A modified LRE-TL real-time multiprocessor scheduling algorithm

Alhussian, H. and Zakaria, N. and Hussin, F.A. and Bahbouh, H.T. (2014) A modified LRE-TL real-time multiprocessor scheduling algorithm. Lecture Notes in Electrical Engineering, 285 LN. pp. 335-344. ISSN 18761100

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Abstract

A modified version of Local Remaining Execution-TL (LRE-TL) real-time multiprocessor scheduling algorithm is presented. LRE-TL uses two events to make scheduling decisions: The Bottom (B) event and the Critical (C) event. Event B occurs when a task consumes its local utilization meaning that it has to be preempted. Event C occurs when a task's local laxity becomes zero meaning that the task should directly be scheduled for execution. Event C always results in a task migration, therefore we modified the initialization procedure of LRE-TL to select the tasks that have a higher probability of firing a C event to be scheduled for execution firstly, and thereby tasks migration will be reduced. We have conducted an independent-samples t-test to compare tasks migration using the original LRE-TL algorithm and the modified algorithm. The results obtained showed that there was a significance reduction in tasks migration when the proposed solution is applied. © Springer Science+Business Media Singapore 2014.

Item Type: Article
Additional Information: cited By 0; Conference of 1st International Conference on Advanced Data and Information Engineering, DaEng 2013 ; Conference Date: 16 December 2013 Through 18 December 2013; Conference Code:102583
Uncontrolled Keywords: Algorithms, Initialization procedures; Migrations; Modified algorithms; Multiprocessor; Multiprocessor scheduling algorithms; Preemptions; Real-time; Scheduling decisions, Scheduling
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:16
Last Modified: 09 Nov 2023 16:16
URI: https://khub.utp.edu.my/scholars/id/eprint/4515

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