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The Journal of Supercomputing

, Volume 62, Issue 3, pp 1167–1188 | Cite as

Energy efficient peer-to-peer file sharing

  • Helmut HlavacsEmail author
  • Roman Weidlich
  • Thomas Treutner
Article

Abstract

This paper reveals the power saving potential of P2P file sharing in two cases; popular and unpopular files. For popular files, we derive, with regard to BitTorrent, an expression for the optimal time seeders should support leechers. For unpopular files, we extend an existing model by taking into account leechers’ power consumption dependent on the load. Leechers are assumed to build a temporary cluster within the P2P-overlay. We determine the required number of active leechers to cope with a given load and compare results from an analytical model to simulation. We demonstrate that it is possible to reach almost optimal energy efficiency for the download scenario by comparing the local case without cooperation with the distributed case where leechers cooperate.

Keywords

BitTorrent File sharing Energy efficiency Seeding time Proxy Task virtualization 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Helmut Hlavacs
    • 1
    Email author
  • Roman Weidlich
    • 1
  • Thomas Treutner
    • 1
  1. 1.Department of Distributed and Multimedia SystemsUniversity of ViennaViennaAustria

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