Dr. swap: Energy-efficient paging for smartphones

  • Kan Zhong
  • , Xianlu Luo
  • , Xiao Zhu
  • , Duo Liu*
  • , Tianzheng Wang
  • , Dan Zhang
  • , Weichen Liu
  • , Edwin H.M. Sha
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

27 Scopus citations

Abstract

Smartphones are becoming increasingly energy-hungry to support feature-rich applications, posing a lot of pressure on battery lifetime and making energy consumption a non-negligible issue. In particular, DRAM is among the most demanding components in energy consumption. In this paper, we propose DR. Swap, an energy-efficient paging design to reduce energy consumption in smartphones. We adopt emerging energy-efficient non-volatile memory (NVM) and use it as the swap area. Utilizing NVM's byte-addressability, we propose direct read which guarantees zero-copy for read-only pages in the swap area. Experimental results based on the Google Nexus 5 smartphone show that our technique can effectively reduce energy consumption.

Original languageEnglish
Title of host publicationISLPED 2014 - Proceedings of the 2014 International Symposium on Low Power Electronics and Design
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages81-86
Number of pages6
ISBN (Print)9781450329750
DOIs
StatePublished - 2014
Externally publishedYes
Event2014 ACM/IEEE International Symposium on Low Power Electronics and Design, ISLPED 2014 - San Diego, CA, United States
Duration: 11 Aug 201413 Aug 2014

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
ISSN (Print)1533-4678

Conference

Conference2014 ACM/IEEE International Symposium on Low Power Electronics and Design, ISLPED 2014
Country/TerritoryUnited States
CitySan Diego, CA
Period11/08/1413/08/14

Keywords

  • Energy
  • Non-volatile memory
  • Paging
  • Smartphone
  • Swapping

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