Publication details

L. Abeni, T. Cucinotta, D. Casini. "Period Estimation for Linux-based Edge Computing Virtualization with Strong Temporal Isolation," (to appear) in Proceedings of the 3rd Real-time And intelliGent Edge computing workshop (RAGE 2024), May 13, 2024, Hong Kong.

Abstract

Virtualization of edge nodes is paramount to avoid their under-exploitation, allowing applications from different tenants to share the underlying computing platform. Nevertheless, enabling different applications to share the same hardware may expose them to uncontrolled mutual timing interference, as well as timing-related security attacks. Strong timing isolation through SCHED_DEADLINE reservations is an interesting solution to facilitate the safe and secure sharing of the processing platform: nevertheless, SCHED_DEADLINE reservations require proper parameter tuning that can be hard to achieve, especially in the case of highly dynamic environments, characterized by workloads that need to be served without knowing any accurate information about their timing. This paper presents an approach for estimating the periods of SCHED_DEADLINE reservations based on a spectral analysis of the activation pattern of the workload running in the reservation, which can be used to assign and refine reservation parameters in edge systems.

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Related works

This paper reuses and extends the period detection technique already published in

T. Cucinotta, F. Checconi, L. Abeni, L. Palopoli, "Adaptive Real-Time Scheduling for Legacy Multimedia Applications," ACM Transactions on Embedded Computing Systems (ACM TECS), Special Section on Embedded Systems for Real-Time Multimedia, Vol.11, No.4, December 2012.
T. Cucinotta, F. Checconi, L. Abeni, L. Palopoli, "Self-tuning Schedulers for Legacy Real-Time Applications," in Proceedings of the 5^th ACM European Conference on Computer Systems (EuroSys 2010), Paris, France, April 2010.
T. Cucinotta, L. Abeni, L. Palopoli, F. Checconi, "The Wizard of OS: a Heartbeat for Legacy Multimedia Applications," in Proceedings of the 7^th IEEE Workshop on Embedded Systems for Real-Time Multimedia (ESTImedia 2009), Grenoble, France, October 2009.

Last updated on
18 March 2024