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An Interference-Aware vCPU Scheduling Framework for Paravirtualized Real-Time Industrial Control Systems

Authors:
Jessica Müller
Steven Dietrich
Michael Massoth

Keywords: virtualization; industrial automation; real-time sys- tems; VM scheduling; interference mitigation; vCPU classification; hypervisor scheduling; industry 4.0.

Abstract:
Virtualization enables flexible, software-defined archi- tectures in industrial automation, but introduces new challenges, such as resource contention and unpredictable latencies. This paper presents an interference-aware scheduling approach based on paravirtualized VM profiling. By dynamically classifying virtual CPUs (vCPUs) considering dominant I/O usage and preventing simultaneous execution of tasks with overlapping I/O demands, the method improves determinism and responsiveness. Simulated under realistic workloads, the scheduler significantly reduces utilization peaks, eliminates overload conditions, and stabilizes workload distribution. These results demonstrate the potential of the approach to enhance the predictability and efficiency of virtualized industrial control systems.

Pages: 16 to 22

Copyright: Copyright (c) IARIA, 2025

Publication date: October 26, 2025

Published in: conference

ISBN: 978-1-68558-316-3

Location: Barcelona, Spain

Dates: from October 26, 2025 to October 30, 2025