linux（centos）测试带宽

1.安装speedtest-cli

speedtest-cli是一个用Python编写的轻量级Linux命令行工具，在Python2.4至3.4版本下均可运行。它基于Speedtest.net的基础架构来测量网络的上/下行速率。安装speedtest-cli很简单——只需要下载其Python脚本文件。

 2.下载并授权

# wget https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py

# chmod +rx speedtest.py

# sudo mv speedtest.py /usr/local/bin/speedtest-cli

# sudo chown root:root /usr/local/bin/speedtest-cli

使用speedtest-cli测试网速

使用speedtest-cli命令也很简单，它不需要任何参数即可工作。

# speedtest-cli

输入这个命令后，它会自动发现离你最近的Speedtest.net服务器（地理距离），然后打印出测试的网络上/下行速率。

speedtest-cli --bytes以字节计算的方式来测试上下行速度
speedtest-cli --share将速度测试的结果生成一张图片的连接，便于你分享
speedtest-cli --simple只显示ping和上下行速度
speedtest-cli --list 列出speedtest.net所有的服务器距离你的物理距离，单位是千米（km）

3.执行

4.在浏览器请求http连接，如下所示

查看帮助信息：

speedtest-cli -h

usage: speedtest-cli [-h] [--no-download] [--no-upload] [--bytes] [--share]
                     [--simple] [--csv] [--csv-delimiter CSV_DELIMITER]
                     [--csv-header] [--json] [--list] [--server SERVER]
                     [--exclude EXCLUDE] [--mini MINI] [--source SOURCE]
                     [--timeout TIMEOUT] [--secure] [--no-pre-allocate]
                     [--version]

Command line interface for testing internet bandwidth using speedtest.net.
--------------------------------------------------------------------------
https://github.com/sivel/speedtest-cli

optional arguments:
  -h, --help            show this help message and exit
  --no-download         Do not perform download test
  --no-upload           Do not perform upload test
  --bytes               Display values in bytes instead of bits. Does not
                        affect the image generated by --share, nor output from
                        --json or --csv
  --share               Generate and provide a URL to the speedtest.net share
                        results image, not displayed with --csv
  --simple              Suppress verbose output, only show basic information
  --csv                 Suppress verbose output, only show basic information
                        in CSV format. Speeds listed in bit/s and not affected
                        by --bytes
  --csv-delimiter CSV_DELIMITER
                        Single character delimiter to use in CSV output.
                        Default ","
  --csv-header          Print CSV headers
  --json                Suppress verbose output, only show basic information
                        in JSON format. Speeds listed in bit/s and not
                        affected by --bytes
  --list                Display a list of speedtest.net servers sorted by
                        distance
  --server SERVER       Specify a server ID to test against. Can be supplied
                        multiple times
  --exclude EXCLUDE     Exclude a server from selection. Can be supplied
                        multiple times
  --mini MINI           URL of the Speedtest Mini server
  --source SOURCE       Source IP address to bind to
  --timeout TIMEOUT     HTTP timeout in seconds. Default
  --secure              Use HTTPS instead of HTTP when communicating with
                        speedtest.net operated servers
  --no-pre-allocate     Do not pre allocate upload data. Pre allocation is
                        enabled by default to improve upload performance. To
                        support systems with insufficient memory, use this
                        option to avoid a MemoryError
  --version             Show the version number and exit