Netperf is available in just about every Linux distribution’s repositories, so just install it with your package manager. $ sudo apt install netperf. After you have it on the server, run Netperf in server mode. $ sudo netserver & You can leave the server alone for now. It will continue running Netperf in server mode in the background. A Simple But Powerful Network Tool /mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/assmannst/CentOS7/x8664/netperf-2.7.0-8.3.x8664.rpm. Jul 26, 2020 NOTE: I would recommend to disable the firewall on both server and client for the monitoring purpose as at times your firewall might stop netperf from sending traffic to client machine. Server # rpm -Uvh /tmp/netperf-2.6.0-3.3.x8664.rpm warning: /tmp/netperf-2.6.0-3.3.x8664.rpm: Header V3 DSA signature: NOKEY, key ID f388ca22.
I ran yum install iperf
to install the network bandwidthtest tool Iperf on a CentOS 7system, but was informed 'No package iperf available.'When I checked the package repositories that were in use on another systemthat had iperf installed by using the command
yum repolist
, I found the following: Game pc bus simulator versi indonesia free.When I checked the repository that had been used for the installation ofIperf on that other system, I saw it was the
epel
repository.You can use
yum provides pkgname
or yum whatprovides pkgname
to see package information for pkgname Unrecognized option error for java in mac. and also the repository from which the package was obtained.When I checked the repositories in use on the system where
yum installiperf
did not install iperf, I found it had only the default repositories and did not have the epel
repository.The Extra Packages for Enterprise Linux (EPEL) is a 'community approved'repository, which is listed on the CentOS wiki under AvailableRepositories for Linux, which notes that though community repositoriesare not associated with the CentOS project, that 'These repositories arefrequently recommended by the community, are usually well maintained,and provide a substantial number of additional packages to CentOS.' The wikialso notes:
Extra Packages for EnterpriseLinux (EPEL) - (See http://fedoraproject.org/wiki/EPEL)provides rebuilds of Fedora packages for EL5, EL6 and EL7. Packagesshould not replace base, although there have been issues aroundpoint releases in the past. You can install EPEL by runningyum install epel-release. The epel-release packageis included in the CentOS Extras repository that is enabled bydefault. Support available on Freenode in #epel, on mailinglists, and its issuetracker.
On the system where the EPEL repo was in use, I found the following in
/etc/yum.repos.d
:The system where the EPEL repository wasn't used had only the followingfiles in the same directory:
I installed the EPEL repository on that system with
yum install epel-release
. I was then able to install iperfon that system with yum install iperf
and was then able torun iperf in server mode on the system.I ran
iperf -c 192.168.18.44
on another system to use iperf on the other system in client mode to test the bandwidth between the two systems. On the server end, i.e., the system where I just installed iperf and ran the iperf -s
command, I saw the following:You may have to create a firewall rule on the system functioning as aniperf server. For CentOS 7 systems, the default firewall software isfirewalld. The default port used by iperf is 5001, so you will need toopen that port in the firewall for both UDP and TCP, if you wish to use both protocols.
References:
- Available Repositories
Last edited: 2015-10-02CentOS - Community ENTerprise OperatingSystem
![Install Netperf On Windows Install Netperf On Windows](https://www.solvetic.com/uploads/monthly_10_2018/ccs-7463-0-44999500-1539183361_thumb.png)
![Windows Windows](https://hewlettpackard.github.io/netperf/training/graphics/Netperffl02.gif)
First of all what I used to have this test setup (you can adapt it to your needs)
HW :
- 2 HP Blade on same enclosure chassis with 10Gig HP Flex NICs. (servers)
- HP VC Flex 10 (the network device)
Software :- Centos 5.4 x64
- I only installed core GNU packages + development libraries. No unnecessary service/software loaded. Even I took XWindow(Gnome/KDE) out of the package and run the system in rulevel 3.
- Disable Firewall/SELinux
- netperf rpm (ftp://ftp.netperf.org/netperf/netperf-2.4.5.tar.gz)
I made the first run of the test using single Vnet (counterpart of VLANs in HP Virtual Connect). You can also use the same tools to create a setup that utilize Shared Uplink Sets (trunk links on VC). In order to set this up create a Vnet for your load VLAN(Vnet_LOAD). Create the profiles for the blades and assign one FlexNIC with 100Mb to management VNet and the other one to VNet_LOAD (10Gb)
Netperf is based on client server model. After installing the software on both blades you execute different processes on different nodes. netserver as the name states is the server part of the test suite. You can also use the
[root@SERVER ~]# netserver
Starting netserver at port 12865
Starting netserver at hostname 0.0.0.0 port 12865 and family AF_UNSPEC
while netperf is the tool that executes the test and gives output.
Install Netperf On Windows 9
[root@CLIENT ~]# netperf -H SERVER -l 15
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to SERVER (*******) port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 15.00 9387.92
The default test is TCP_STREAM you can also define other tests like UDP Request Response to fully saturate Full Duplex Link :
[root@CLIENT ~]# netperf -t UDP_RR -H SERVER -l 15
UDP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to SERVER (*********) port 0 AF_INET
Socket Size Request Resp. Elapsed Trans.
bytes Bytes bytes bytes secs. per sec
[root@CLIENT ~]# netperf -t UDP_RR -H SERVER -l 15 -c -C
UDP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to SERVER (*******) port 0 AF_INET
Socket Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem
Send Recv Size Size Time Rate local remote local remote
Install Netperf On Windows 6
bytes bytes bytes bytes secs. per sec % S % S us/Tr us/Tr
129024 129024 1 1 15.00 20964.03 2.06 2.03 15.759 15.481
For detailed documentation and command line options you can check :
http://www.netperf.org/netperf/training/Netperf.html#0.2.2Z141Z1.SUJSTF.8R2DBD.J
Install Netperf On Windows 8
On the next parts of the series I will focus on different types of throughput/load tests like multi flow & multi IP throughput testing using netperf & some Linux tweaking and IP multicast testing using MGEN.