If you want to test network speed on Mac，To ensure the performance of your network connection or to diagnose network problems，The following methods can be used：
Use the built-in Network Utilities
1. 打开“网络实用工具”
•点击桌面左上角的苹果图标，Select "System Preferences"。
•In System Preferences，Select "Network"。
•In the Network window，Click the "Advanced" button in the lower left corner，Then select the Network Utilities tab。
2.测试网速
•在“网络实用工具”窗口中，Select the "Information" tab。
•View network connection details，including signal strength、Connection speed etc.。
Use an online internet speed test tool
1. 访问网速测试网站
•打开Safari或其他浏览器。
•Visit a popular internet speed test website，For example Speedtest.net 或 Fast.com。
2.运行测试
•在网站上点击“开始测试”或类似的按钮。
•Wait until the test is complete，You will see the download speed of your network、Upload speed and latency (ping) and other information。
Use the terminal command line tool
1. 安装speedtest-cli
•打开“终端”应用（可以通过点击桌面上的放大镜图标，Type "terminal" and press Enter to find)。
•安装speedtest-cli工具，Enter the following command and press Enter：
brew install speedtest-cli
如果未安装Homebrew，You need to install Homebrew first。
2.运行测试
•在终端中，Enter the following command and press Enter：
speedtest
这将显示您的网络下载速度、Upload speed and latency information。
Through the above methods，You can easily test network speed on your Mac system，Ensure network connection stability and performance。
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