Title
Mobile multicores: use them or waste them
Abstract
Energy management is a primary consideration in the design of modern smartphones, made more interesting by the recent proliferation of multi-core processors in this space. We investigate how core offlining and DVFS can be used together on these systems to reduce energy consumption. We show that core offlining leads to very modest savings in the best circumstances, with a heavy penalty in others, and show the cause of this to be low per-core idle power. We develop a policy in Linux that exploits this fact, and show that it improves up to 25% on existing implementations.
Year
DOI
Venue
2014
10.1145/2626401.2626411
Operating Systems Review
Keywords
DocType
Volume
modern smartphones,multi-core processor,energy management,primary consideration,low per-core idle power,heavy penalty,best circumstance,energy consumption,core offlining,modest saving,mobile multicores
Journal
48
Issue
Citations 
PageRank 
1
14
0.68
References 
Authors
7
2
Name
Order
Citations
PageRank
Aaron Carroll133015.98
Gernot Heiser22525137.42