Performance Guarantee of ADAS on Integrated ECU Concurrently Hosting Multi-Domain Applications

Since ECUs are difficult to maintain and require high hardware costs such as wiring, previously distributed ECUs are being integrated. As a result of ECU integration, multi-domain applications share hardware resources with ADAS, leading to mutual interference. In this study, we conducted research to guarantee the performance of ADAS on integrated ECU hosting multi-domain applications. At first, we quantitatively observed that performance of ADAS is affected by contention for shared resources. This led us to acknowledge the necessity of isolating ADAS from the resources used by other multi-domain applications to mitigate the impact of shared resources contention. So, we built a resource isolation environment using LXC so that the minimum required resources by ADAS can be isolated from those used by other multi-domain applications. Before deriving the minimum resource requirement for ADAS, we preliminary optimized ADAS to reduce the minimum resource requirement. Afterwards, we experimentally derived the minimum resource requirement for guaranteeing ADAS performance with the proposed algorithm. Finally, we confirmed that the performance of ADAS is guaranteed with the derived minimum resources in the environment where multi-domain applications are concurrently executed.