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Does utorrent give priority to peers with relevance ??


TheDude

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In the list of peers for each torrent is a column called "relevance" which appears to be the percentage of the torrent that a peer has, that you do not have.

Does utorrent give priority in uploading to those peers that have relevance, ie that have something which I need ?

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What about when you're only seeding?

Peers would have no reason to give you any data -- you already have it all!

So what criteria is used to decide who gets the biggest upload slice?

We don't want this to be the norm:

http://img384.imageshack.us/img384/4989/whyproxysrule4zb.jpg

(This picture comes from the thread http://forum.utorrent.com/viewtopic.php?id=1057 ...and is not intentional cheating on that user's part.)

In a torrent of only 44 seeds and 202 peers (possibly counting seeds+peers found via DHT/PHE), this BitComet v0.60 client is connected to only 51 (25.2%) peers but all 44 (100%) seeds. I don't think that was accidental, it's probably that BitComet drops inactive peers and aggessively connects to seeds.

Reason why that's "bad" is because if µTorrent doesn't have any good metric to go by as a seed...clients that do this may get a vastly disproportionate amount of the overall upload bandwidth available to the whole torrent.

(...especially when done in conjunction with other "tricks".)

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What about when you're only seeding?

Peers would have no reason to give you any data -- you already have it all!

So what criteria is used to decide who gets the biggest upload slice?

I was talking about the same thing here: http://forum.utorrent.com/viewtopic.php?id=4937

Right now, after downloading the torrent, and thus finishing all t-f-t exchange all remaining peers are being treated equally. Which is quite unfair, I think.

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