perfSONAR User Q&A and Other Discussion

[Hyojoon Kim <>]

Hi all, 

We decided to play with a LIVA X 2GB/32GB eMMC node with perfSONAR 3.5. 
However, I am getting around 535Mbps instead of 940+Mbps when I initiate a 
bwctl test to another local perfSONAR node we have. Between two Dell R610 
servers with perfSONAR, we do get over 950Mbps, so it’s likely not a network 
problem. 

I have generally followed the instructions here 
(http://docs.perfsonar.net/install_debian.html), and installed three packages:
apt-get install perfsonar-testpoint
apt-get install perfsonar-toolkit-security
apt-get install perfsonar-toolkit-sysctl

I also did the Linux Tuning, which is indicated here:
http://fasterdata.es.net/host-tuning/linux/

Does anyone know what I am missing? I do have Ubuntu 14.04.3 Desktop OS on 
this. Maybe switching to the well-tested Ubuntu 12.04 is better? 

===
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:        14.04
Codename:       trusty

$ uname -a
Linux perfbox-livaxtest-01 3.19.0-39-generic #44~14.04.1-Ubuntu SMP Wed Dec 2 
10:00:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
===

Thanks,
Joon