Saving portable computer battery power through remote process execution

ABSTRACT

We describe a new approach to power saving and battery life extension on an untethered laptop through wireless remote processing of power-costly tasks. We ran a series of experiments comparing the power consumption of processes run locally with that of the same processes run remotely. We examined the trade-off between communication power expenditures and the power cost of local processing. This paper describes our methodology and results of our experiments. We suggest ways to further improve this approach, and outline a software design to support remote process execution.

REFERENCES

• 1: AT&T Corp, WaveLAN/PCMCIA User's Guide.
• 2: Daniel Barbará , Tomasz Imieliński, Sleepers and workaholics: caching strategies in mobile environments, Proceedings of the 1994 ACM SIGMOD international conference on Management of data, p.1-12, May 24-27, 1994, Minneapolis, Minnesota, United States
• 3: James W. Davis, "Power Benchmark Strategy for Systems Employing Power Management," IEEE International Symposium on Electronics and Environment, 1993.
• 4: Fred Douglis, P. Krishnan, Brian March, "Thwarting the Power-Hungry Disk," USENIX Conference Proceedings, Winter 1994.
• 5: Duracell Corp./Intel Corp, Smart Battery Data Specification, Revision 1.0, February 15, 1995.
• 6: Richard Golding, Peter Bosch, Carl Staelin, Tim Sullivan and John Wilkes, "Idleness is Not Sloth," HP Laboratories, Technical Report HPL-CCD-95-1, Palo Alto, CA, January 1995.
• 7: Paul M. Greenawalt, Modeling Power Management for Hard Disks, Proceedings of the Second International Workshop on Modeling, Analysis, and Simulation On Computer and Telecommunication Systems, p.62-66, January 31-February 02, 1994
• 8: David P. Helmbold , Darrell D. E. Long , Bruce Sherrod, A dynamic disk spin-down technique for mobile computing, Proceedings of the 2nd annual international conference on Mobile computing and networking, p.130-142, November 1996, Rye, New York, United States [doi>10.1145/236387.236423]
• 9: Tomasz Imielinski , S. Viswanathan , B. R. Badrinath, Energy efficient indexing on air, Proceedings of the 1994 ACM SIGMOD international conference on Management of data, p.25-36, May 24-27, 1994, Minneapolis, Minnesota, United States
• 10: Intel Corp. Pentium Processor (610 75) Power Consumption, Revision 1.1, Technical Marketing, October 1994.
• 11: Intel & Microsoft Corp. Advanced Power Management (APM) BIOS Interface Specification, Revision 1.2, February 1996.
• 12: Dietmar A. Kottmann , Ralph Wittmann , Markus Posur, Delegating remote operation execution in a mobile computing environment, Mobile Networks and Applications, v.1 n.4, p.387-397, Dec. 1996
• 13: Kester Li, Roger Kumpf, Paul Horton, and Thomas Anderson, "A Quantitative Analysis of Disk Drive Power Management in Portable Computers," USENIX Conference Proceedings, Winter 1994.
• 14: Brian Marsh and Bruce Zenel, "Power Measurements of Typical Notebook Computers," Matsushita Information Technology Laboratory Technical Report MITL-TR-110-94, May 1994.
• 15: Shankar Narayanaswamy et al., "Application and Network Support for InfoPad," IEEE Personal Communications, Vol. 3, No. 2, pp. 4--17, April 1996.
• 16: Proxim Corp. Spread Spectrum RF Modem, User's Manual.
• 17: M. Ranganathan, Anurag Acharua, Shamik D. Sharma and Joel Saltz, "Network-Aware Mobile Programs," USENIX 1997 Annual Technical Conference, January 1997.
• 18: Michael Richmond , Michael Hitchens, A new process migration algorithm, ACM SIGOPS Operating Systems Review, v.31 n.1, p.31-42, Jan. 1997 [doi>10.1145/254784.254790]
• 19: Chris Ruemmler and John Wilkes. "UNIX Disk Access Patterns," Technical Report HPL-92-152, Computer Systems Laboratory, HP Laboratories, Palo Alto.
• 20: John M. Rulnick and Nicholas Bambos. "Mobile Power Management for Maximum Battery Life in Wireless Communications Networks," Proceedings of IEEE Infocom, 1996.
• 21: Yoichi Shinoda. Wildboar project, http://spider.fortune.co.jp/wildboar.
• 22: Mark Stemm, Randy H. Katz. "Measuring and Reducing Energy Consumption of Network Interfaces in Hand-Held Devices," Proceedings of 3rd International Workshop on Mobile Multimedia Communications (MoMuC-3), Princeton, NJ, September 1996.
• 23: Mark Weiser, Brent Welch, Alan Demers, Scott Shenker, "Scheduling for Reduced CPU Energy," USENIX Association, First Symposium on Operating Systems Design and Implementation, Monterey, CA, November 1994.
• 24: John Wilkes, "Predictive power conservation," Tecnical report HPL-CSP-92-5. Concurrent Systems Project, Hewlett-Packard Laboratories, 14 February 1992.