-1
votes
0answers
15 views

IRQ Balancing-RSS-Flow affinity

I am playing with a multi-core system, in which i would like to get maximum ip packet forwarding performance.I am getting 1.2Mpps with Ubuntu 14.04, with new ixgbe driver. But when i am allocating ...
1
vote
1answer
146 views

Getting URL of YouTube video with `youtube-dl` is slow, without downloading video

I want to get the URL using youtube-dl, and the "simulate" option -g that does not download the video. So I gave the following command: youtube-dl -g https://www.youtube.com/watch?v=k4JGSAmu4lg ...
0
votes
0answers
264 views

WIFI performance poor on lenovo X201 running Ubuntu 14.04

I am running the latest Ubuntu on a Lenovo thinkpad X201, but noticed that the networking with wireless was performing poorly. To confirm that it was not the router or any other external source of the ...
2
votes
1answer
38 views

Mouse slow proportionally to network usage

Under ANY network loading the Logitech mouse gets slow. At download speeds of as low as 50KB/s, clicks are "grabby," a click will pick up an object and any movement will move it around. At rates above ...
0
votes
0answers
206 views

Samba performance with NAS

My question is simple : how to get the maximum performance with Samba shares with NAS. Here is my smb.conf file : # # Sample configuration file for the Samba suite for Debian GNU/Linux. # # # This ...
0
votes
0answers
101 views

IPSec Offload support in 82576GB controller for Linux

Due to migration of servers to cloud computing, we bought several NICs that support mechanisms like SRIOV and VMDQ. Furthermore, as security risk was also a concern and we did not want to create more ...
0
votes
0answers
218 views

Slow download rate hogging up the WiFi

tl;dr: On one computer, slow network connection consumes the entire bandwidth, affecting both internal wifi adapter and when browsing through a phone modem. comment: I posted this issue on Super ...
2
votes
1answer
4k views

Extremely slow network transfers in one direction

File transfers from my home server (running Ubuntu 12.04 Server) to any other PC on my LAN (all running Windows 7) are extremely slow, but file transfers in the other direction (uploading to the ...
0
votes
1answer
1k views

Messed up with sysctl settings on Precise. Is there a way to restore defaults?

In a quest to improvise internet speed on my slow broadband, I messed up with the below tcp settings in sysctl.conf after following instructions from here. I edited the sysctl.conf, performed "sysctl ...
0
votes
1answer
44 views

Occasional latency spike between two servers

4 servers on a private network which all talk to each other using dedicated 1gbps network adapters. When I mtr from one to another, out of 100 requests, I'll get 98 that are 0.2ms or 0.3ms, 1 which is ...
1
vote
0answers
162 views

Handling a very large number of network interface aliases

I have what is probably a bit of an unusual problem. I'm developing a network stress testing tool for internal use, and one of the things I need is to simulate a lot of entities each with their own IP ...
0
votes
2answers
354 views

Cat 6 Only 100mbit speed

I tried two different cat6 cables directly connected between my two ubuntu machines. This one I ordered online: http://www.amazon.co.uk/gp/product/B002SQPDXS/ref=wms_ohs_product only achieves 100mbit ...
3
votes
2answers
3k views

Unable to start netperf server

I am working on Ubuntu 12.10 and I just installed netperf by apt-get install netperf. Then I tried to start netperf server by running netserver and I got Unable to start netserver with 'IN(6)ADDR_ANY' ...
1
vote
0answers
875 views

Why is 12.04 slowing down my home network? [closed]

I have two PCs on my network; one is a Windows 7 PC and the other is running Ubuntu 12.04. My PC is the one with Ubuntu and it is slowing down the network not only for me but for my husband as well. ...
4
votes
2answers
6k views

How to reduce TCP latency for gaming?

I use Ubuntu for gaming. In competitive gaming every millisecond matters. I know that many people who use Windows use something called Leatrix Latency Fix which is basically a script that modify ...
1
vote
5answers
7k views

Ubuntu 11.10 network speed [closed]

Just upgraded to 11.10 from 11.04 . My internet speed is VERY slow now. I did a speed test with two similar laptops. The one running windows has a download speed of 14Mb/s while the one running Ubuntu ...
0
votes
1answer
571 views

Why is my laptop's wireless Internet connection slow?

I'm sitting on the same level as my wireless router but still the internet is acting pretty slow. PING any-fp.wa1.b.yahoo.com (69.147.125.65) 56(84) bytes of data. 64 bytes from ...
3
votes
1answer
5k views

How do I disable TCP Window Scaling?

TCP Window Scaling is part of RFC1323 - TCP Extensions for High Performance I'm on Ubuntu 10.10 at the moment. For an immediate effect I have run the following: sudo sysctl -w ...
7
votes
3answers
4k views

Tips for debugging Samba performance?

Samba gives me 24 MB/s read and 44 MB/s write, while ftp gives 97 and 112 MB/s under the same circumstances. The documentation says that Generally, you should find that Samba performs ...