IT Home On April 24, Microsoft recently released a blog to promote Windows 10 、 Windows 11 Users should try not to use iPerf3 to test network performance, It is recommended to use ntttcp and ctsTraffic, two comprehensive network benchmark tools.
Note: Iperf is a network performance testing tool based on TCP/IP and UDP/IP. It can be used to test network bandwidth and network quality, and can also provide network delay jitter, data packet loss rate, and maximum transmission unit statistics information. You can judge network performance problems based on these information to locate network bottlenecks and solve network failures.
The Iperf open source utility is maintained by the Energy Science Network (ESnet) and supports Linux, Unix and Windows systems. However, Microsoft has explained in its blog three reasons for not recommending iPerf3.
Microsoft believes that there are three main points:
ESnet does not support Windows
ESnet has not officially supported it, nor does it recommend using Iperf3 in Windows 10 and Windows 11 systems, but recommends Iperf2.
Iperf3 runs in simulation on Windows 10/11 system
Iperf3 cannot call the native API of Windows 10/11 system, but uses Cygwin as the simulation layer to run on Windows system.
The download may be an old version (it has been updated at present)
Search "iPerf3 on Windows" on the network, the first website iperf.fr The latest version provided is 3.1.3 released on June 8, 2016, while the current latest version is 3.16.
This specific copy of iPerf3 comes from iperf.fr , contains a cygwin1.dll Version, which contains an error limiting the socket buffer to 1MB.
The foreign science and technology media liliputing conducted a test, and compared the throughput test results of ntttcp and iperf3 in Windows and Ubuntu systems:
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