Optimising uTorrent

CliffyG

CliffyG

CliffyG

Soldato
Joined
18 Oct 2002
Posts
17,859
Location
Cambridge
I'm having trouble getting good performance out of uTorrent and can only think it's the way i have it configured. No matter how many or few torrents i am downloading and regardless of how many seeds / peers i never get over 300kb/s. I generally sync at around 5.5mb so there is plenty more room.

My current settings are:
Uploads limited to 60kb/s (sync at 866).
Global Max Connections: 800
Peers per Torrent: 150
Upload Slots per Torrent: 15

Any ideas how i can speed things up?
 
Which ISP? If it maxes out at a certain speed (might vary during the day) it's likely to be a cap at their end.

Do you have a little green tick at the bottom of the program?
 
ISP is UKFSN, when i signed up there were no caps / traffic shaping. I have a Cisco 800 series (852w i think) and yes port forwarding is setup. Speed is the same no matter what time of day.

Here's a speedtest i did just now:

 
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IMO you upload is too high, this can actually slow down your connection.

UKFSN is fine, all me mates are on it an i migrate tomorrow :p

Also google for " optimize torrents" and visit the first couple of results, you want to hack the tcp.sys file in xp and set you max half open connections in utorrent higher, there i a guide on those sites

"If you’re on XP sp2, your TCP connections are limited to a maximum of 10. This might hurt your downloading speed because it wont let you connect to as much peers as you want. It is supposed to slow down viruses because their spreading strategy is to connect to a high amount of ip numbers, but it could cripple your torrent downloads.
 
as far as i know, you will never max out all the bandwidth using any torrent app, im on 4 meg bb and it never goes above 250kB/s even if there are millions of seeds. i would be quite. i also assume you mean kilobytes and not kilobits?? in your first post? i would be very happy man if could download over 300 kB\s
 
This may be a little counter-intuitive, but try turning down the number of connections (both on a per-torrent and global basis).

@eggcup: I assure you it is possible to saturate your downstream cababilities using bittorent. I routinely get 1.1MB/s on my 10meg line.
 
eggcup said:
as far as i know, you will never max out all the bandwidth using any torrent app, im on 4 meg bb and it never goes above 250kB/s even if there are millions of seeds. i would be quite. i also assume you mean kilobytes and not kilobits?? in your first post? i would be very happy man if could download over 300 kB\s
Click to expand...

250kB/s on a 4Mbps connection sounds like a 2Mbps cap on torrents applied at the ISP end to me. I've certainly maxed out my connection before all this annoying traffic shaping stuff came in.

gizmoy2k said:
IMO you upload is too high, this can actually slow down your connection.
Click to expand...

He's got about 88kB/s upload to play with by the looks of his speedtest so 60kB/s shouldn't adversely affect his download speed, but it's worth trying 15kB/s upload just to be sure.
 
i have seen linux distros come down at 750k/sec on a 8mb line, They tend to have lots of seeds and are a good test of how your torents are working.

:cool:
 
My upload has to be at most 45 if i dont want to slow down my downloads ( out of 70 kb top speed upload).
Try lowering UL to 50 or so.
Also reduce the max global connections, you may be overloading your router a bit.
 
check eventvwr probably the 4226 issue (exceeded max connections or something)

if you're on XP, then patch the tcpip.sys with this http://www.lvllord.de/?url=downloads&lang=en#4226patch (the site looks quite *****, but i can assure you it's kosher :) -if your AV tries to tell you it's a virus, that is because it patches a system file)

perhaps increase the number of connections per torrent too

you seem to know what you're on about so i won't suggest trying another torrent source :)

-set your upload to say 10-15 as a test, i can max out my 10mb ntl with upload set to this (any higher and it effects the firefox speeds for the rest of the network)


also there are new beta's on the utorrent site (they update it a few times a week!)
 
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I'll try setting the upload a bit lower then and dropping max connections.

Does that patch stop XP from only having 10 consecutive IP connections?
 
yes, the 10 thing

you can run it in commandline so you can choose whatever you want (instead of 50)

i just use the nlite patcher to set it to 1000 on mine

-try increasing the max connections to each torrent
 
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