Iperf3 Mac Os X Download

 
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Iperf3 allows you to specify the port you want to listen to, the format for the reporting if you want the app to run in server or client mode, and so on. The collected data can be sent to a log file or the JSON format. At the same time, iperf3 enables you to set the maximum size for the TCP. Download Mac OS X Leopard 10.5 latest version standalone offline setup DVD ISO image. Mac OS X Leopard 10.5 Review Apple is continuously increasing the stability and the security of the Mac OS X. Mac OS X 10.5 Leopard is a very reliable operating system, providing a lightweight environment with a sleek and user-friendly interface to handle all.

Compiling and Using iperf3 on OS X

iperf is a free and open source network testing utility that allows you to measure the speed of IP networks. It has been around for many years and has undergone some major updates along the way. Because of its long history and many iterations, I have always found it a little confusing to get started with. For the purposes of this blog, I am going to focus on the latest incarnation which is iperf3. The official home of iperf3 is http://software.es.net/iperf/.

I primarily work with Wi-Fi and I use iperf3 to test the performance of wireless networks. Download old mac os yosemite. If you work with wired networks, have no fear; the steps I outline below will serve you equally well. If you are intimidated by using the command line and the thought of compiling an application from source code makes you break out in a cold sweat, this blog post may not be for you. However, many folks have turned iperf3 into precompiled software that can be purchased for use on OS X or iOS through the respective App Stores. There may be commercial versions available for Windows and Android as well, but I am too lazy to look. Finally, if you are comfortable with Linux or FreeBSD, there are precompiled binary distributions for those platforms. Check the iperf3 web site for links.

iperf3 can be used in a variety of ways, but I find it especially useful in change impact analysis. I run iperf3 to establish a baseline. I then make one or more changes to the network and run my iperf3 tests again to see if the results changed. I also use iperf3 to test the current load on a wireless network. If I have measurements from a time when the network was underutilized, I can compare those results to what is currently happening on the network and make some determination about what users are experiencing. iperf is a great way to put some numbers behind your observations. You can tell somebody that their network is running slowly or you can show them actual performance metrics to back it up.

To get started you will need to download the latest version of the iperf3 source code. The link to the download site is:

If you need a specific version, they are all listed on the site. The latest version at the time of this writing is 3.1.2 and I will refer to that version through the examples. Although there is a quick link at the top of the site named “iperf-3-current.tar.gz” that will always download the latest version, spend a few extra seconds and locate the latest version in the list. If you do that, you will find three separate files:

  • iperf-3.1.2.tar.gz - the source files in a compressed archive
  • iperf-3.1.2.tar.gz.sha256 - the sha256 cryptographic hash of the source archive file
  • iperf-3.1.2.txt.asc - a text file with information about the current version of iperf3

Download the compressed archive file and the sha256 file.

Open the Terminal application

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Change to the directory containing the two files you just downloaded. On my system that command looks like this:

cd ~/Downloads

The tilde character (~) is a shortcut for the path to your home directory. On an OS X system, that would typically be something like /Users/johndoe and the longhand version of the above command would be:

cd /Users/johndoe/Downloads

Run the following command to generate the sha256 hash for the archive file:

shasum -a 256 iperf-3.1.2.tar.gz

That should return a long string of text that looks something like this:

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f9dbdb99f869c077d14bc1de78675f5e4b8d1bf78dc92381e96c3eb5b1fd7d86 iperf-3.1.2.tar.gz

Compare that string of text to the contents of the iperf-3.1.2.tar.gz.sha256 file (it’s a text file and can be viewed in your favorite text editor). They should be an exact match. If there is any difference, then you may have downloaded a compromised version of the archive file and you should stop immediately, not open the archive, and certainly not compile the source code. Admittedly this is a rare occurrence, but it never hurts to be careful and spend a few extra minutes on good security. Also keep in mind that the sha256 value will be different if you are working with a different version of the files. Don’t worry if you don’t match what I recorded here. Focus on what your system calculates and compare that to the contents of the .sha256 file you downloaded.

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Everybody has their own way of setting up a build environment. I like to keep the source archive files in one directory (usually Downloads) and create a dedicated directory (cleverly named “Build”) where I extract the archives and compile the software. Both Downloads and Build sit at the top of my home directory. That is the model I will be using here and you are welcome to adapt the commands to suit your own setup.

I begin by changing to my Build directory and then I unarchive the iperf-3.1.2.tar.gz file.

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cd ~/Build
tar xvfz ~/Downloads/iperf-3.1.2.tar.gz

You should have a new directory named iperf-3.1.2 sitting in your Build directory. Change into that directory:

cd iperf-3.1.2

For your edification, be sure to read the INSTALL text file located in the iperf-3.1.2 directory. It has detailed instructions on how to compile and install the software. Oh good, you’re back. Let’s continue by running the configure command to set our compile options.

./configure

Chemoffice free download for mac. By default iperf3 will be installed in the /usr/local/bin directory. If you prefer a different location, you can run the configure command with the --prefix= option. For example, if I wanted the software installed into my home directory in a folder called iperf3, then I would run this command:

./configure --prefix=/Users/johndoe/iperf3

I omitted the ~ character in the example above because it was hard to read squished up next to the equal sign, and, more importantly I discovered, prefix demands an unambiguous full path.

If you have compiled software before and/or if you already have Xcode installed, you should see the configure command do its thing and spew many lines of text across your Terminal window. However, if this is your first time compiling software, you may see this window appear:

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