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Let's all do "Seeding" it does magic to someone else's downloads!.


Jeckiez

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Sadly, seeding too many torrents at once is as bad as too few.

If you allow 4 upload slots per torrent and have 20 active torrents, which all have needy peers on them...and you only have 40 KB/sec upload speed, then you're uploading at 0.5 KB/sec per upload slot (per peer you're uploading to at any given moment) on average. In reality, probably a little lower because of overheads and failing to stay at max. Because uTorrent "jumps around" which peer it uploads to, nobody will be likely to get a complete piece to share to others from you in a timely manner -- they might need way more than an hour even for 1 MB piece size and over a day for 4 MB piece size. Meaning even though you're sharing, it takes rather long for someone to get "enough" from you so they have something to share to others.

Worse is if you allow 100 connections at once per torrent! 50-100 peers might connect to you at once on a single torrent, yet uTorrent would only upload to 1-4! 90+% of them would get nothing from you, probably ever. Staying connected to so many at once wastes your bandwidth and theirs that could better be spent uploading more to fewer peers. :(

So, the goal is to keep torrents alive and going at a semi-reasonable rate.

This means your effective max upload speed is a huge limit on how many active torrents you can run.

Almost all ADSL ISPs give <120 KB/sec upload speed max.

Most Cable ISPs are the same way.

Many have <50 KB/sec upload max.

So even 20-50 KB/sec more upload can be a big help!

To increase your upload slightly further without "suffering" from slow web browsing, you can disable Resolve IPs (right-click in Peers window/tab of a torrent) and reduce bt.connect_speed to only 1-4 (outgoing new connection attempts to MORE peers/seeds per second) and reduce net.max_halfopen to only 8. If you're unfirewalled, uTorrent will probably connect just as fast or faster to other peers/seeds...and if firewalled it will only take maybe 5-10 minutes to connect to enough peers instead of 3-5 minutes. Over many hours, that's trivial.

Because of how uTorrent handles upload slots, it's best to have at least 2 upload slots per torrent.

While ONLY seeding, you don't need lots of connections per torrent -- in fact, even 10 is "enough"...especially if upload slots are only 2 per torrent.

If you have "use additional upload slots if upload speed <90%" then uTorrent can adjust for slow times on its own.

With 2 upload slots per torrent, try to give at least 10 KB/sec per torrent (5 KB/sec per upload slot). Round up if you want, so if you're giving 35 KB/sec upload speed in uTorrent then 4 torrents at once is probably ok because each upload slot will still be getting >3 KB/sec.

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