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실시간 멀티코어 임베디드 시스템에서 메모리 간섭 축소를 위한 실행 지연 가능 태스크 실행 모델
장혁수(Hyeoksoo Jang),박시형(Sihyeong Park),김형신(Hyungshin Kim) 한국정보기술학회 2024 한국정보기술학회논문지 Vol.22 No.2
As the requirements for real-time embedded systems continue to grow, multi-cores are being adopted However, due to interference between cores due to shared memory, the execution time of the task may increase. To solve this problem, task execution model such as Acquisition Execution Restitution(AER) has been proposed. However the proposed model may reduce the throughput or increase the overall execution time. In this paper, based on AER, we propose a task execution model that utilizes cache to delay the execution of tasks that can be executed simultaneously. Experiments showed that the proposed execution model reduces interference due to memory sharing between cores and reduced execution time by up to 35%.