Arts & Sciences Events
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Arts & Sciences
[PAST EVENT] Colloquium on Friday, Dec. 5 at 3 PM in McGl 020
December 5, 2014
3pm
Title: Stephen K. Park Graduate Research Award Winner Talk ? Smartphone Energy Savings through Smart Storage Optimizations
Speaker: David Nguyen, PhD student, Computer Science, College of William and Mary
Abstract: Despite the rapid hardware upgrades, a common complaint among smartphone owners is the poor battery life. To many users, being required to charge the smartphone after a single day of moderate usage is unacceptable. In this talk, we provide an experimental study on how storage I/O path affects power levels in smartphones, and introduce energy-efficient approaches to reduce energy consumption facilitating various usage patterns. At each layer, we investigate the amount of energy that can be saved, and use that to design and implement a prototype with optimal energy savings named SmartStorage. The system tracks the run-time I/O pattern of a smartphone that is then matched with the closest pattern from the benchmark table. After having obtained the optimal parameters, it dynamically configures storage parameters to reduce energy consumption. We evaluate our prototype by using the 20 most popular Android applications, and our energy-efficient approaches achieve from 23% to 52% of energy savings compared to using the current techniques
Biography: David T. Nguyen is a Ph.D. Candidate in Computer Science at the College of William and Mary. He is working with Dr. Gang Zhou, and his research interests include mobile computing, ubiquitous computing, and wireless networking. Before joining W&M, he was a lecturer in Boston for 2 years. He was also a lecturer at Christopher Newport University in 2013. In summer 2014 David was invited to work as a Mobile Hardware Engineer in Facebook's Connectivity Lab. David received his M.S. from Suffolk University (Boston, 2010), and his B.S. from Charles University (Prague, 2007)
Speaker: David Nguyen, PhD student, Computer Science, College of William and Mary
Abstract: Despite the rapid hardware upgrades, a common complaint among smartphone owners is the poor battery life. To many users, being required to charge the smartphone after a single day of moderate usage is unacceptable. In this talk, we provide an experimental study on how storage I/O path affects power levels in smartphones, and introduce energy-efficient approaches to reduce energy consumption facilitating various usage patterns. At each layer, we investigate the amount of energy that can be saved, and use that to design and implement a prototype with optimal energy savings named SmartStorage. The system tracks the run-time I/O pattern of a smartphone that is then matched with the closest pattern from the benchmark table. After having obtained the optimal parameters, it dynamically configures storage parameters to reduce energy consumption. We evaluate our prototype by using the 20 most popular Android applications, and our energy-efficient approaches achieve from 23% to 52% of energy savings compared to using the current techniques
Biography: David T. Nguyen is a Ph.D. Candidate in Computer Science at the College of William and Mary. He is working with Dr. Gang Zhou, and his research interests include mobile computing, ubiquitous computing, and wireless networking. Before joining W&M, he was a lecturer in Boston for 2 years. He was also a lecturer at Christopher Newport University in 2013. In summer 2014 David was invited to work as a Mobile Hardware Engineer in Facebook's Connectivity Lab. David received his M.S. from Suffolk University (Boston, 2010), and his B.S. from Charles University (Prague, 2007)
Contact
Gang Zhou (gzhou@cs.wm.edu)