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Jase2985
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  #2014903 12-May-2018 19:51
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borrow one from someone :)


spoonboy

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  #2014958 12-May-2018 22:15
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I've tired downloading with a static port mapping instead of UPnP and got exactly the same issue. As I've expected. 

 

I'm sure it has something to do with BigPipe network. 


 
 
 
 


Jase2985
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  #2014995 13-May-2018 06:51
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spoonboy:

 

I've tired downloading with a static port mapping instead of UPnP and got exactly the same issue. As I've expected. 

 

I'm sure it has something to do with BigPipe network. 

 

 

have you ruled out everything in your network?


spoonboy

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  #2018600 18-May-2018 21:06
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Ok, I've got some progress with investigating the issue that I would like to share.
In short, my conclusion is that Bigpipe has slow external Internet channel. Slower than Spark, at least. This is causing the issue.

 


Now, how did I find this. There is a parameter in uTorrent that specifies a max number of connected peers. It was set to 100 in my client. With Spark is was enough to get a full download speed on most of the popular torrents. But with BigPipe it never reached 10MB/s. After increasing the parameter to 300, I managed to finally get download speed of 10MB/s. With the few notices: 1) it take longer time before the full download speed is reached and 2) it's still less stable, i.e. it's fluctuating around 10 while with Spark it was pretty stable.

 

So, why increasing the number of peers improved the download? I think, because a speed of each individual peer is slower in Bigpipe. So, having just 100 sources was not enough to fully load the 100Mbps channel.

 

Is the issue solved now? Unfortunately, no. Increasing the peers number only helps when the torrent is really popular and you have hundreds of seeders. On a less popular torrent or with p2p tv, where you have to deal with a couple of dozens peers, the download speed is still significantly lower than with Spark. That's whey the P2P tv is freezing.


hio77
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  #2018601 18-May-2018 21:09
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Since BP is moving to our core soon, this may be just something to work with for a little while.





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


Jase2985
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  #2018639 18-May-2018 21:48
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If you have multiple files downloading do you still hit your "artificial limit"?

 

https://torrents.linuxmint.com/

 

try downloading one of those 18.3 iso's with your connections set to 100. those are very well seeded legal torrents im maxing out my VDSL connection.

 

if you download a file from here:
http://ucmirror.canterbury.ac.nz/linux/ubuntu/18.04/
how fast does it download?


cbrpilot
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  #2018683 18-May-2018 22:57
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I hate to sound enigmatic .... but ... 

 

There is nothing particularly wrong with the Bigpipe network.  There is just some things that the Spark network does better.  It has better secret sauce.

 

Not to worry, Bigpipe will soon get some of that sauce as it moves to the Spark core.





My views are my own, and may not necessarily represent those of my employer.


 
 
 
 


Talkiet
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  #2018695 19-May-2018 00:27
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cbrpilot:

 

I hate to sound enigmatic .... but ... 

 

There is nothing particularly wrong with the Bigpipe network.  There is just some things that the Spark network does better.  It has better secret sauce.

 

Not to worry, Bigpipe will soon get some of that sauce as it moves to the Spark core.

 

 

Nom Nom Nom.. Secret Sauce! Delicious stuff! :-)

 

 

 

Cheers - N

 

 





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Please note all comments are the product of my own brain and don't necessarily represent the position or opinions of my employer, previous employers, colleagues, friends or pets.


hio77
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  #2018696 19-May-2018 00:29
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Talkiet:

 

cbrpilot:

 

I hate to sound enigmatic .... but ... 

 

There is nothing particularly wrong with the Bigpipe network.  There is just some things that the Spark network does better.  It has better secret sauce.

 

Not to worry, Bigpipe will soon get some of that sauce as it moves to the Spark core.

 

 

Nom Nom Nom.. Secret Sauce! Delicious stuff! :-)

 

 

 

Cheers - N

 

 

 

 

now i begin to wonder what you two get up to down there... 





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


RunningMan
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  #2018801 19-May-2018 09:46
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Might be consuming too much secret sauce ;-)


spoonboy

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  #2018871 19-May-2018 11:28
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Jase2985:

 

If you have multiple files downloading do you still hit your "artificial limit"?

 

https://torrents.linuxmint.com/

 

try downloading one of those 18.3 iso's with your connections set to 100. those are very well seeded legal torrents im maxing out my VDSL connection.

 

if you download a file from here:
http://ucmirror.canterbury.ac.nz/linux/ubuntu/18.04/
how fast does it download?

 

 

Tested with  3 Ubuntu images download in parallel and got the same picture. 

 

Settings: max number connections per torrent - 100. Global max number - 300. 

 

When downloading an individual torrent the speed is about 7 MB/s.

 

Submitting all the three downloads simultaneously gives a total download speed of 9.8-10 MB/s

 

So, the issue is with the BigPipe Internet channel. 

 

It would be interesting to compare speedtest results on some overseas hosts in BigPipe and Spark. 

 

 


Coil
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  #2018900 19-May-2018 12:35
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spoonboy:

 

Tested with  3 Ubuntu images download in parallel and got the same picture. 

 

Settings: max number connections per torrent - 100. Global max number - 300. 

 

When downloading an individual torrent the speed is about 7 MB/s.

 

Submitting all the three downloads simultaneously gives a total download speed of 9.8-10 MB/s

 

So, the issue is with the BigPipe Internet channel. 

 

It would be interesting to compare speedtest results on some overseas hosts in BigPipe and Spark. 

 

 

Sorry to be this guy, but 10MB/s x8 = 80Mb/s + overheads = your line speed.
And the issue is? Trash torrents on your end?
I get the same on a 100Mb Vodafone connection using IPTorrents to download Linux Distros....

 

Doing some tests currently on my connection and I max out at 9.5 meg.


freitasm
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  #2018906 19-May-2018 12:40
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Hmmm. Ok, I don't think anyone looked at the OP - @coil is right - 10MB/s = 80Mbps.

 

Time for @spoonboy and others to check this again.





 

 

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yitz
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  #2018908 19-May-2018 12:44
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Is there is a noticeable difference in the peer flags, can you compare flags and confirm you are getting the Incoming connection flag?

 

 

 

 

Edit:

 

No - OP is saying he needs to open more connections to saturate the Bigpipe connection than on a Spark connection.

cbrpilot
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  #2019169 19-May-2018 21:05
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freitasm:

 

Hmmm. Ok, I don't think anyone looked at the OP - @coil is right - 10MB/s = 80Mbps.

 

Time for @spoonboy and others to check this again.

 

 

 

 

No I completely understand his issue.  As Yitz said he has detected that he needs far more TCP peers with Bigpipe than Spark to get from 80Mbit to 100Mbit.

 

His options are to wait a few weeks until we migrate Bigpipe to the Spark network, or move back to Spark.  

 

 

 

Another option would be to look at other RSPs, but that could be a bit hit and miss as I suspect some of them have a setup very similar to Bigpipe.  





My views are my own, and may not necessarily represent those of my employer.


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