linux网络带宽，网速检测
linux文件下载地址，下载3.1.3https://iperf.fr/iperf-download.phphttps://downloads.es.net/pub/iperf/修改编译配置：https://blog.csdn.net/u012153439/article/details/79699414./configure --host=arm --prefix=$(pwd)/…/out/ --host=arm-hisiv300-linux CFLAGS=-static --enable
