Paper Info
Title
An Operating System Guided Fine-Grained Power Gating Control Based On Runtime Characteristics Of Applications
Abstract
Fine-grained power gating (FGPG) is a power-saving technique by switching off circuit blocks while the blocks are idle. Although FGPG can reduce power consumption without compromising computational performance, switching the power supply on and off causes energy overhead. To prevent power increase caused by the energy overhead, in our prior research we proposed an FGPG control method of the operating system(OS) based on pre-analyzing applications' power usage. However, modern computing systems have a wide variety of use cases and run many types of application; this makes it difficult to analyze the behavior of all these applications in advance. This paper therefore proposes a new FGPG control method without profiling application programs in advance. In the new proposed method, the OS monitors a circuit's idle interval periodically while application programs are running. The OS enables FGPG only if the interval time is long enough to reduce the power consumption. The experimental results in this paper show that the proposed method reduces power consumption by 9.8% on average and up to 17.2% at 25 degrees C. The results also show that the proposed method achieves almost the same power-saving efficiency as the previous profile-based method.
Year
DOI
Venue
2016
10.1587/transele.E99.C.926
IEICE TRANSACTIONS ON ELECTRONICS
Keywords
Field
DocType
energy conservation, power gating, operating system, microprocessor
Energy conservation,Microprocessor,Power gating,Engineering,Computer hardware,Embedded system
Journal
Volume
Issue
ISSN
E99C
8
1745-1353
Citations 
PageRank 
References 
0
0.34
8
Authors
8
Name
Order
Citations
PageRank
Atsushi Koshiba111.73
Mikiko Sato22211.53
Kimiyoshi Usami352875.61
Hideharu Amano41375210.21
Ryuichi Sakamoto5175.36
Masaaki Kondo616217.18
Hiroshi Nakamura7705.12
Mitaro Namiki89720.69