Operating System Services for Task-Specific Power Management

Andreas Weißel

ISBN 10: 3639416279 / ISBN 13: 9783639416275

Editore: AV Akademikerverlag Mai 2012, 2012

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Neuware -Revision with unchanged content. Mobile computing devices like PDAs, cell phones or laptops have become an indispensable part of everyday's life. As these systems are battery-powered and the user expects long operating times, energy-aware operation is crucial. Hardware components for mobile devices offer low-power operating modes that achieve energy savings at the cost of degraded performance or application quality, e.g., by reducing the CPU speed. This dissertation investigates software-controlled energy management and addresses these two, often conflicting goals: increasing the embedded system's runtime by saving energy and providing sufficient application quality. With a cooperative approach between the operating system and individual applications or the user, task-specific trade-offs between these goals can be made. Prototype implementations for embedded Linux are presented and evaluated with energy measurements, proving the feasibility of task-specific power management. This dissertation has a strong practical focus, being a valuable guide for computer scientists and software engineers both in academia and industry who deal with operating system design and low-power software architectures.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 140 pp. Englisch.

Codice articolo 9783639416275

Dati bibliografici

• Titolo: Operating System Services for Task-Specific Power Management
• Editore: AV Akademikerverlag Mai 2012
• Data di pubblicazione: 2012
• Lingua: Inglese
• ISBN 10: 3639416279
• ISBN 13: 9783639416275
• Rilegatura: Taschenbuch
• Condizione: Neu

Descrizione articolo

Riassunto

Revision with unchanged content. Mobile computing devices like PDAs, cell phones or laptops have become an indispensable part of everyday's life. As these systems are battery-powered and the user expects long operating times, energy-aware operation is crucial. Hardware components for mobile devices offer low-power operating modes that achieve energy savings at the cost of degraded performance or appli­cation quality, e.g., by reducing the CPU speed. This dissertation investigates software-controlled energy management and addresses these two, often conflicting goals: increasing the embedded system's runtime by saving energy and providing sufficient application quality. With a cooperative approach between the operating system and individual applications or the user, task-specific trade-offs between these goals can be made. Prototype implementations for embedded Linux are presented and evaluated with energy measurements, proving the feasibility of task-specific power management. This dissertation has a strong practical focus, being a valuable guide for computer scientists and software engineers both in academia and industry who deal with operating system design and low-power software architectures.

L'autore

Dr.-Ing. Andreas Weißel, Dipl.-Inf. (Friedrich-Alexander-University Erlangen-Nuremberg), Dipl.-Kfm. (University of Hagen). Project leader at the DSPG Technologies GmbH (formerly NXP Semiconductors Germany GmbH), Nuremberg; Member of the Supervisory Board of the Config e.G., Buckenhof.