GabrielSylar Posted October 15, 2009 Report Posted October 15, 2009 Including disk caching and advanced settings, I want to set my copy of uTorrent to seed and upload my torrents at the highest speed possible, With no regard for downloading, because I don't need to download anything, just seed what I already have. I have a cable modem that gets 4 meg up, 16 meg down. I have read all the descriptions for the advanced settings repeatedly, but still think my usage and interpretations could be off. For example, would setting allow same ip to true, enable someone to download faster from me ? I do know increasing half open connections can help via the patch. I set mine to 100, with Utorrent using 75.Thanks in advance!
Switeck Posted October 15, 2009 Report Posted October 15, 2009 Increasing uTorrent's net.max_halfopen can significantly reduce how much you upload to others.Outgoing connection attempts are using almost entirely upload bandwidth...so by increasing from the default of 8 to 75, you have increased that upload consumption rate nearly 10 times over.This is compounded by bt.connect_speed defaulting to trying 20 new outgoing connections per second (limited to so many half open connections in progress at once by net.max_halfopen).Lowering bt.connect_speed from 20 per second to 4 can reduce wasted bandwidth of retrying dead and firewalled peer/seed ip connections over and over again.Both bt.connect_speed and net.max_halfopen have NO effect on how fast you get incoming connections, so getting the green light (unfirewalled) in uTorrent is "worth more" than a very high bt.connect_speed and net.max_halfopen.If you are only running private torrents, then you gain nothing from DHT...so you might want to disable it so your torrents can upload slightly faster.Local Peer Discovery and Resolve IPs also use both download and upload but offer basically no potential speed benefits in return. (LPD might help on a massive LAN, but not on typical ADSL or cable lines.)Your cable's max speeds may be burst speeds only, with real sustainable speeds being potentially a small fraction of those amounts. On ComCast cable ISP, I can upload as fast as 300-350 KiloBYTES/second for ~10 seconds:http://img210.imageshack.us/img210/9472/utorrentcomcastspeedboo.png...but I can only continuously upload at ~120 KiloBYTES/sec:http://img185.imageshack.us/img185/8845/utorrentpyramids.pngSeeding torrents don't need or benefit from allowing many peer connections at once. So there's little gain setting max peer connections per torrent much higher than their upload slots per torrent:http://forum.utorrent.com/viewtopic.php?id=47523
GabrielSylar Posted October 15, 2009 Author Report Posted October 15, 2009 Much appreciated man. So pretty much less aggression is better when it comes to seeding. Thanks!Now if I have 50 torrents, and I set the upload to 128k per your suggestion that my isp might not be giving me a solid uploading speed, it tells me max active torrents should be set at 1. This makes me feel that 1 will be running and 49 will be sitting idle. I'm aware I am probably incorrect. I was going to set max upload at 128, 20 upload slots per, and 30 total peers. Am I on the right track ?
Switeck Posted October 16, 2009 Report Posted October 16, 2009 128 kilobit/sec upload max is kinda low for your line. What's the highest sustainable upload speed in uTorrent that you can get?
GabrielSylar Posted October 16, 2009 Author Report Posted October 16, 2009 It has stayed between 200 and 250 mb per second when set high.
Switeck Posted October 16, 2009 Report Posted October 16, 2009 Check your units, that cannot be right!If you really have 4 megabit/sec upload bandwidth, upload speeds of over 400 KiloBYTES/second should be possible in uTorrent.
GabrielSylar Posted October 16, 2009 Author Report Posted October 16, 2009 Oops, I meant 200 to 250 kb, not mb. lol !
Switeck Posted October 16, 2009 Report Posted October 16, 2009 2nd link in my signature, 2 megabit/sec upload settings...then raise upload speed max (maybe while only seeding) to 200-250 KB/sec.
GabrielSylar Posted October 16, 2009 Author Report Posted October 16, 2009 Thanks my friend. I have seen great improvements. I set everything up according to your chart, In addition, I have transp disposition in advanced set to 255,(is that good to do ?) connect speed set to 4 as per your suggestion, and everything else is default.Are there an other settings I would be wise to adjust up or down ? Lastly, cache settings. Anything specific there to stick it on ? Perhaps I should have left it at default, but since fiddling, I forgot the default cache settings LOL.Please know your help is greatly appreciated. Seems like I had been running full speed in the wrong direction LOL!
Switeck Posted December 3, 2009 Report Posted December 3, 2009 Cache settings -- make a larger than normal (>32 MB) cache, enable both read and write caching....and don't let windows do it!
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