Ubuntu 通过 sysctl 调整和最大化网络带宽!

我会在这里展示一些隐藏的设置，这些可以增加您的 internet 速度, 并且适合于所有的 linux 操作系统，包括 Ubuntu:

1. 打开一个终端， 应用程序 -> 附件 -> 终端

输入:

sudo vim /etc/sysctl.conf (按 i 进入编辑模式)

到文件的结尾粘贴下面的行:

## increase TCP max buffer size setable using setsockopt()net.core.rmem_max = 16777216net.core.wmem_max = 16777216 ## increase Linux autotuning TCP buffer limits ## min, default, and max number of bytes to use ## set max to at least 4MB, or higher if you use very high BDP pathsnet.ipv4.tcp_rmem = 4096 87380 16777216net.ipv4.tcp_wmem = 4096 65536 16777216 ## don't cache ssthresh from previous connectionnet.ipv4.tcp_no_metrics_save = 1net.ipv4.tcp_moderate_rcvbuf = 1 ## recommended to increase this for 1000 BT or highernet.core.netdev_max_backlog = 2500 ## for 10 GigE, use this, uncomment below ## net.core.netdev_max_backlog = 30000 ## Turn off timestamps if you're on a gigabit or very busy network ## Having it off is one less thing the IP stack needs to work on ## net.ipv4.tcp_timestamps = 0 ## disable tcp selective acknowledgements.net.ipv4.tcp_sack = 0 ##enable window scalingnet.ipv4.tcp_window_scaling = 1

输入 :wq ，保存和退出。

在终端输入

sudo sysctl -p

应用这些设置。

您可以屏蔽和删除你增加的行，使用:

sudo gedit /etc/sysctl.conf