Upload not maxed (on low limits too)

[aylem]

I was on a torrent with just a few people, and the upload rate was never flat at the maximum I set it to (10-14K). At one stage, when there was only 1 leecher downloading from me, it hovered around 1-3K. Does uTorrent limit the rate per person, or is it something else?

It's a waste of bandwidth when it runs for hours and can on average only reach 2/3 or 3/4 of the set limit (and worse when only 1 person is downloading).

[Switeck]

I think your ISP may throttle...not sure, but I'd expect it to be worse during peak weekday evening hours. (Friday 6 PM-11 PM has to be the worst.)

µTorrent will allow your max upload to go to 1 peer IF the peer can download that fast without problems.

Are you using encrypted settings and/or running the latest version of µTorrent?

On very fast downloading torrents, there are few peers to upload TO...and those there are, are extremely slow (like 56k dial-up modems) that cannot download faster from you no matter what.

[aylem]

I don't think my ISP throttles upstream. At least this is not my impression with eMule and FTP uploading. I was using encryption (not forced), and at first version 1.6.1 but then changed to 1.7.5.

The torrent was not fast downloading at all. It was not very popular, so there weren't many peers. It's possible that the blame is on the downloaders. I could understand slow uploading to India, but there were a few from Germany and the US too.

Do you usually get flat upload speeds? I don't use BT much, so maybe I don't have the full picture, but it seems upload fluctuates much more than when using other upload forms. Maybe it's the bandwidth management to blame combined with limited upstream, so when every KB counts the problems are more apparent?

[jewelisheaven]

Depending upon total torrents running and upload slots it MAY BE that uT doesn't fully utilize your upload totally all the time. As Switeck said the peers are the first factor (if they cannot download faster, then you can't upload any faster). To see if this is the problem you can approach it through the Ctrl-P -> Queueing -> enable the box for "<90% allow more upload slots" OR change your default upload slots per torrent to 2. To see these settings at a glance you can open the speed guide (Ctrl-G) and paste a screenshot of it online if you want a critique of it.

[Switeck]

I almost always get flat upload speed at the limit I set for hours on end.

I use it as a "canary in a coal mine" to tell if/when my internet is acting up.