Please use this identifier to cite or link to this item:
Main Title: Towards Energy-Aware Multi-Core Scheduling
Author(s): Richling, Jan
Schönherr, Jan H.
Mühl, Gero
Werner, Matthias
Type: Article
Language Code: en
Abstract: There are two major current trends that can easily be identified in computer industry: (i) the shift towards massively parallelization fostered by multi-core technology resulting in growing numbers of cores per processor and (ii) the increasing importance of energy-awareness in computing due to rising energy costs and environmental awareness. In current operating systems, these two issues are often addressed independently: one component, the scheduler, assigns processes to cores and a second component manages the power states of individual cores in time. In this paper, we explain why this orthogonal treatment can lead to problems such as a considerably degraded system performance in case of on-demand processor power state management. Furthermore, we present an approach to energy-aware multi-core scheduling at the operating system level avoiding the performance penalty while still saving energy. To corroborate our argumentation and to illustrate the applicability of the presented approach, we give numbers from experiments based on Linux and current multi-core processors.
Issue Date: 2009
Date Available: 1-Oct-2018
DDC Class: 004 Datenverarbeitung; Informatik
Subject(s): energy-aware computing
green IT
operating systems
processor scheduling
multi-core processors
Journal Title: Praxis der Informationsverarbeitung und Kommunikation : PIK
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 32
Issue: 2
Publisher DOI: 10.1515/piko.2009.0017
Page Start: 88
Page End: 95
EISSN: 1865-8342
ISSN: 0930-5157
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:Inst. Telekommunikationssysteme » Publications

Files in This Item:
File Description SizeFormat 
richling_etal_2009.pdf110.52 kBAdobe PDFThumbnail

Items in DepositOnce are protected by copyright, with all rights reserved, unless otherwise indicated.