Thread: Another VPS question! Upload speed limited :( (OpenVZ)

Hello,



I reaslise I have posted a couple of other times in this section for help regarding my VPS I made!

This is the last peice of the puzzle, I'm sure of it!

I have an OpenVZ container with 4MB of memory and 750GB of hard drive space allocated to it. I have a seedbox fully installed and working on it but the upload speed is limited to about 2MB/sec The downlaod speed is fine (10MB/Sec+).

Does anyone who know a bit about OpenVZ know any way I can fix it?

Any help or suggestions would be greatly appreciated

Originally Posted by Kitkatra

Hello,

I reaslise I have posted a couple of other times in this section for help regarding my VPS I made!

This is the last peice of the puzzle, I'm sure of it!

I have an OpenVZ container with 4MB of memory and 750GB of hard drive space allocated to it. I have a seedbox fully installed and working on it but the upload speed is limited to about 2MB/sec The downlaod speed is fine (10MB/Sec+).

Does anyone who know a bit about OpenVZ know any way I can fix it?

Any help or suggestions would be greatly appreciated

I hope you mean 4GB and not 4MB of memory.

Are you sure the upload speed is really limited, because on default everything should work fine?
Did you already tried traffic shaping with the 'tc' tool? On default OpenVZ doesn't do traffic shaping and because upload speeds with P2P can vary.
I think you should first be sure that it's defintely not the lack of possible outcoming traffic.

Hi Magister, thanks for the reply.

Yes, lol I did mean 4Gb of memory!

I have tested the speed of the VPS using SCP and I found that the upload speed of the VPS is limited to 1.9 at the most but from inside the server itself there are no such limits on upload.

I didn't understand what you said about traffic shaping but I was wondering if this could be down to a setting in openvz? Can you think of any further steps I can take to troubleshoot this problem?

Cheers :)

What company is the VPS with? It's very possible that even though a VPS is technically your own server, you may be sharing upstream bandwidth with others. If it totally seems to cap out at exactly a certain MB/s, it is more than likely that they are restricting it at a level that you will not be able to administer -- other than inquiring with them directly what the cap is, or how it works.

Originally Posted by sparc357

What company is the VPS with? It's very possible that even though a VPS is technically your own server, you may be sharing upstream bandwidth with others. If it totally seems to cap out at exactly a certain MB/s, it is more than likely that they are restricting it at a level that you will not be able to administer -- other than inquiring with them directly what the cap is, or how it works.

He bought a server and set up the VPS by himself and that's where he has troubles with.
Otherwise your reply would be good though.

Originally Posted by Magister

He bought a server and set up the VPS by himself and that's where he has troubles with.
Otherwise your reply would be good though.

Ohh, got it. I think you were on the right track with traffic shaping outgoing traffic --> Traffic shaping with tc - OpenVZ Linux Containers Wiki

That seems like the most likely candidate, I have seen similar limitations when working between VM's.. but not at ridiculously low levels like 2MB/s.

Actually, the VPS was one I made myself using OpenVZ on a dedicated server. I understand what you mean, but in this case I control the main server as well as the VPS and can get easily 10MB/Sec from within my server itself but only 2MB/Sec from within the VPS. I did the tests with the SCP command to another server to ensure it was a fair test...

Thanks for your input, I would be glad of any other suggestions regarding my problem..

EDIT: Sorry I got sidetracked while typing! Looks like two replies got here before I got round to actually posting my reply lol!!

Have you tried using that tc tool we are mentioning?

I used to use iperf when testing maximum speeds between VM's & servers, etc.

Iperf

Try using that from main server <--> VPS .... then from VPS <---> VPS to see what kind of results it yields.