pas1972
join:2000-10-22
Hanceville, AL | reply to JimFlorida
Re: AT&T=Bellsouth Speed Throttling with uTorrent??
I'm using QOS at driver level via CfosSpeed.
Traffic shaping definitely helps a lot overall. |
|
NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
 ·Pacific Bell - SBC
1 edit | reply to pas1972
said by pas1972  :I've experienced the same situation the OP was talking about. Basically if you add your results from a speed test to the bandwidth the torrent itself is using it doesn't add up to what you'd normally get on a speed test. This leads me to believe that perhaps it's the nature of DSL for this to be an issue? I have to assume that it's the actual DSL technology that causes this since I have several friends on cable that don't experience this type of issue and can even host a game server with great pings while seeding using half their upload bandwidth. I have seen cable users posting in their forums, or the P2P forum about problems with speed and latency while using their cable connections.
There are, however, routers which can be configured for QoS control of bandwidth, broadband routers from D-Link, Linksys, and Netgear, which can be use with DSL modems, as well as cable modems.
In my experience, without QoS, torrent upload needs to be throttled to 66%, or less, of maximum upload capacity in order to not seriously drag down the connection.
Before I replaced my Westell WireSpeed B90-36R516 with the SpeedStrea 4100, I would throttle upload back to 50% of upload capacity, and I still suffered some lag with surfing, and such. Forget streaming audio, and streaming video!
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum |
|
pas1972
join:2000-10-22
Hanceville, AL
| reply to JimFlorida
I've experienced the same situation the OP was talking about.
Basically if you add your results from a speed test to the bandwidth the torrent itself is using it doesn't add up to what you'd normally get on a speed test.
This leads me to believe that perhaps it's the nature of DSL for this to be an issue? I'm not a dsl tech, so I'm not claiming any insider knowledge here. I just know that if I'm doing an upload at 26 KB/s (which is nowhere near my upload saturation of 53 KB/s) I get horrible pings in any game, I get horrible download speeds, and I get slow load times on web pages.
I have to assume that it's the actual DSL technology that causes this since I have several friends on cable that don't experience this type of issue and can even host a game server with great pings while seeding using half their upload bandwidth. Once again I'm not claiming to be a DSL guru, I'm just relaying what other people on broadband have reported to me about this situation. |
|
JimFlorida
@bellsouth.net
| reply to patrickp
Patrick,
All that means is that if I move up to Indiana, I will be able to turn on the turbo feature.
Unfortunately, the geniuses at Bell South have disabled the feature down here.
It is ironic, because they are always touting their fast download speeds if you pay an extra $23 a month. But they are doing things that result in much worse download speeds. |
|
patrickp
Patrick
join:2002-05-03
Bloomington, IL
·Verizon Online DSL
| reply to JimFlorida
My Verizon Westell 6100 "Turbo TCP" option can be check marked on or unchecked is off.
I see no difference in d/l or u/l speeds with it on or off.
Turbo TCP is accessed on this by selecting from top main menu Configuration/Turbo TCP.
--
Patrick |
|
JimFlorida
@bellsouth.net
| reply to ropeguru
TurboTCP is no longer an option that can be toggled on and off on the AT&T Southeast/BellSouth Westell 6100 modem/routers. TurboTCP either caused problems with some things and they eliminated it, or TurboTCP worked so good and never caused problems so they just built it into the firmware being always turned on. Another possibility is that they just forgot about TurboTCP and did not put it into the newer firmwares.
Just for the heck of it, I reloaded an old firmware version on my Westell 6100, but it didn't do any good. The TurboTcp option is gone.
I doubt if BellSouth "forgot" about the feature. They deliberately disabled it , lowering the upload and download speeds in the process. The feature cannot be turned on, as far as I can tell. Am I wrong? |
|
ropeguru
Premium
join:2001-01-25
Bridgeport, WV
clubs:
 ·VOIPo
| reply to nokiatech
said by nokiatech :I think you are misunderstanding the answers here. If he is uploading ANYTHING with the torrent client it will adversly affect his download speed. Chances are good his upload is being pegged when he launches that client therefor showing a very slow download in a speed test. He torrent download speed in this case will also be very low but in the end has nothing to do with the speedtest. I think I understand COMPLETELY, as that is what I said in my post.
--
FWD#: 223611 |
|
Airwolf7
Premium
join:2004-12-12
Franklin, KY
·AT&T Southeast
| reply to JimFlorida
TurboTCP is no longer an option that can be toggled on and off on the AT&T Southeast/BellSouth Westell 6100 modem/routers. TurboTCP either caused problems with some things and they eliminated it, or TurboTCP worked so good and never caused problems so they just built it into the firmware being always turned on. Another possibility is that they just forgot about TurboTCP and did not put it into the newer firmwares.
When TurboTCP was an option that could be toggled on and off I played with it and it did make a nice improvement when it was turned on.
Hold on someone is knocking at my door I be back later to ask you to describe your problems in more detail. |
|
NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC
| reply to JimFlorida
said by JimFlorida :
How do I turn on TurboTCP with Bellsouth? Have they disabled this option?
I don't know about the Westell 6100. My SpeedStream 4100 has a similar feature, but it is just "on"; no configuration.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum |
|
JimFlorida
@bellsouth.net
| reply to nokiatech
What exactly is Turbo TCP
I have the Westell 6100 modem and noticed the turbo tcp option... What exactly does this do? I searched on it but only saw one person said it was good if you ftp alot. What about gaming (ie: cod2)?
Thanks.
to forum · permalink · · 2005-12-21 02:02:09 ·
JohnInSJ
Premium
join:2003-09-22
San Jose, CA
·SONIC.NET
Turbo TCP is da bomb... basically this does traffic shaping on the modem (which is really the best place for it) for outbound traffic. It makes sure ACK packets (which are sent out, when traffic is coming in, to acknowledge each packet received) get out before any packets you are trying to send out.
Normally, a massive upload (say, P2P software or even a file upload) that fills your upload pipe 100% will kill your download speed. So on a 1.5M/256k DSL line, sending 20-22KB/sec out will choke your uplink pipe, and downloads will crawl at about 20-30KB/sec.
If you turn on TurboTCP, and re-do this same scenario, your upload speed will remain about the same, maybe .5KB/sec slower, but your download speed at the same time will be much closer to your max download speed - because TurboTCP is putting the ACK packets 'in front' of the rest of the packets fighting to get out of your modem.
Turn it on, there is *no* downside.
How do I turn on TurboTCP with Bellsouth? Have they disabled this option? |
|
nokiatech
join:2000-10-18
Stuart, FL
 ·Comcast
| reply to ropeguru
I think you are misunderstanding the answers here. If he is uploading ANYTHING with the torrent client it will adversly affect his download speed. Chances are good his upload is being pegged when he launches that client therefor showing a very slow download in a speed test. He torrent download speed in this case will also be very low but in the end has nothing to do with the speedtest. |
|
JimFlorida
@bellsouth.net
| reply to ropeguru
I am using a Westel 6100 modem. Supposedly, this has a "Turbo TCP" setting available, but I am not sure if BS has shut down this option.
If I type in launchmodem the address field, I see the BS settings, but no provision to enable Turbo TCP.
Is there a way to do it? I think that would solve the problem. Where can I access that setting? |
|
ropeguru
Premium
join:2001-01-25
Bridgeport, WV
clubs:
·VOIPo
| reply to JimFlorida
Ok, from reading all the posts, I think there is a misunderstanding.
I think what the OP is trying to say is that with uTorrent not running and nothing using his internet connection, he is getting good speeds at around 5.8Mbps. He is happy with that.
Once he starts up uTorrent and uTorrent is only downloading a mere 2hKbps, the speed test drops to 180 Kbps. Which, if uTorrent is only downloading at dialup speed, he should still see 5+Mbps on the speed test. THis I agree with.
Only two scenarios I can think of going on here. Issues with his router handling uTorrent or before the download speeds actually get going, uTorrent is allowing the upload to be saturated causing downloads to slow because the ACK packets get not get back upstream.
Was that clear as mud?? 
--
FWD#: 223611 |
|
NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC
| reply to JimFlorida
AT&T Speed Test with BitTornado running. | .jpg/thumb.jpg "127143 bytes")
AT&T Speed Test, no BitTornado download. |
»helpme.att.net/dsl/speedtest/
One of the screen shots shows the result with a couple of torrents underway. Without the torrents I get about 2,500kbps/425kbps on the test.
The SpeedStream 4100 DSL modem I am using reportedly has ACK packet prioritization enabled. I don't suffer loss of surfing speed, even when the BT upload is saturated, so I guess that the report is true.
Even so, the speed test results are impacted by the torrents. It is, after all, shared bandwidth; i.e., your DSL bandwidth is shared between your apps (and any other users, if you have a LAN).
I have the 'at&t Yahoo! HSI Pro' package. 3008kpbs/512kbps.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum |
|
karthwyne
join:2003-04-27
Atlanta, GA
·AT&T Southeast
| reply to JimFlorida
if your upload is near max, then your speedtest results will suffer because the testing server has to wait for replies from your PC that tell it it received the data, and those replies just get put in line with the data you are uploading.
another factor would be that you have 6M service. if you are using 3M with utorrent, then the speedtest could never get better than 3M (3+3=6). there are many other factors that affect this on top of the fluctuations in torrent speeds and the max connections you can have, so i would suspect that this is all expected behaviour. |
|
Mizzat
Will post for thumbs
Premium
join:2003-05-03
Atlanta, GA | reply to Airwolf7
I've had no speed problems using uTorrent. Internet speed tests are always inaccurate, because you are connecting to a volitile network, with a volitile connection.
Nice Airwolf, Slackware! More of a man than I, I love my SuSE. |
|
Airwolf7
Premium
join:2004-12-12
Franklin, KY
·AT&T Southeast
| reply to FAQFixer
said by FAQFixer :Also don't forget that even a small amount of upload traffic can have a dramatic effect on download speeds. Yes when I'm downloading I limit uTorrent to an upload of 6KBps and I can get about 100KBps more download throughput.
When I'm done downloading I will let it seed for awhile at 53KBps unless I'm going to be surfing then I limit it to 35KBps.
I got to make room for all those ACKs and other overhead. |
|
Airwolf7
Premium
join:2004-12-12
Franklin, KY
·AT&T Southeast
| reply to JimFlorida
FastAccess Xtreme 6.0 uTorrent at wide open. |
|
|
mikes60
My Paradise
Premium
join:2001-07-31
Boynton Beach, FL
·AT&T Southeast
·Vonage
| reply to JimFlorida
As I remember from the FastAccess test page, as well as other speed test pages, they all tell you not to use your internet connection during the testing.
If uTorrent is using up most of your band width, your test will show just what is not being used by uTorreent, or any other download.
--
No good deed goes unpunished. |
|
JimFlorida
@bellsouth.net | reply to upb
Let me clarify. I am referring to the general Internet download speeds measured by speed.fastaccess.com, not my torrent download speeds.
5.8 Mbits down to 180Kbits, effecting all programs, not just uTorrent. |
|
