Grabware

Windows · Developer Tools

iPerf2

A tool for measuring TCP and UDP network performance

Version 2.2.1 · by Mark Gates, Alex Warshavsky, Ajay Tirumala, Jim Ferguson, Jon Dugan, Feng Qin, Kevin Gibbs, John Estabrook, Andrew Gallatin, Stephen Hemminger, Nathan Jones, Gerrit Renker, Robert J. McMahon, Tim Auckland

Download

Official site: sourceforge.net

About iPerf2

A network traffic tool for measuring TCP and UDP performance. The goals include maintaining an active iperf 2 code base (code originated from iperf 2.0.5), preserving interoperability with iperf 2.0.5 clients and servers, preserving the output for scripts (new enhanced output requires -e), adopt known 2.0.x bug fixes, maintain broad platform support, as well as add some essential feature enhancements mostly driven by WiFi testing needs. Also added python code to centralize test control.

Iperf 2 vs iperf 3 major differences: Iperf 2 here has timing related stats including end/end packet latency w/histograms (clocks assumed to be synced); supports multicast including SSM; supports threaded operation; supports L2 length checks. Iperf3 is a "cleaner" code base per a rewrite; supports json output; uses a test connection; is single threaded.

Iperf2 and iperf3 do not interoperate.

How to install iPerf2

  1. Click Download — the developer's official website opens in a new tab.
  2. Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
  3. Prefer the command line? With Chocolatey you can install and update it with: choco install iperf2
  4. Open iPerf2 once it finishes installing.
How to install Windows software with Chocolatey

Frequently asked questions

Is iPerf2 free to download?

Yes. The Download button sends you to sourceforge.net, the developer's official site, where iPerf2 is available to download. Grabware doesn't host or modify any files.

What is the latest version of iPerf2?

The version listed here is 2.2.1, published /Date(1730. The developer's site always has the newest release.

How do I install iPerf2 from the command line?

With Chocolatey, run: choco install iperf2. This installs it from the official source and keeps it updated.

Is iPerf2 safe?

iPerf2 downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.

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