Of users in a swarm, its capacity, and empirically studies the effects of these This work relates potential gains from peer assistance to the average number Stratification - the need to match peers with others needing similar bitrate,Īnd partial participation - some peers choosing not to redistribute content. ISP friendliness - requiring peers to be within the same ISP, bitrate However, theīenefits of peer assistance can be limited by various obstacle factors such as In search of scalable solutions, CDNs are exploring P2P support. Overall, there are notable differences in the structural patterns of torrents and swarm characteristics (i) across different content categories and (ii) between single and bundle torrents. We also observe that most files (94%) in a bundle torrent are selected by users and the bundle torrents are more popular than the single (or non-bundle) ones on average. We reveal that profit-driven BitTorrent publishers who promote their own web sites for financial gains like advertising tend to prefer to use the bundling.

We find that over 72% of BitTorrent torrents contain multiple files, which indicates that bundling is widely used for file sharing. In particular, we focus on: (1) how prevalent content bundling is, (2) how and what files are bundled into torrents, (3) what motivates publishers to bundle files, and (4) how peers access the bundled files.

From the datasets of the 120K torrents and 14.8M peers, we investigate what constitutes torrents and how users participate in swarms from the perspective of bundling, across different content categories: Movie, TV, Porn, Music, Application, Game and E-book. We conduct comprehensive measurements on the current practice of content bundling to understand the structural patterns of torrents and the participant behaviors of swarms on one of the largest BitTorrent portals: The Pirate Bay.

Torrent fair game 1995