Title :
Having your cake and eating it too: Energy savings without performance loss through resource sharing driven power management
Author :
Jae-Yeon Won;Paul Gratz;Srinivas Shakkottai;Jiang Hu
Author_Institution :
Department of Electrical and Computer Engineering, Texas A&
fDate :
7/1/2015 12:00:00 AM
Abstract :
Typically in computer systems, performance must be traded-off to achieve energy savings or, conversely, performance gains come with significant energy overhead. Here, we present a novel approach that can achieve synergistic energy-savings and performance gain in chip multiprocessors (CMPs). Our key observation is that per-core dynamic voltage/frequency scaling (DVFS) can be used as a client regulation mechanism for shared resources on-die. Based on this observation, we propose a new DVFS technique inspired by TCP Vegas, a congestion control protocol from the IP-networking domain. Full system simulations on PARSEC benchmarks show that our technique reduces total CMP energy dissipation by over 40% with a small performance improvement.
Keywords :
"Resource management","Benchmark testing","Throughput","Performance gain","Delays","Transistors","Energy consumption"
Conference_Titel :
Low Power Electronics and Design (ISLPED), 2015 IEEE/ACM International Symposium on
DOI :
10.1109/ISLPED.2015.7273523