[UCI-Calit2] CS Seminar Series Talk - Friday April 12

Anna Lynn Spitzer aspitzer at calit2.uci.edu
Mon Apr 8 14:40:25 PDT 2013


Computer Science Seminar Series Talk 

Title: 			Functionality, Performance, and Power
Consumption Challenges in Smartphones

Speaker: 		Sung-Soo Lim , Kookmin University, South Korea

Time: 			11 a.m.-noon

Date: 			Friday April 12
 
Location: 		Donald Bren Hall, room 6011

Abstract:
Smartphone vendors are competing for newer functionality and improved
performance and power consumption.
Architectural advances in CPUs, peripheral components and software have
enabled development of more powerful smart devices with lowered power
consumption. The smartphone market competition has driven participating
vendors to actively accommodate more complicated and feature-rich
software/hardware combinations resulting in increased difficulty in
systematic analysis of performance and power consumption. This talk
introduces functional and technological trends in recent smartphones and
discusses the challenges we currently face to make advances towards the
next generation smartphones.

We performed diverse performance and power consumption evaluations for
up-to-date versions of Android-based smartphones and the partial results
will be shown in this talk. A performance analysis framework considering
all the layers of the smartphone software stack has made it possible to
systematically identify and reduce performance bottlenecks at both
applications and system-levels.

A number of ongoing novel approaches in both hardware and software
techniques will be introduced. Such techniques include hardware-level
virtualization support, a paired multi-core feature called big-little
architecture from ARM, flash memory file system optimizations, and
system-level power consumption management called governor and hot-plugs.
A few accomplishments from collaborative projects with a representative
smartphone vendor will be shown with preliminary experimental results,
and the issues and potential subjects for further academia-industry
collaborations will be discussed.

Biography

SUNG-SOO LIM received his B.S., M.S. and Ph.D. degrees in computer
engineering from Seoul National University in 1993, 1995 and 2002,
respectively.
>From 2000 to 2001, he was a visiting researcher at the University of
Illinois at Urbana-Champaign. From 2001 to 2004, he was the CTO of
PalmPalm Technology, Inc. in Korea (a smartphone development company).
Lim currently is an associate professor in the School of Computer
Science at Kookmin University. His research area includes cyber physical
systems, real-time operating systems, real-time performance analysis,
low-power technology and mobile phone architecture.







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