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BitTorrent Statistics
January 21, 2004
BitTorrent has exploded onto the P2P community with a fanfare that is rarely matched. Considering the efficiency and resourcefulness of this community, its popularity is not surprising.Although BitTorrent was best known for its availability of videos (i.e. TV shows) during its first days, just about any kind of file is available off this network. Its great resource of mp3 files has attracted a wide audience and allowed this community to grow to impressive heights.
In order to deliver you the latest numbers on BitTorrent, an administrator of Suprnova.org contacted us with the following information. We were allowed to deliver this information on the condition of anonymity. Suprnova.org is the largest BitTorrent tracking site, and is one of the key reasons for the network\'s success.
\"So I though that I should use the data that I have at my disposal as an
Admin of suprnova.org to see if I could generate some interesting
information. …I souped up some data that you might find interesting:
A Bittorrent popularity analysis, derived from Suprnova.org statistics.
How does Suprnova.org gather BT statistics?
Suprnova.org itself is a sort of reversed spider when it seeks out statistics. Instead of searching for trackers itself, users feed it torrent files. It dissects the torrent file and stores the tracker that the torrent uses. It then asks that tracker for a \'scrape\' list of all torrents it tracks, if the tracker supports this feature (all advanced trackers do) and if the feature is enabled (less and less these days), Suprnova.org receives a list of torrent hashes and accompanying stats (minimum is number of seeds and number of non-seed peers) and it stores this list. Then if a torrent is fed to Suprnova.org with a known tracker, it can look the torrent up by its hash and gets stats without having to immediately request a new list.
A side effect of this \'caching of hashes\' by Surpnova.org is that it has
general info about all torrents on the trackers it can poll, and not only the ones that the users feed it.
Can these stats be used for a global BT peer estimate?
Since the birth of suprnova.org (roughly 6 months ago), it has been collecting trackers, and has been gathering statistics. It has about 2100 trackers listed in its database, of which roughly 560 are actively functioning and can be polled by Suprnova.org.
All large tracker URL aliases (different tracker URLs leading to the same tracker) are filtered out. While this list of trackers is far from complete (private trackers / trackers with disabled \'scrape\'), it gives a clear indication of the usage of the largest open trackers out there.
Suprnova.org also has some other information, derived from the torrent files that were uploaded to it, of which the most interesting is the torrent\'s data file size (an indication of what kind of data is transmitted and thus the networks \'total storage\' at any time).
What are these stats then?
(Active torrents - torrents with more then 1 seed - added because there are a lot of \'dangling\' torrents with no seeds and 1-3 peers, which are not very interesting).
Statistics from the Suprnova.org global tracker cache @ 18-1-2004 3:38:
Total amount of trackers: 2,181
Total amount of active trackers: 561
Total amount of torrents: 67,354
Total amount of active torrents (seeds>0): 25,212
Total amount of seeds: 213,484
Total amount of non-seed peers: 792,983
Total amount of peers: 1,006,467
Suprnova.org torrent database data:
Total amount of torrents received to date: 97,275 (100k draws near)
Total amount of live torrents: 34,290
Total amount of live active torrents: 14,091
Total amount of seeds: 169,861
Total amount of non-seed peers: 631,246
Total amount of peers: 801,107
Average filesize active torrents: 643Mb
Average filesize all torrents: 426Mb
Combined rough stats:
* An estimation of the amount of data on the global tracker network can
be calculated by taking the average file size of Suprnova.org\'s active torrents times the amount of seeds, plus the file size times the amount of non-seed peers times 0.5: 392.4 Tb
* Roughly 60% of the torrents out there have no seeds, but these
torrents usually have only a few peers attached. (less then 10% of the total amount of peers)
* The global seed / non-seed ratio is roughly 21%/79%
* It can also be concluded that Suprnova.org knows about roughly 60% of all public torrents out there, which contain 80% of all the peers connected to the open trackers.
Which would put BitTorrent at least as nipping at the heels of the currently popular p2p programs, and that with only a very modest estimate which covers only the public trackers. Of course you have no way to verify any of this data, but I am fairly certain that there aren\'t any other groups who have that kind of detailed information about the BitTorrent network.\"
Its important to realize that this information was only collected from Suprnova.org, and does not include statistics available from other tracking sites. This conservative estimation of over 1 million peers places BitTorrent among the heavy hitters of file-sharing, such as Overnet, eDonkey and FastTrack.
Suprnova.org also has some other information, derived from the torrent files that were uploaded to it, of which the most interesting is the torrent\'s data file size (an indication of what kind of data is transmitted and thus the networks \'total storage\' at any time).
What are these stats then?
(Active torrents - torrents with more then 1 seed - added because there are a lot of \'dangling\' torrents with no seeds and 1-3 peers, which are not very interesting).
Statistics from the Suprnova.org global tracker cache @ 18-1-2004 3:38:
Total amount of trackers: 2,181
Total amount of active trackers: 561
Total amount of torrents: 67,354
Total amount of active torrents (seeds>0): 25,212
Total amount of seeds: 213,484
Total amount of non-seed peers: 792,983
Total amount of peers: 1,006,467
Suprnova.org torrent database data:
Total amount of torrents received to date: 97,275 (100k draws near)
Total amount of live torrents: 34,290
Total amount of live active torrents: 14,091
Total amount of seeds: 169,861
Total amount of non-seed peers: 631,246
Total amount of peers: 801,107
Average filesize active torrents: 643Mb
Average filesize all torrents: 426Mb
Combined rough stats:
* An estimation of the amount of data on the global tracker network can
be calculated by taking the average file size of Suprnova.org\'s active torrents times the amount of seeds, plus the file size times the amount of non-seed peers times 0.5: 392.4 Tb
* Roughly 60% of the torrents out there have no seeds, but these
torrents usually have only a few peers attached. (less then 10% of the total amount of peers)
* The global seed / non-seed ratio is roughly 21%/79%
* It can also be concluded that Suprnova.org knows about roughly 60% of all public torrents out there, which contain 80% of all the peers connected to the open trackers.
Which would put BitTorrent at least as nipping at the heels of the currently popular p2p programs, and that with only a very modest estimate which covers only the public trackers. Of course you have no way to verify any of this data, but I am fairly certain that there aren\'t any other groups who have that kind of detailed information about the BitTorrent network.\"
Its important to realize that this information was only collected from Suprnova.org, and does not include statistics available from other tracking sites. This conservative estimation of over 1 million peers places BitTorrent among the heavy hitters of file-sharing, such as Overnet, eDonkey and FastTrack.
This story is filed in these Slyck News categories
BitTorrent :: BitTorrent Community
File-Sharing/P2P Related :: Statistics/Analysis
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