Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Mobile computing devices like PDAs, cell phones or laptops have become anindispensable part of everyday’s life. As these systems are battery-poweredand the user expects long operating times, energy-aware operation is crucial.Hardware components for mobile devices offer low-power operating modesthat achieve energy savings at the cost of degraded performance or applicationquality, e.g., by reducing the CPU speed. This dissertation investigatessoftware-controlled energy management and addresses these two, often conflictinggoals: increasing the embedded system’s runtime by saving energyand providing sufficient application quality. With a cooperative approach betweenthe operating system and individual applications or the user, task-specifictrade-offs between these goals can be made. Prototype implementationsfor embedded Linux are presented and evaluated with energy measurements,proving the feasibility of task-specific power management. This dissertationhas a strong practical focus, being a valuable guide for computer scientistsand software engineers both in academia and industry who deal with operatingsystem design and low-power software architectures.
