On Mon, 2007-02-26 at 10:30 -0800, Kam Leo wrote: > On 2/26/07, Aaron Konstam <akonstam@xxxxxxxxxxxxx> wrote: > > >> > > >>Aaron Konstam wrote: > > >> I wanted to download the latest FC6 respin CDs. I went to the web > > >> location and found the correct bittorrent and clicked to download it. > > >> The bittorrent GUI opened and the download started. Now I was > > connected > > >> to a system with an Internet speed of 45 Mb/s but the GUI said the > > >> download would take 15 hours. Well the respin has 5 CDs. I have a > > >> downloaded a single 600+ Meg CD in less than an hour (actually I > > think > > >> it was much less). So I can't understand why the bittorrent download > > >> should take 15 hours. > > >> > > >> I have done this before but it has been a long time ago. I must be > > doing > > >> something wrong but what? Any ideas? > > > > > >A couple of things to check - do you have a download speed limit > > >set, so that it does not use the full bandwidth when downloading? Do > > >you have your firewall properly configured so that you can seed as > > >well as download? If not, this can limit your download speed. How > > >many seeds are there, compared to the number of clients, and how > > >many are you connected to? > > My download speed was set too high. I have no firewall set on my machine > > but the university does however they tell me that they do not restrict > > bittorrents. I don't know how to check the number of seeds and /or > > number of clients. > > > > So there are clearly holes in my knowledge. Can someone help fill in the > > gaps. > > > > > >One other thing to keep in mind is that the time estimate when you > > >first start downloading is usually high, and drops as you connect to > > >more feeds. It also tends to change during the download. Depending > > >on how the client calculates the time remaining, it may get less > > >sensitive to rate changes as the download progresses - more data to > > >average, so temporary fluctuations in download speed do not affect > > >it as much. > > The above is true but I waited 2 hours and not even 1 CD was downloaded. > > > > Bittorrent works when there are a large number of seeders and peers. > The problem with the Fedora respin is that after the initial > availability announcement the number of seeders and peers drops to a > very low number, less than 5 when I tried it. If each shares the > minimum required upload speed, 4K bits/second, the total bandwidth is > only 20K bits/second. Factor the low number of participants and the > problem of finding peers with the fragments missing from your download > and you get the current situation. Also I find that the tracker used > by Fedora respin does not work well with my setup which is behind a > firewall. > So am I conclude that >10 hours may be what it will take. How do oyu find out how many seeders are active? -- ======================================================================= The race is not always to the swift, nor the battle to the strong, but that's the way to bet. -- Damon Runyon ======================================================================= Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx
