emtec666 Posted September 14, 2006 Report Share Posted September 14, 2006 I'm planning to upload a very large torrent, around 40 Gb. Now when I set it to auto-detect my guess is 4 Mb pieces will be created. However it's a multi-file torrent and it has to be possible to (efficiently) snatch single files from the torrent (there will be around 50 files in it).I found a little info on this on http://wiki.theory.org/BitTorrentSpecificationHowever, now that hosting storage and bandwidth are not tightly constrained, it is best to keep the piece size to 512KB or less, at least for torrents under 8-10GB or so, even if that results in a larger torrent file, in order to have a more efficient swarm for sharing files.So my question is: in terms of efficiency would it be best to pick the the smallest possible piece size below 65535 (in this case 1 Mb pieces) or higher? Or is it better to create a torrent with less pieces?Maybe someone here has experience with this and can offer some advice Link to comment Share on other sites More sharing options...
DreadWingKnight Posted September 14, 2006 Report Share Posted September 14, 2006 The highest piece size my torrent maker (TorrentBuild) will make in automatic mode is 2MB.Smaller pieces make for more protocol overhead.Larger pieces make for larger redownloads on hashfails. Link to comment Share on other sites More sharing options...
emtec666 Posted September 15, 2006 Author Report Share Posted September 15, 2006 2 Mb pieces might be a good compromise thanks for the advice Link to comment Share on other sites More sharing options...
Snapphane Posted September 15, 2006 Report Share Posted September 15, 2006 Maybe not so much information, just a personal comment. I feel that large torrents, with small files, like 100 GB of MP3s are often annoying to download. Why? Because the size of the pieces, like you said ends up at 4 MB, resulting in 1-2 pieces per torrent.This doesn't have all that much of an effect, unless you are waiting for a certain file, that is stuck on a slow uploader. Even with high priority, it takes for ever to get down. Many pieces on a file, increase the speed of the download, according to what I feel. Not sure if this is true, just feels like that to me.Of course there is the problem with putting too much strain on the tracker when it handles a lot of pieces, so I guess that a compromise is the best solution. In the end I leave it all up to you and the professionals =) Just saw a good chance to voice my opinion on the matter. Link to comment Share on other sites More sharing options...
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