The article you found out is regarding the Classic API of Data Access. Based on the provided information, though, I'm under the impression that you are using the contemporary Context API, more specifically, that you have an .rlinq file in your solution. If my assumption is correct, you could use the Telerik Data Access Profiler and Tuning Advisor to monitor and finetune the performance of your application. More details about the configuration of the project are available in this documentation article
Additionally, as the Visual Studio integration of Data Access was deprecated a year ago, the Profiler along with the necessary ServiceHost assembly are distributed through the Telerik.DataAccess.Profiler
I hope this helps. Let me know if you need further information.
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