Iperf Windows Binary

[Trinh Livingston]

Projectweb seems to move from to Here one can find releases up to very recent 3.7; released 2016-06-21. However, when following links from there to find latest Windows binary, I ended up back at -download.php#windows.

Or what is the relation between and New developing team? Fork? There is no indication of project being moved on any of the websites. Both state that: iPerf3 is principally developed by ESnet / Lawrence Berkeley National Laboratory.

Note that ESnet does not distribute binary packages of iperf3. All ofthe packages listed in this section are provided by third parties, whoare solely responsible for their contents. This is an incomplete listof binary packages for various operating systems and distributions:

In theory, the .tar.gz files produced by GitHub contain the samecontents as what are in the official tarballs, note that the tarballsthemselves will be different due to internal timestamps or othermetadata. Therefore these files will not match the published SHA256checksums and no guarantees can be made about the integrity of thefiles. The authors of iperf3 always recommend downloading sourcedistributions from the the directory above (or a mirror site), andverifying the SHA256 checksums before using them for any purpose, toensure the files have not been tampered with.

Primary development for iperf3 takes place on CentOS 7 Linux, FreeBSD 11,and macOS 10.12. At this time, these are the only officially supportedplatforms, however there have been some reports of success withNetBSD, OpenBSD, Windows, Solaris, Android, and iOS.

edit2: 5/23/17 Thanks to @Datalink for letting me know site was down. Back up now, if your having issues flush your dns had to move it to different host. Added site to my monitoring so next time it goes down will know right away

I'll start testing my powerline stuff too (TP Link TP6030s - same as the 6010 but with 3 x 1Gbps ports on each device). My Xbox, TV and WDTV will be connected to it so need to make sure it can handle it all! :yes:

It would be very interesting to get some powerline adapter real world numbers sure.. The one's the OP got show 500mbps, but wireless makers say that new router is 450mbps 2.4, which will all know is a crock of sh_t!

I have noticed couple of things not working on windows with this build, the zerocopy -Z is not supported, that is kind of a given. But the -J for json output causes a stackdump as well, so don't use those ;)

Get the TP-Link TL4010 kit, like $30 on Newegg and gave me 10MB/s* copy speeds between my laptop and the NAS connected to a 1Gbps switch. They were also in the same room, same outlet even so not "normal" usage but just wanted to get a general idea of what they are capable of.

Well the link rate is good info to know, so software is useful for that and firmware updates.. So looks like the link rate it reports is pretty close to the money then which is good validation with your file copy.

The software on the Network tab will show you details of the other devices you have plugged in. In my case I have 4 so 3 show up on the Network tab. To see the info of the local one you have to plug into it or something connected to it which would show on the Status page. Doesn't show much info though, you can just change the Network name and view the password as seen below:

Cool! I am running on some of the very first home plugs, They work well for me at the minute but I should really upgrade to Gig ones at some point. Been meaning to for a while. I guess I am waiting for the right "deal" .... They work fine for my web browsing but transferring large files around not amazing but do the job.

So I just got a pair of these that someone was not using any longer, and they are the netgear AV500 model (XAV5201 - but WTF they only have a 10/100 nic -- how and the F can they get away with the 500mbps label.. I thought it was nonsense when wifi spouts out their nonsense numbers.. If you want to call them 200mbps when you have 100mbps full duplex But 500 come on give me a break.

Are you connecting at 1200 as you phy data rate reported by the client? If so 300 is bit low.. Other problem with speeds reported these days, which I can understand is the AP numbers - you have 3x3 at the AP, but then you connect with single stream client, your not going to see anywhere close to what it might do if 3x3 client.

It's working but I had to jump through some hoops. Specificallly, it won't work if I leave iperf3.exe and the dlls in the same folder, even if I add the path to this folder to the Path environment variable. I had to move the dlls to a different folder, and add it to the Path environment variable also.

thanks for the input will take a look at my links, and look into that crash..

edit: ok link updated - that was issue with editor on neowin, once I changed to see the code then yeah saw that popup was wrong. Thanks it has been corrected. Now just to take a look at the crash

edit2: So far have not been able to get this -J working, I get the same crash. I found some old patches to run compile on windows under cygwin. I applied them, and seems to still work - but still get crash if -J, what is odd is works under cygwin. Not just if you try and run with the .dll

I have updated cygwin to latest build, and moved to 64 that got rid of another dll requirement when you run cygcheck.. Need to do some more playing. Not a huge coder, I can make minor changes, and can follow a long if someone is going over something. But diving in and looking for something like this from scratch is a bit over my skill set. But since it works when run inside cygwin, the Exception: STATUS_ACCESS_VIOLATION points me to maybe something in permissions. Lots of talk of rebase when getting that error..

And just noticed post about having to move the dlls? Where exactly are you having to put them? Clearly that is not the case on multiple machines I have run the files on. Do you have the cygwin dll somewhere else in your path? Do you have cygwin installed? Will update any more info I get.. For now guess don't use -J or run it under full cygwin if you need that option on a windows box. I tried it as well on the linux builds and those are fine for -J.

Yeah been seeing the messages on the changes they were making (I get emails when they make a commit) but hadn't see actual release - will take a look see, thanks - if out should have new version up today.

Since now running 2.5 gbps to my nas ds918+ (cheap 40$ usb ethernet nic).. Did a test.. NAS only has 3.7 since the guy that makes the packages has updated as of yet Its only been out yesterday. If anyone interested in doing the same.. Just ask and post up the info... It was a nice 80$ upgrade for moving files between my pc and nas.. Vs using the smb3 multichannel, which is also great way to break the gig barrier in moving files.

If you can get the iperf guys to get it to work, then I could compile it.. I am not by any means a coder, I just compiling it - and in the past have figure out a few issues with it compiling like header issues, etc.. But something like this would be beyond my skillset.

So finally pulled the trigger on moving to dsm 7, went way smoother than I expected.. Plex was my big concern - and it was really no big deal. I have 1 docker that is not running related to plex, but that is because the plex folder moved, and docker can not see it in new location. But its not a big deal, sure the developer will fix it up for dsm 7 I hope

The one thing holding me up besides my concern for plex was driver for usb 2.5ge nic.. And that was released awhile ago so finally got around to doing it this morning. Well that broke my iperf3.10.1 I had compiled for dsm6.2 branch.. Anyhoo I got it compiled for dsm7.. If you you have a apollolake synology nas you can find it here.

Budman you magnificent thing, I've used your iperf3 builds for literally years and now you've compiled for DSM7 I can finally pull the trigger on my own update numerous thanks for your ongoing efforts!

I am currently just using my build, but if they continue to update that package, I will prob move to it when the new iperf3 comes out. But will continue to do the iperf3 for windows as new versions come out.

Anyway I went ahead and to test compile working I redid 3.10.1 64bit, newer cygwin for sure, and with cygcheck now show some dlls didn't see before being needed. So I have updated the download for 3.10.1 with version that includes these other dlls. And also did a compile of 3.11

btw for those that just want to compile yourself.. No edits at all had to be made to get this to work. Just install cygwin. Make sure you select the development packages to be installed. Copy the source code to your cygwin, change into that directory and run

If you do "iperf3.exe -v" you will see a new feature "authentication". And If you do "iperf3.exe -h" you will see additional options related to ssl/rsa. This feature enables authentication between iperf server and client. People hardly use this feature for speed tests.

IPerf is an open-source command line tool designed to test network throughput between two network hosts. The iPerf allows to generate TCP and UDP traffic (load) between two hosts. You can use iPerf to quickly measure the maximum network bandwidth (throughput) between a server and a client, and conduct stress testing of the ISP link, router, network gateway (firewall), your Ethernet, or Wi-Fi network performance. (adsbygoogle = window.adsbygoogle []).push();

The iPerf utility can run in server mode (-s option) or client mode (-c). If you are running an iPerf server on Windows, you need to open inbound port 5201 for TCP and UDP protocols. You can open ports using the Windows Defender Firewall GUI or with PowerShell commands. Create and enable firewall rules like this:

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