#Tamosoft throughput test packet loss install#
#Tamosoft throughput test packet loss full#

Interval Transfer Bandwidth Total Datagrams We also see that iperf3 is the least consistent in its sending rate. Without that flag, all tools showed considerable loss.įrom these results we find that iperf2.0.8, iperf3.1.7, and nuttcp8.1.4 all do well, but iperf2.0.5 can not even do 1Gbps. We show some sample results for all 4 tools, doing 9Gbps UDP testing between 2 fast servers on a 10Gbps network.įor all tools, use the '-w2m' to increase the window size to reduce packet loss. Note that not all options are supported by all tools.

#Tamosoft throughput test packet loss full#

Iperf3 is the default if -tool is not specified.įor the full list of options supported by pScheduler, run: pscheduler task throughput -help The basic commands for each tool are: pscheduler task -tool throughput -dest receive_host -source send_host

#Tamosoft throughput test packet loss install#

If you wish to use iperf2 on a CentOS6-based host, it is highly recommended to install iperf2.0.8 or later from source. PerfSONAR's pScheduler tool can be used to run all of these tools. In particular, there are known UDP issues with iperf2.0.5 and iperf3.1.4 or earlier, and these versions should be avoided for UDP testing. :-)įor all 3 tools we recommend running the latest version, as all tools have been getting important updates every few months. In particular if you want detailed JSON output. Use iperf2 for parallel streams, bidirectional, or MS Windows-based tests.Note that all three of these tools are under active development, and the the list of unique features for a given tool will likely change over time.īased on our experience, we recommend the following: If you want to test parallel stream performance, you should use a multi-threaded tool such as iperf2.

One key difference is whether or not the tool is single-threaded or multi-threaded. Its best to be familiar with multiple tools, and use the right tool for your particular use case. Some of the more popular tools include:Įach of these tools has slightly different features, and slightly different architectures, so you should not expect any one tool to have everything you need. There are a number of open-source command line tools available for Unix that measure memory-to-memory network throughput.