Abstract
Mixed-criticality (MC) scheduling has been proposed for embedded real-time systems to alleviate the dilemma between runtime resource utilization and worst-case temporal guarantees for critical functions. The approach of dropping all low-criticality tasks upon a mode switch has been criticized for potentially over-degraded performance. In this paper, we focus on the graceful degradation for MC scheduling by providing bounded lateness for certain low-critical tasks. We define MCQOS-schedulability that massages the required bounded lateness into the definition of conventional MC-schedulability. A virtual deadline based scheduler (EDF-VDS) is proposed with utilization-based MCQOS-schedulability test and and closed-form lateness bounds.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
