WCF performanceCounters
<system.serviceModel>
<diagnostics performanceCounters="All" />
</system.serviceModel>
At the command line run "perfmon". Right click on the graph and select "Add Counters ..."
Select "ServiceModelService" on the "Performace object:" pull down
Select counters from list as needed
The msdn docs: http://msdn2.microsoft.com/en-us/library/ms735098.aspx