Paper Info
Title
Empirical analysis of power management schemes for multi-core smartphones
Abstract
Dynamic power management schemes in mobile devices such as smartphones and tablet PCs enhance battery life at the cost of prolonged user-perceived response time while the response time is a crucial factor for user experience. This paper presents systematic analysis of existing power management schemes adopted in recent smartphones in terms of user-perceived response time and energy consumption. For this analysis, we developed a latency measurement benchmark tool to quantify responsiveness to user inputs and used it with an externally-connected power meter to concurrently measure energy consumption and response latency. The evaluation showed that some existing DVFS schemes can significantly harm the response time. More seriously, the analysis revealed that the processor hotplug technique for multi-core systems may reduce responsiveness even without any gain in energy savings.
Year
DOI
Venue
2013
10.1145/2448556.2448665
ICUIMC
Keywords
Field
DocType
multi-core smartphones,response time,externally-connected power meter,empirical analysis,energy saving,energy consumption,user-perceived response time,measure energy consumption,power management scheme,response latency,prolonged user-perceived response time,dynamic power management scheme,measurement,multi core
Power management,User experience design,Computer science,Latency (engineering),Response time,Real-time computing,Mobile device,Electricity meter,Multi-core processor,Energy consumption,Embedded system
Conference
Citations 
PageRank 
References 
4
0.47
10
Authors
5
Name
Order
Citations
PageRank
Sangwook Kim140.47
Hwanju Kim229818.75
Jongwon Kim31042153.38
Joonwon Lee4143890.35
Euiseong Seo535424.20