Towards a responsive, yet power-efficient, operating system: A holistic approach

Le Yan, Lin Zhong, Niraj K. Jha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Although computing hardware has become increasingly more powerful, computer responsiveness is still an important issue due to multi-tasking and software bloat. We propose a holistic approach for improving computer responsiveness through user focus-aware resource management for CPU, memory, disk I/O, and graphics processing. Previous approaches only address one or two of these problems simultaneously. To the best of our knowledge, our work is the first to address disk I/O scheduling for better responsiveness. It also offers better solutions for the other problems. We also exploit the user-perceived latency to perform dynamic voltage scaling of the CPU to reduce power consumption at run-time without sacrificing responsiveness. We implemented our approach in the Linux/X Window system (henceforth referred to as Linux/X) on an IBM Thinkpad R32 laptop with mobile Pentium 4-M processor, which has two performance levels with different frequency/supply voltage settings: high (30.0W at 1.8GHZ/1.3V) and low (20.8W at 1.2GHz/1.2V). Experimental results show that user focus-aware resource management achieves a significant improvement in computer responsiveness and some in energy efficiency. For example, for TuxRacer, a video racing game, with GpsDrive, a navigation system, running in the background, it provides a reduction of 42.0% in user-perceived latency and 7.5% in energy consumption with respect to the Linux/X system.

Original languageEnglish (US)
Title of host publicationMASCOTS 2005
Subtitle of host publication13th IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunications Systems
Pages249-257
Number of pages9
DOIs
StatePublished - Dec 1 2005
EventMASCOTS 2005: 13th IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunications Systems - Atlanta, GA, United States
Duration: Sep 27 2005Sep 29 2005

Publication series

NameProceedings - IEEE Computer Society's Annual International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunications Systems, MASCOTS
Volume2005
ISSN (Print)1526-7539

Other

OtherMASCOTS 2005: 13th IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunications Systems
CountryUnited States
CityAtlanta, GA
Period9/27/059/29/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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