Brad Beyenhof wrote: > I'm not sure what you mean by PFM, but I'll do my best to answer your > questions. Firstly, the differing speeds in different clients is > probably because you're doing the download at different times. The > landscape of P2P availability is constantly changing as people connect > and disconnect to/from the web of sharers. However, different clients > may have different defautl settings (discussed below). > > PFM = "Pure Fscking Magic"
And as for download at different times, well, transmission was sitting idle with 2 peers connected, I switched to the same torrent on azureus and immediately got about 25K from 20 peers. Why the difference? > It could be a client configuration issue that only conencts to a > certain number of sharers per torrent (or total across all torrents). > However, it's also possible that downloading from less than the total > available number of peers saturates your available downstream > bandwidth, or that the tracker is making sure to only give you the > connections that are most reliable and/or closest in proximity to your > current location. > > In addition, where did you see the number of seeders listed? If it was > on the Web site where you found the .torrent file, those results are > usually pretty stale. > > There is a config for download speed and upload speed, that's all, I max out the download to unlimited, the upload I cap at 64K. Peer info can be found in the details portion of most clients Azureus actually seems to give quite a bit of info on the transfer. I figure it's getting this info from the tracker and so should be up to date. > Again, the speed issue is largely a function of how much of the file > is available. It's possible to have great speeds when you start a > torrent since everybody connected has some portion of it, but many > torrents have certain pieces of the file present in a limited number > of places (usually caused by people closing the torrent before they've > seeded it enough). In fact, I've run into several torrents where only > a portion of the file is actually available despite several peers: > people will full copies of the file (or, the only ones with the > missing pieces) had dropped out. > > All parts of the file show as available, and even were they not, it should not affect the download speed of the available parts. > P2P is great for bandwith and distribution costs, but for the > end-users the file is often only fully available following its initial > release. Too many selfish downloaders, and the system degrades to the > point of unusability. Thus, the creation of authenticated trackers > (like tvtorrents.com) that keep track of your total seeding ratio and > make sure you stay on the positive side if you want to keep using the > service. > > In any case, Linux distribution torrents are usually pretty well > seeded, as the open-source ethos lends itself to being more generous > with one upstream bandwidth. That, and people like me who keep > torrents seeding on their servers for a while after the download is > finished... I dare say that non-Linux folk are much less likely to > have always-on server machines. > > And I get all that, I just want to understand why my downloads seem to be so slow when none of that applies. With lots of seeders and even leech peers, I should be getting much better speeds, or at least I think so. Tyrion -- KPLUG-List@kernel-panic.org http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
