ISO下载文件测试

1. Linux ISO文件4.4G(HTTP也支持)
https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso

wget https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso
ls -alh CentOS-7-x86_64-DVD-2009.iso

  4.4G
  wget http://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso
  937M:
  https://mirrors.tuna.tsinghua.edu.cn/centos/7/isos/x86_64/CentOS-7-x86_64-Minimal-2009.iso
  575M:
  https://mirrors.tuna.tsinghua.edu.cn/centos/7/isos/x86_64/CentOS-7-x86_64-NetInstall-2009.iso
  204M:
  https://mirrors.tuna.tsinghua.edu.cn/kernel/v6.x/linux-6.0.1.tar.gz
  127M:
  https://mirrors.tuna.tsinghua.edu.cn/kernel/v6.x/linux-6.0.1.tar.xz

wget可以显示实际下载速率：
若wget没有显示下载速率，则下载30秒查看下载文件大小，除以30即可得到每秒速率。

2.种子：
https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.torrent