Title :
PoliSave: Efficient power management of Campus PCs
Author :
Chiaraviglio, L. ; Mellia, M.
Author_Institution :
Politec. di Torino, Torino, Italy
Abstract :
In this paper we study the power consumption of networked devices in a large Campus network, focusing mainly on PC usage. We first define a methodology to monitor host power state, which we then apply to our Campus network. Results show that typically people refrain from turning off their PC during non-working hours so that more than 1500 PCs are always powered on, causing a large energy waste. We then design PoliSave, a simple web-based architecture which allows users to schedule power state of their PCs, avoiding the frustration of wasting long power-down and bootstrap times of today PCs. By exploiting already available technologies like Wake-On-Lan, Hibernation and Web services, PoliSave reduces the average PC uptime from 15.9h to 9.7h during working days, generating an energy saving of 0.6kW/h per PC per day, or a saving of more than 250,000 Euros per year considering our Campus University.
Keywords :
Web services; microcomputers; power aware computing; Hibernation; PoliSave; Wake-On-Lan; Web services; Web-based architecture; campus PC usage; host power state monitoring; networked devices; power consumption; power management; Energy consumption; IP networks; Linux; Power demand; Protocols; Servers; Software;
Conference_Titel :
Software, Telecommunications and Computer Networks (SoftCOM), 2010 International Conference on
Conference_Location :
Split, Dubrovnik
Print_ISBN :
978-1-4244-8663-2