Deluge Forum

Have you tried setting your upstream limit to about 80% of it's max? This should provide enough room for protocol overhead to not become an issue.

Setting you upstream limit to unlimited is not recommended as it could saturate your upstream.

andar wrote:Have you tried setting your upstream limit to about 80% of it's max? This should provide enough room for protocol overhead to not become an issue.

Setting you upstream limit to unlimited is not recommended as it could saturate your upstream.

OK, I tried this, and there was no noticeable difference as when I set the maximum to 100% -- in any case, my ADSL is quite asymmetric so I'm guessing it's the same with every upload speed I've tried in Deluge.

I'll keep an eye out for future versions of Deluge, and if the speed problem is solved, I'll probably go back to it -- but for now, it's KTorrent all the way...

The users who reported this were absolutely right, deluge has speed problems for now and quite a while before that. I sit and watch nethogs and iptraf and see it doesn't even follow its own upload limit. Even when the upload/saturation is controlled (or there is lack of interest from peers?), downloads still suffer. I fire up azureus on the same torrents and I go from 10-100k I get with deluge to 600KB in under 5 minutes. The reverse is also true if I go from azureus -> deluge. I'm on a 10/2Mb so it can definitely handle 10/1.3 without saturation and I consistently see it underperform. There is another box running deluge on the network and its user complains about the speed as well.... while we share a network, this box is the gateway, so there are no nat issues for deluge to deal with. Ktorrent, with the exact same port configuration, is similar to azureus in performance, it goes right up there towards the 10Mb in a matter of minutes... why isn't deluge following suite?

Using 1.0.5 from the official packages.
(I really like deluge, its ui, pythonness, and lightweightness but that all means nothing if it can't perform in the downloading arena)

phish wrote:The users who reported this were absolutely right, deluge has speed problems for now and quite a while before that. I sit and watch nethogs and iptraf and see it doesn't even follow its own upload limit. Even when the upload/saturation is controlled (or there is lack of interest from peers?), downloads still suffer. I fire up azureus on the same torrents and I go from 10-100k I get with deluge to 600KB in under 5 minutes. The reverse is also true if I go from azureus -> deluge. I'm on a 10/2Mb so it can definitely handle 10/1.3 without saturation and I consistently see it underperform. There is another box running deluge on the network and its user complains about the speed as well.... while we share a network, this box is the gateway, so there are no nat issues for deluge to deal with. Ktorrent, with the exact same port configuration, is similar to azureus in performance, it goes right up there towards the 10Mb in a matter of minutes... why isn't deluge following suite?

Using 1.0.5 from the official packages.
(I really like deluge, its ui, pythonness, and lightweightness but that all means nothing if it can't perform in the downloading arena)

I have a similar connection speed of 10/1Mb and don't have any issues with speed.. I can consistently get 1.2MiB/s.. I have just read an email on the libtorrent list that suggests the way the protocol traffic estimation is currently done may not be entirely accurate, so this could perhaps cause some of the slowdowns for some users.

fkereki wrote:I'm worried by the low, low speed of version 1.0.3. I set Deluge to use up ALL available bandwidth, and it is about 4-5 times SLOWER than version 0.5.

same problem with all 1.0.x versions

Here in Italy we have really asymmetric ADSL (max. down 7MB/s, max up 32KB/s, sad but true )
I setup max. download speed 150KB/s and max. upload speed 25KB/s but all downloads are very very slow.
If I try to download a file with >80 seeds the avg. speed is around 15KS/s..... RIDICOLOUS!!!!

I read that a lot of people has the same problem and I hope the developers can fix it soon otherwise Deluge is no more usable

What is the MTU for your interface and on your router?

Actually, can someone with the poor speed issues try building it with this copy of libtorrent: http://deluge-torrent.org/lt.tar.bz2 ? Just extract it into your source folder so it overwrites the current libtorrent folder and rebuild. I have ported a patch from libtorrent trunk to change the way protocol overhead is calculated.

I'll try tonight - anybody know of a torrent that is always seeded well? I'm thinking of an Ubuntu ISO

Yeah, probably go for 8.10 i386, desktop version. (http://releases.ubuntu.com/8.10/ubuntu- ... so.torrent)
The tracker is currently listing 986 seeds, 64 peers. I'm getting full download speed within a minute of starting, and around 100 seeds and 15 peers.

Good news! It worked. I rebuilt from the latest source and replaced the libtorrent directory. A few minutes later I got normal speeds back with Deluge. Very happy!

Nice work, Andar