I was observing degradation in performance between my client and server on cloud deployment. I was researching if network latency was the issue and how to measure network bandwidth between client and server.
I started by looking at existing tools that would help my investigation. The first tool that i got interested based on my reading of blogs etc was Iperf3
From my experience so far, its very straight forward and easy to use. Its written in the C.
- Download the source code.
tar -xvf iperf-3.1.6.tar.gz
- Next install the c compiler for building the source code.
My environment was AWS, so it easy to install development tools which has c compiler included (and more)
sudo yum groupinstall “Development Tools”
- Compile, build the iperf from code base.
sudo -s (I got some permission issue when it tried to install with ec2-user)
./configure; make; make install
(The build will fail on AIX because of this bug – https://github.com/esnet/iperf/issues/312)
- Start iperf on the server using the server mode option
- Start iperf on the client using the client mode option
./src/iperf3 -x.x.x.x -t 10000
Larger image content at https://blogshri.files.wordpress.com/2017/08/iperf.jpg?w=1400
The iperf3 documentation has the details of all the option and possibilities.