Scheduler killing other bandwidth

[niroth]

Hi guys.

I've been a long time Azureus user and have come across to uTorrent. I really do like it but I have a major problem.

During the day I'm on peak traffic so I am using the scheduler to drop the speed down to 1kb up and down. The problem with this is that it seems to affect not just my uTorrent traffic, but ALL of my network traffic. I cannot transfer files efficiently when the scheduler is on, but if I turn it off, everything speeds up. I've tested this and it is the same every single time.

Turn the scheduler on, and it kills my network traffic

Turn the scheduler off, and my network traffic speeds up to full speed. This includes internet network usage, as well as local network usage, such as moving a large file across the network.

Is this a known issue? Does the scheduler change something in windows? Is it designed to limit the traffic through a given network card?

Something is wrong, can someone help?

Jase

[Switeck]

Scheduler doesn't reduce the max number of connections that µTorrent makes, so at 1 KB/sec up and down very many connections' overhead will be greater than that.

Either set Scheduler higher or have it disable during those hours.

There's also an upload only mode.

[niroth]

I submit that it will affect utorrent traffic.... but can the scheduler affect OTHER network traffic.

[Switeck]

It might if it starts spontaneously dropping packets to stay under the 1 KB/sec limits. Or worse, creates "broken packets" (incomplete packets) that can resemble a hostile attack on a connection.

Or with the same half open connection rate, connections would be attempted then dropped halfway through the connection process leaving many, perhaps 100's of half open connections...because bandwidth wasn't available (due to the low limits) to complete the tasks.

[niroth]

Well that certainly makes sense. I would love to know exactly how the scheduler lowers traffic. Now that I think about it, something like this couldn't really change anything other than the program itself, of the entirity of traffic for a network card. It's all very interesting. I'll just disable the scheduling when I need to get high bandwidth from that machine on my network.

Thanks for your help.

Jase

[Switeck]

Many network cards/routers/modems aren't designed to have 100's of connections at once -- especially in a half open state which eats into their limited intrenal ram.

They can crash...either with a "soft" crash that may just cause them to slow down, or with a "hard" crash that totally stops ALL networking activities and even bluescreens windows.