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Related Experiment Video

Updated: Sep 30, 2025

A Simple Migration/Invasion Workflow Using an Automated Live-cell Imager
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Task Migration and Scheduler for Mixed-Criticality Systems.

Jeanseong Baik1, Jaewoo Lee2, Kyungtae Kang1

  • 1Department of Computer Science and Engineering, Hanyang University, Seoul 04763, Korea.

Sensors (Basel, Switzerland)
|March 10, 2022
PubMed
Summary
This summary is machine-generated.

This study presents a cost-effective method for scheduling low-criticality (LC) tasks in safety-critical systems by utilizing neighboring resources. The approach enhances LC task schedulability without compromising high-criticality (HC) tasks.

Keywords:
mixed-criticalityreal-time systemsscheduling algorithmssystem analysis and designsystem implementationtask migrationvehicle safety

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Area of Science:

  • Computer Science
  • Software Engineering
  • Embedded Systems

Background:

  • Increasing interference between software components in safety-critical domains like autonomous driving.
  • Low-criticality (LC) tasks can influence high-criticality (HC) tasks, necessitating their own safety guarantees.
  • High computational resource costs for guaranteeing LC tasks in safety-critical systems.

Purpose of the Study:

  • To develop a safety-guaranteed and inexpensive scheduling method for LC tasks.
  • To leverage computational power from neighboring systems in distributed environments.
  • To avoid the need for additional hardware components for LC task scheduling.

Main Methods:

  • Theoretical and practical provision of scheduling solutions.
  • Utilizing computational resources from neighboring systems in a distributed manner.
  • Implementing a task-level approach with task migration for LC tasks.

Main Results:

  • Extended schedulability of LC tasks without violating HC tasks.
  • Task-level MC scheduler demonstrated higher compatibility, recovering all dropped LC tasks compared to system-level (25.5%).
  • Task-level scheduler incurred higher HC task violation (70.3% vs 15.4% overhead).

Conclusions:

  • Task-level approach with migration offers higher sustainability for LC tasks under specific conditions (HC task ratio < 47% at 80% utilization).
  • The method provides a balance between LC task recovery and HC task violation.
  • Viable solution for resource-constrained safety-critical systems.