README_en.md

Network Performance Testing Scripts

中文版

This repo contains shell scripts for testing network performance using iperf3 and ping to measure bandwidth and latency.

Contents

• run_iperf3_all.sh: Executes iperf3 on all hosts listed in hosts file.
• run_ping_all.sh: Executes ping on all hosts listed in hosts file.
• iperf3_test.sh: Performs bandwidth tests on a single host.
• ping_test.sh: Measures latency for a single host.
• hosts: Text file with hosts to test.
• ./logs: Directory for test logs.

Usage

Ensure Bash, iperf3, and ping are installed on your system.

1. Place scripts in a directory and set up a hosts file:

   1.1.1.1 example.host
   

2. Run the scripts:

   bash run_iperf3_all.sh
   bash run_ping_all.sh
   

Details

• run_iperf3_all.sh and run_ping_all.sh read hosts, ignoring comments and blanks, and run corresponding tests.
• iperf3_test.sh runs bandwidth tests 3 times with up to 40 parallel connections on port 80, logging results in ./logs/iperf3.
• ping_test.sh tests latency with 3 repetitions for 10, 50, and 100 pings, logging in ./logs/ping.

Install iperf3

Install iperf3 via package manager:

• Debian/Ubuntu:

  sudo apt-get update && sudo apt-get install iperf3
  

• CentOS/RedHat:

  sudo yum install iperf3
  

Notes

• Open necessary ports in firewall (default iperf3 port is 80).
• hosts.txt should be in the same directory as scripts with the list of hosts to test.