A Performance Study of BitTorrent-Like Peer-to-Peer Systems

This paper presents a performance study of BitTorrent-like P2P systems by modeling, based on extensive measurements and trace analysis. Existing studies on BitTorrent systems are single-torrent based and usually assume the process of request arrivals to a torrent is Poisson-like. However, in reality, most BitTorrent peers participate in multiple torrents and file popularity changes over time. BitTorrent-like systems have become increasingly popular for content distribution and file sharing, and have contributed to a large amount of traffic on the Internet. In this paper, the authors have performed extensive trace analysis and modeling to study the behaviors of such systems.