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Real-time Scheduling for CPU and Hard Disk Requirements-Based Periodic Task with Aim of Minimising Energy Consumption
Islamic Azad University, Iran.
Islamic Azad University, Iran.ORCID iD: 0000-0002-3297-0189
Islamic Azad University, Iran.
2015 (English)In: International Journal of Information Technology and Computer Science, ISSN 2074-9007, E-ISSN 2074-9015, Vol. 7, no 10, p. 54-60Article in journal (Other academic) Published
Abstract [en]

In recent years, with an increasing number ofrequests, energy, power and temperature have beenimportant keys in embedded systems, which decrease thelifetime of both CPUs and hard disks. The energyconsumption is an important issue in computer systems,particularly real-time embedded systems. The frequencyand the Revolutions Per Minute are major factors in thereduction of energy consumption in both processors andhard disk drives. Therefore, the main goal of this paper isto present a scheduling mechanism for a real timeperiodic task that can save more energy. This mechanismis based on increasing, as much as possible, the executiontime of the CPU and/or the Read/Write time of the harddisk without passing the task deadline. This will be doneby dynamically changing the CPU frequency and/or theRPM of hard disk. Our experimental results demonstratethat the proposed algorithm manages to lower energyconsumption by an average of 25% and to reduce thenumber of missed tasks by 80%.

Place, publisher, year, edition, pages
Modern education and computer science press , 2015. Vol. 7, no 10, p. 54-60
National Category
Embedded Systems
Research subject
Computer and Information Sciences Computer Science, Computer Science
Identifiers
URN: urn:nbn:se:lnu:diva-88813DOI: 10.5815/ijitcs.2015.10.07OAI: oai:DiVA.org:lnu-88813DiVA, id: diva2:1346638
Available from: 2019-08-28 Created: 2019-08-28 Last updated: 2019-08-29Bibliographically approved

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Mohseni, Zeynab

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