Understanding Peer-level Performance in BitTorrent: A Measurement Study

—The observed performance by individual peers in BitTorrent can be simply measured by their average download rate. While it is often stated that the observed peer-level performance by BitTorrent clients is high, it is difficult to accurately verify this claim due to the large scale, distributed and dynamic nature of this P2P system. To provide a “representative” characterization of peer-level performance in BitTorrent, the following two important questions should be addressed: (i) What is the distribution of observed performance among participating peers in a torrent? (ii) What are the primary peer- or group-level properties that determine observed performance by individual peers? In this paper, we conduct a measurement study to tackle these two questions. Toward this end, we derive observed performance for nearly all participating peers along with their main peer- and (peer-view of) group-level properties in three different torrents. Our results show that the probability of exp...

• Type: Conference
• Year: 2007
• Where: ICCCN
• Authors: Amir H. Rasti, Reza Rejaie
• Keywords: ICCCN 2007, Individual Peers, Observed Peer-level Performance, Observed Performance