An Efficient Approach for WCET Measurement of Runnables and Tasks of the Application Software: AUTOSAR compliant Multi-core partitioning
Daisy Ranawat, M. P. R. Prasad, Geetha Srinivasan · 2019 IEEE 1st International Conference on Energy, Systems and Information Processing (ICESIP) · 2019
As the performance and safety requirements on the automotive electronic control unit (ECU) is increasing rapidly., multi-core ECUs comes to fulfill these requirements. In addition to these reasons., multi-core ECUs are becoming common because of the low cost., size., and power consumption. As we are moving towards multi-core., what changes we have to do and what are the challenges will facing during migration from single core to multi-core ECUs. In automotive operations., most of the tasks have hard deadline constraint hence deadline should not be missed. But due to increasing complexity in the single core ECU deadline may miss due to loaded CPU. In multi-core ECU., chances of deadline miss are very less. There is one more reason., we are moving towards multi-core is application integration. Instead of using one ECU for one application., we can integrate two or more applications (ECUs) on a single multicore ECU. We will discuss only one application and its performance. In this paper., we will discuss a simple and manageable approach for WCET measurement of runnables and tasks by taking a battery management system as an application. The generation of Rte and Os is also described as they play an important role at RTOS level.