results any faster. Is there any better way to do it?