Testing that the applications of a software product line comply with their functional as well as with their non-functional requirements (for example performance) is important for achieving the desired product quality. Existing approaches for software product line testing only deal with testing an application against its functional requirements. In this paper we present a technique that supports the development of reusable performance test case scenarios in domain engineering and the reuse of these scenarios in application engineering. The technique is an extension of the ScenTED technique for system testing from our previous work. The technique focuses on load testing and performance profiling, two types of performance testing, and it has been validated in a case study at Siemens Medical Solutions HS IM.