Temporal safety for real-time multiprocessor systems
type: Dataset
description: The hard real-time systems are characterized by sets of tasks for which are known the deadline, the arrival model (frequency) and the Worst-Case Execution Time (WCET). We focus on the scheduling of these systems on multiprocessor platforms. One of the main issues of this topic is to ensure that all deadlines are met. We go further by focusing on the temporal safety which we characterized by the properties of (i) robustness and (ii) sustainability. The robustness consists in providing an interval on the increases of (i-a) WCET and (i-b) frequency in such a way that the deadlines are met. The sustainability consists in ensuring that no deadline is missed when the following constraints are relaxed : (ii-a) WCET (decreasing), (ii-b) frequency (decreasing) and (ii-c) deadline (increasing). The robustness amounts to tolerate unexpected behaviors while the sustainability is the guarantee that the scheduling algorithm does not suffer from anomalies because of a relaxation of constraints. We consider fixed-priority scheduling for which any job of a task is scheduled with the same priority. Firstly, we study the property of robustness in off-line scheduling approaches without migration (partitioning). We deal with the case of tasks with or without shared resources. Secondly, we study the property of sustainability of an online restricted-migration scheduling approach without shared resources
identifier: NNT: 2011PEST1019
issued: 2026-05-26T03:55:05.066919
language: fr
modified: 2026-05-26T03:55:05.066925
contact point: Organization
  fn: CCSD
keyword: infoeu-reposemanticsdoctoralthesis
keyword: infoinfo-ohcomputer-science-csother-csoh
keyword: multiprocesseur
keyword: multiprocessor
keyword: ordonnancement
keyword: real-time
keyword: robustesse
keyword: robustness
keyword: safety
keyword: scheduling
keyword: surete
keyword: sustainability
keyword: temps-reel
keyword: theses
keyword: viabilite
landing page: https://pastel.hal.science/tel-00668537

Temporal safety for real-time multiprocessor systems
type: Distribution
format: HTML
issued: 2026-05-26T03:55:05.154813
modified: 2026-05-26T03:55:05.031449
access URL: https://pastel.hal.science/tel-00668537

test_moissonnage_selune
type: Agent