Multikernel Design and Implementation for Improving Responsiveness of Aperiodic Tasks

Modern real-time systems need to efficiently handle aperiodic tasks as well as periodic ones. This paper presents a system design applying the hybrid operating system approach to multi-core architectures. A core is allocated exclusively and dynamically to a newly booted kernel and an aperiodic task on it so that the task can avoid overhead caused by the rest of the system, leading to reduced response time. We implemented and evaluated the presented design on a real multi-core architecture. The evaluation results indicate that the design improves responsiveness of aperiodic tasks that access shared resources frequently.