Morgenstern Posted January 24, 2010 Report Share Posted January 24, 2010 I have a 30Mbit full Duplex Line. I have tested this on many occasions and I can up- and download with 30Mbit simultaneously to FTP, Rapidshare, Speed Tests and so on.But with utorrent there is this strange phenomena: when I reduce the upload limit to 10Mbit my download speed always enhances!Windows 7 64 bit EnterpriseI have no router and no software firewall.netmax halfopen is at 50 in utorrent.I included a pictureIt starts fast, when there are not as much downloads. Then it slows down. Then you see the download speed up again, thats when I reduced from 30Mbit to 10Mbit:Have you any ideas? My speed is pretty good, I had utorrent downloads at 20 Mbits too, but i always goes faster when limiting the upload speed per torrent. Link to comment Share on other sites More sharing options...
DreadWingKnight Posted January 24, 2010 Report Share Posted January 24, 2010 Try reducing your upload only to about 25-27mbit instead of letting it run at 30.Also, an increased net.max_halfopen is useless. Link to comment Share on other sites More sharing options...
Morgenstern Posted January 24, 2010 Author Report Share Posted January 24, 2010 I tried reducing it to 25 and 20, but ~10MBit it always gives me the best download.At the moment I have a download with 850kb at 10MBit upload. I set it to 20;bit and dropped down to 650. Set it back, back at 850.And why is an increased net.max_halfopen useless? There was this patch for Windows XP to allow more than 10 and it definitely boosted utorrent alot. But maybe this was coincidence? Link to comment Share on other sites More sharing options...
DreadWingKnight Posted January 24, 2010 Report Share Posted January 24, 2010 It was pure coincidence because halfopen limits affect how fast OUTBOUND connections can be established, not how fast data can travel over them. Link to comment Share on other sites More sharing options...
Switeck Posted January 24, 2010 Report Share Posted January 24, 2010 We cannot see what your upload speed was doing in that picture...If you're not able to actually UPLOAD as fast as you're telling it to, download can be crippled. What cabling are you using from your computer to internet connection? Link to comment Share on other sites More sharing options...
Morgenstern Posted January 24, 2010 Author Report Share Posted January 24, 2010 @DreadWingKnightThx alot for this information!@Switeck:Upload speed always goes up to the maximum in a few seconds.Cabling:Full switched network to my house -> 100Mbit full duplex connection from the switch to the box in my apartment with glass fiber -> box limits it to 30MBit full duplex -> ethernet to gigabit card in PC, full duplex is on.No modem, router, firewall (except from Windows 7).I use PeerBlock when using utorrent.My idea was that some seeder slow me down when upload is to high since some trackers want slower updates so the torrents stay online longer. I once was subscribed at one tracker that only allowed 500kb/sec maximum upload because of this reason. Link to comment Share on other sites More sharing options...
DreadWingKnight Posted January 24, 2010 Report Share Posted January 24, 2010 I use PeerBlock when using utorrent.Bleh. Not another one that subscribes to that paranoia. Link to comment Share on other sites More sharing options...
rnr Posted January 24, 2010 Report Share Posted January 24, 2010 PeerBlock does nothing, your ip is still visible to the public. Link to comment Share on other sites More sharing options...
Morgenstern Posted January 24, 2010 Author Report Share Posted January 24, 2010 @rnrSure my IP is visible but it blocks at least some of the addresses that are known to spy on/sue you.For me its like using my mobile in a crowd where anybody can here what I say...but at least I don't stand in front of some police officers doing it.I see no harm in using it? Link to comment Share on other sites More sharing options...
DreadWingKnight Posted January 24, 2010 Report Share Posted January 24, 2010 Sure my IP is visible but it blocks at least some of the addresses that are known to spy on/sue you.And leaves you wide open for an even larger number that do, as well as blocking a LOT of IP addresses that don't.It's not worth the system resources to waste on the effect. Link to comment Share on other sites More sharing options...
Morgenstern Posted January 24, 2010 Author Report Share Posted January 24, 2010 But for sure it has nothing to do with my problem since I tried it without Peerblock too and come to the same results. Link to comment Share on other sites More sharing options...
DreadWingKnight Posted January 24, 2010 Report Share Posted January 24, 2010 Your preferences - queueing and preferences - bandwidth settings may reveal some of the problem. Link to comment Share on other sites More sharing options...
Switeck Posted January 24, 2010 Report Share Posted January 24, 2010 I'm guessing you're using settings from my speed chart? (2nd link in my signature)Any advanced settings in uTorrent changed? Link to comment Share on other sites More sharing options...
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