nuttcp is described as 'network performance measurement tool intended for use by network and system managers' and is an app in the Network & Admin category. There are seven alternatives to nuttcp for a variety of platforms, including Windows, Linux, Mac, FreeBSD and BSD. The best alternative is iPerf3, which is both free and Open Source. Other great apps like nuttcp are SmokePing (Free, Open Source), goben (Free, Open Source), netperf (Free, Open Source) and Flent (Free, Open Source).
The iperf series of tools perform active measurements to determine the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, protocols, and buffers. For each test it reports the measured throughput, loss, and other parameters.
goben is a golang tool to measure TCP/UDP transport layer throughput between hosts. goben is intended to fix shortcomings of other network performance tools: 1) Take advantage of multiple CPUs while not wasting processing power.
Flent is a network benchmarking tool which allows you to: • Easily run network tests composing multiple well-known benchmarking tools into aggregate, repeatable test runs. • Explore your test data through the interactive GUI and extensive plotting capabilities.