The simulation of an IoT infrastructure in terms of equipment, service layer and application require calibration of the inputs of the simulator. The different layers of the model proposed in the ETSI TS 103 840 document have an impact on the overall system. The aim of oneM2M-profiler is to propose a measurement architecture making it possible to extract measurements from particular real execution on given equipment, from a particular oneM2M stack for a particular application. Those measurements should be generalized at the simulator level to give KPIs having values as close as possible to the reality of deployment on other equipment for IoT applications with different configuration and behaviour.