Iperf 2 is a free, open-source tool designed to measure network bandwidth and latency through socket connections, supporting both TCP and UDP protocols. Available across platforms like Linux, Windows, macOS, and Android, Iperf 2 allows effective network performance evaluation with support for multiple CPUs.
Key Features
- TCP and UDP Testing: Iperf 2 enables speed and latency testing on both TCP and UDP, providing flexibility for different network types.
- Flexible Configuration: It supports smaller reporting intervals, high-precision measurements with intervals as short as 100 microseconds, and clock synchronization, crucial for accurate analysis.
- Latency and Throughput Measurements: Detailed reports are generated on latency and throughput, showing average, minimum, maximum latency, and standard deviation for UDP connections.
- Latency Histogram: Ideal for real-time network evaluations, Iperf 2 offers configurable histograms for detailed analysis.
- Advanced Connection Options: Iperf 2 includes support for IPv4 and IPv6 addresses, multicast, Source-Specific Multicast (SSM), and features for scheduling traffic with isochronous data flows.
For a deeper technical overview, visit the Iperf 2 man page.
The new version is available, and you can download it 
here.
