![]() I’m taking an approach of viewing all the important benchmarks (latency, extra bandwidth necessary, offload percentage) as central to the whole thing, and running realistic simulations constantly to get a good idea for what they are and help optimize them.” This very important benchmark number is generally speaking not even mentioned for most p2p live streaming solutions, and I get the feeling that the developers don’t even know what the value is. “My actual extra bandwidth used will be less than 10%. In terms of overhead, I’m shooting for making a swarm able to work with only 20% extra upload capacity, which is subtly different from having 20% extra overhead – because there’s noise in real networks, there needs to be some slop for when things get bad.” “Lower latency doesn’t require extra bandwidth, it just requires that everything be designed from the ground up for low latency. However, Bram disagrees on this, as he explained to TorrentFreak. According to some, such a low latency could mean that a lot of potential upload capacity would go lost. In his tweet Bram Cohen focused on an extremely low latency of less than 5 seconds, so content will not have to buffer for minutes before the stream starts. “I am fundamentally a technologist, and am simply not interested in working on something which doesn’t solve the fundamental problem it’s supposed to tackle, especially in a market where there have already been so many bad technologies which failed to succeed based on sales and marketing,” he added He further explained that everything has to be redone in order to make BitTorrent compatible with live streams, “including ditching TCP and using congestion control algorithms different from the ones we’ve made for UTP,” Bram said. “Doing live properly is a hard problem, and while I could have a working thing relatively quickly, I’m doing everything the ‘right’ way,” Bram told TorrentFreak. Getting BitTorrent to work effectively with live streams requires several major adjustments. There are still a lot of problems to solve though, before the first version becomes available to the public. I intend on changing that,” Bram told us. “I think there’s a very large market for live in general, and to date noone has proven that a p2p solution can meet the real-world requirements for being an acceptable live solution. He told us that his BitTorrent-powered live streaming implementation is still in an early stage of development, but he hopes to have a working version ready “sometime next year”. This comment did of course peak our interest, so we decided to get in touch with Bram Cohen to ask him what he’s up to exactly. ![]() “Tribler’s live streaming benchmarks are a joke. Last week he tweeted that he will beat Tribler’s solution in terms of delay. There are currently a few dozen people working on P2P-based live streaming, and they are soon to be joined by Bram Cohen, the inventor of BitTorrent. Last year we reported that CNN had experimented with a P2P-based live stream, and the Tribler research team has already shown that it’s possible to use BitTorrent to stream live footage. To keep video services from collapsing and to save bandwidth costs, it seems almost inevitable that content providers will have to look at P2P-based streaming solutions. Thus far the demand for video continues to grow, and it is even expanding to live video. At the same time it’s also resulting in huge bandwidth bills for streaming sites such as YouTube. The online video streaming revolution has hugely increased the use of bandwidth by individual consumers.
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