linux:bbr
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linux:bbr [2018/01/08 12:33] – percy | linux:bbr [2018/01/08 14:40] (current) – [BBR] percy | ||
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====== BBR ====== | ====== BBR ====== | ||
- | BBR is the optimization for the tcp, and it can increase the network speed significant. So it's the same as kcptun. | + | BBR is the optimization for the tcp, and it can increase the network speed significant. So it's the same as [[linux:kcptun|kcptun]]. |
===== BBR on Raspberry Pi ===== | ===== BBR on Raspberry Pi ===== | ||
Line 10: | Line 10: | ||
==== Enable bbr ==== | ==== Enable bbr ==== | ||
+ | sysctl net.core.default_qdisc=fq | ||
+ | sysctl net.ipv4.tcp_congestion_control=bbr | ||
+ | |||
<code BASH> | <code BASH> | ||
pi@raspberrypi: | pi@raspberrypi: | ||
Line 20: | Line 23: | ||
net.ipv4.tcp_congestion_control = bbr | net.ipv4.tcp_congestion_control = bbr | ||
</ | </ | ||
+ | |||
+ | ==== DigitalOcean enable BBR ==== | ||
+ | Refer | ||
+ | - https:// | ||
+ | Install the grub loader in the console panel, first you need power off, then after install the grub loader, then power on. | ||
+ | |||
+ | Install the new kernel, you can find the kernel what you want | ||
+ | apt-cache search --names-only linux-image | ||
+ | |||
+ | sudo apt-get install linux-image-4.11.0-13-generic linux-headers-4.11.0-13-generic | ||
+ | Or | ||
+ | sudo apt-get install linux-image-4.10.0-42-generic linux-headers-4.10.0-42-generic | ||
+ | |||
+ | Actuall after install the above kernel, it doesn' | ||
+ | |||
+ | cd kernel4.9/ | ||
+ | wget http:// | ||
+ | sudo dpkg -i linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb | ||
+ | |||
+ | Update the grub | ||
+ | sudo vim / | ||
+ | Add the line: | ||
+ | GRUB_DISABLE_SUBMENU = Y | ||
+ | | ||
+ | export GRUB_CONFIG=`sudo find /boot -name " | ||
+ | sudo update-grub | ||
+ | |||
+ | Now you find all the kernel | ||
+ | grep ' | ||
+ | And you need update / | ||
+ | GRUB_DEFAULT=0 | ||
+ | Now you can reoot the VPS | ||
+ | | ||
+ | |||
+ | ==== Some tips ==== | ||
+ | < | ||
+ | uname -r | ||
+ | #查看内核版本,含有4.9.0就表示OK了 | ||
+ | #------------ | ||
+ | sysctl net.ipv4.tcp_available_congestion_control | ||
+ | #返回值一般为: | ||
+ | #net.ipv4.tcp_available_congestion_control = bbr cubic reno | ||
+ | #------------ | ||
+ | sysctl net.ipv4.tcp_congestion_control | ||
+ | #返回值一般为: | ||
+ | #net.ipv4.tcp_congestion_control = bbr | ||
+ | #------------ | ||
+ | sysctl net.core.default_qdisc | ||
+ | #返回值一般为: | ||
+ | #net.core.default_qdisc = fq | ||
+ | #------------ | ||
+ | lsmod | grep bbr | ||
+ | #返回值有tcp_bbr模块即说明bbr已启动。 | ||
+ | </ | ||
+ | |||
+ | ==== Refer ==== | ||
+ | - https:// | ||
+ | - https:// | ||
+ | - https:// | ||
+ | |||
+ | |||
/var/www/dokuwiki/wiki/data/attic/linux/bbr.1515385999.txt.gz · Last modified: 2018/01/08 12:33 by percy