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Tom Potts wrote: > On Thursday 10 April 2008 08:37, Rob Beard wrote: > ... >> when a new Fedora DVD comes out it's about 3GB or so. If 100 people >> download that 3GB ISO from a site then it's going to hammer the poor >> server. If however they use BitTorrent then the ISO can be downloaded >> from hundreds if not thousands of machines which means a higher speed >> download and less strain on the main Fedora servers. Even if each >> client machine only uploads 1K per second, connecting to a few hundred >> machines soon speeds the downloads for the users downloading. > My own experience of BitT suggests that the client gets hit ! > When I've downloaded anything I generally send about 20x the data back up - ie > if I download a 300Meg video I send 6G out which is a pain on adsl. > You can normally configure the limits on the upload and download but these > frequently 'fail' and you while your downlodaing at 3Kbps your whole 256K > upload is jammed and everything else grinds to a halt. > But thats just my experience... > Tom te tom te tom > > Funny that I've never had any problems. I use Azureus with the Speed Scheduler plugin. I've setup a schedule so that between 8am and 8pm (ISP peak hours) I only download and upload at 1K/sec and it's fixed at that. The rest of the time it's set to an unlimited download speed and about 60KB/sec upload speed which leaves about 15 to 20KB free for everything else. It works rather well. By the way, you don't have to upload 20x of what you downloaded, it's a personal choice. Although you're really advised to give back as much as you download (so you have a 1:1 download ratio), you can get away with giving back less or more. Some torrents I have running have been uploading for months (Linux ISOs) and are way into the multiple GB's uploaded. Rob -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html