Sciweavers

EMSOFT
2005
Springer

AutoDVS: an automatic, general-purpose, dynamic clock scheduling system for hand-held devices

13 years 9 months ago
AutoDVS: an automatic, general-purpose, dynamic clock scheduling system for hand-held devices
We present AutoDVS, a dynamic voltage scaling (DVS) system for hand-held computers. Unlike extant DVS systems, AutoDVS distinguishes common, course-grain, program behavior and couples forecasting techniques to make accurate predictions of future behavior. AutoDVS uses these predictions in combination to guide dynamic voltage scaling. AutoDVS estimates periods of user interactivity, user non-interactivity (think time), and computation perprogram and system wide to ensure quality of service while reducing energy consumption. We describe our implementation of AutoDVS which consists of a set light-weight, Linux, kernel modules and user library routines for the iPAQ hand-held computer. We evaluate AutoDVS using real user workloads of iPAQ software that consist of interactive and soft-real time tasks executing alone and concurrently. Our results indicate that AutoDVS decreases energy consumption significantly without negatively impacting user perception of system performance. Categories an...
Selim Gurun, Chandra Krintz
Added 27 Jun 2010
Updated 27 Jun 2010
Type Conference
Year 2005
Where EMSOFT
Authors Selim Gurun, Chandra Krintz
Comments (0)