In a posting on his blog, BitTorrent creator Bram Cohen speaks out against Microsoft’s claim that they have developed a P2P system that is 20-30% faster then production p2p protocols like BitTorrent. Avalanche is the name of Microsoft’s new distribution protocol, we talked about it last week here.
Here is a link to Microsoft’s research paper pdf
Bram goes on to lay claim that Avalanche is vaporware and people were taking it too seriously.
“It’s a bad idea to give much weight to simulations, especially of something so hairy as real-world internet behavior. I spent most of my talk at stanford explaining why it’s difficult to benchmark, much less simulate, BitTorrent in a way which is useful.”
He also came down harshly on Microsoft’s paper on the subject, saying it was “complete garbage” as it had completely misunderstood how BitTorrent operated.
Cohen claims the method used in the paper to simulate BitTorrent’s operation is “completely rigged”, intentionally or not, against his software.
“As you’ve probably figured out by now, I think that paper is complete garbage. Unfortunately it’s actually one of the better academic papers on BitTorrent, because it makes some attempt, however feeble, to do an apples to apples comparison. I’d comment on academic papers more, but generally they’re so bad that evaluating them does little more than go over epistemological problems with their methodology, and is honestly a waste of time.”
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