The Bittorrent P2P File-Sharing System: Measurements and Analysis

  • Johan Pouwelse
  • Paweł Garbacki
  • Dick Epema
  • Henk Sips
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3640)


Of the many P2P file-sharing prototypes in existence, BitTorrent is one of the few that has managed to attract millions of users. BitTorrent relies on other (global) components for file search, employs a moderator system to ensure the integrity of file data, and uses a bartering technique for downloading in order to prevent users from freeriding. In this paper we present a measurement study of BitTorrent in which we focus on four issues, viz. availability, integrity, flashcrowd handling, and download performance. The purpose of this paper is to aid in the understanding of a real P2P system that apparently has the right mechanisms to attract a large user community, to provide measurement data that may be useful in modeling P2P systems, and to identify design issues in such systems.


Mirror System Global Component Download Speed Average Download Download Bandwidth 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Johan Pouwelse
    • 1
  • Paweł Garbacki
    • 1
  • Dick Epema
    • 1
  • Henk Sips
    • 1
  1. 1.Department of Computer Science, Parallel and Distributed systems groupDelft University of TechnologyDelftThe Netherlands

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