iperf3 ☆
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Description:
Update of iperf: measures TCP, UDP, and SCTP bandwidth
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: networking benchmark performance diagnostics tcp bandwidth
Install: brew install iperf3
About:
Iperf3 is a modern, high-performance network testing tool for measuring maximum TCP, UDP, and SCTP bandwidth. It provides detailed latency statistics like jitter and packet loss, and supports testing with both IPv4 and IPv6. Its client-server architecture allows for precise diagnostics of network link capacity and performance bottlenecks.
Key Features:
  • Measures TCP, UDP, and SCTP bandwidth performance
  • Reports latency, jitter, and packet loss statistics
  • Supports IPv4 and IPv6 testing
  • Secure authentication and encryption options
  • Real-time, client-server reporting
Use Cases:
  • Diagnosing network speed bottlenecks and link capacity
  • Verifying Quality of Service (QoS) for VoIP or video streaming
  • Testing firewall and router performance
  • Capacity planning for network infrastructure
Alternatives:
  • netperf – Older benchmarking suite; iperf3 is generally simpler and more focused on raw throughput.
  • nuttcp – Similar performance tool with additional features for specific network research tasks.
Version History
Detected Version Rev Change Commit
Sep 12, 2025 3:39pm 0 VERSION_BUMP 7eb7fb5a
Dec 27, 2024 4:23pm 0 VERSION_BUMP b6812b09
Dec 13, 2024 10:12pm 0 VERSION_BUMP 4d0c0f72
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