带EDF的硬实时系统中非周期任务响应时间最小化

Electronics, Robotics and Automotive Mechanics Conference (CERMA'06) Pub Date : 2006-09-26 DOI:10.1109/CERMA.2006.61

L. Gutierrez, C. Franco, R. Jacinto, C.A. Gutierrez

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引用次数: 5

摘要

本文提出了一种处理周期任务和非周期任务的硬实时系统中的非周期请求服务器，采用EDF(最早截止日期优先)来调度周期任务。服务器的目标是减少非周期性任务的响应时间，并保证所有周期性任务(被认为是关键任务)的可调度性。该服务器改进了TBS(总带宽服务器)提供的响应时间，因为空闲时间、非周期性和周期性任务都被考虑到截止日期分配。验证了服务器的最优性。最后通过比较TBS和服务器在不同的周期性和非周期性负载水平下的性能评估

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Minimizing the Response Times of Aperiodic Tasks in Hard Real-time Systems with EDF

This paper presents a new aperiodic request server in a hard real-time system handling periodic and aperiodic tasks, using EDF (earliest deadline first) in order to schedule periodic tasks. The objective of the server is to reduce response times for aperiodic tasks and guaranteeing the schedulability of all periodic tasks (considered as critical tasks). This server improves the response time offered by TBS (total bandwidth server), because idle times, aperiodic and periodic tasks are considered for deadline assignment. The optimality of the server is also proved. Finally a performance evaluation is made by comparing the server with TBS in different periodic and aperiodic load levels

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Electronics, Robotics and Automotive Mechanics Conference (CERMA'06)

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