iperf3 portable binaries (ljh-sh/iperf)

Vendored iperf3 @ 3.19.1 from ESnet/LBNL, packaged as portable static binaries across 5 platforms: Linux (musl × 2), macOS (× 2), Windows (× 1).

Install

# macOS / Linux (anywhere with `x`):
x eget ljh-sh/iperf --to /usr/local/bin/iperf3

# Manual:
# 1. Go to https://github.com/ljh-sh/iperf/releases
# 2. Download the asset matching your platform
# 3. Unpack; put `iperf3` on your PATH

Asset naming

File	Platform
iperf3-linux-musl-x64.tar.xz	x86_64 Linux (Alpine / glibc, statically linked)
iperf3-linux-musl-arm64.tar.xz	aarch64 Linux (Graviton / RPi 4/5)
iperf3-darwin-x64.tar.xz	x86_64 macOS
iperf3-darwin-arm64.tar.xz	Apple Silicon macOS
iperf3-windows-x64.zip	x86_64 Windows (MinGW)

Each archive contains bin/iperf3 (or bin/iperf3.exe) plus LICENSE, NOTICE.md, and this README.

Use

# Server
iperf3 -s

# Client (run on another machine)
iperf3 -c <server-ip>

# UDP, 100 Mbit/s for 10 seconds
iperf3 -c <server-ip> -u -b 100M -t 10

# JSON output for scripting
iperf3 -c <server-ip> -J | jq '.end.sum_received.bits_per_second'

Why this fork

The official iperf3 project ships source and a few pre-built binaries at https://downloads.es.net/pub/iperf/, but coverage is uneven across architectures (especially Apple Silicon and aarch64 Linux) and the binaries are not always statically linked (broken on older glibc systems or musl-based distros like Alpine).

This repo fixes that: every binary is statically linked, covers the five platforms users actually run iperf3 on, and ships from CI on every release tag.

License

• This distribution (ljh-sh/iperf): BSD-3-Clause — see LICENSE.
• iperf3 itself: BSD-3-Clause (LBNL/ESnet) — see upstream/iperf/LICENSE.

We make no modifications to the vendored iperf3 source under upstream/iperf/. See NOTICE.md for full attribution.

See also

• iperf3 documentation: https://software.es.net/iperf
• Upstream source: https://github.com/esnet/iperf
• 中文 README: README.cn.md