JuMP2start: Time-Aware Stop-Start Technology for a Software-Defined Vehicle System

Authors Anam Farrukh , Richard West

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Author Details

Anam Farrukh
  • Department of Computer Science, Boston University, MA, USA
Richard West
  • Department of Computer Science, Boston University, MA, USA


Special thanks are also given to our colleagues at Drako Motors.

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Anam Farrukh and Richard West. JuMP2start: Time-Aware Stop-Start Technology for a Software-Defined Vehicle System. In 36th Euromicro Conference on Real-Time Systems (ECRTS 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 298, pp. 1:1-1:27, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)


Software-defined vehicle (SDV) systems replace traditional ECU architectures with software tasks running on centralized multicore processors in automotive-grade PCs. However, PC boot delays to cold-start an integrated vehicle management system (VMS) are problematic for time-critical functions, which must process sensor and actuator data within specific time bounds. To tackle this challenge, we present JuMP2start: a time-aware multicore stop-start approach for SDVs. JuMP2start leverages PC-class suspend-to-RAM techniques to capture a system snapshot when the vehicle is stopped. Upon restart, critical services are resumed-from-RAM within order of milliseconds compared to normal cold-start times. This work showcases how JuMP2start manages global suspension and resumption mechanisms for a state-of-the-art dual-domain vehicle management system comprising real-time OS (RTOS) and Linux SMP guests. JuMP2start models automotive tasks as continuable or restartable to ensure timing- and safety-critical function pipelines are reactively resumed with low latency, while discarding stale task state. Experiments with the VMS show that critical CAN traffic processing resumes within 500 milliseconds of waking the RTOS guest, and reaches steady-state throughput in under 7ms.

Subject Classification

ACM Subject Classification
  • Computer systems organization → Embedded systems
  • Computer systems organization → Real-time system architecture
  • Time-aware stop-start
  • Real-time power management
  • Suspend-to-RAM
  • Partitioning hypervisor
  • Vehicle management system
  • Vehicle-OS
  • Software-defined vehicles (SDV)


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