David Barrett wrote:
What’s the difference between “chunks prioritization within time window” and “sequential downloading”? How can you stream without sequential downloading?
You can stream if you have all chunks from the window you are showing to the user and you are able to get the next window of chunks before its show time.
The problem with sequential downloading is that peers which joined the swarm after peer p1 don't have any chunks of the file which interest p1, and thus cannot trade chunks with him. This is an issue if you'd like to provide incentives for cooperation. If you divide the stream in windows and you can download chunks within a window in any order, peers in a same window can trade chunks with a mechanism similar to BT's tit-for-tat.
cheers, Nazareno
-david------------------------------------------------------------------------*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On Behalf Of *Florent THIERY*Sent:* Thursday, October 26, 2006 6:54 AM *To:* theory and practice of decentralized computer networks *Subject:* [p2p-hackers] BT2 & Questionhttp://tech.groups.yahoo.com/group/BitTorrent/message/5481I don't get why they are not implementing a Bittorrent variant for play-while-downloading (chunks prioritisation within time window). Read a paper once about bittorrent mod, saying that's more efficient than sequential downloading. Ever heard of swarming-enabled p2p protocol for on demand ?------------------------------------------------------------------------ _______________________________________________ p2p-hackers mailing list [email protected] http://lists.zooko.com/mailman/listinfo/p2p-hackers
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