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  • CentOS 7 开启 BBR加速

    CentOS 7 开启 BBR加速

    CentOS 7 一键安装最新内核并开启BBR
    -------------------------------------------------------------------------

    BBR一键安装脚本
    KVM架构使用
    https://teddysun.com/489.html

     

    内核检查输入命令:

    uname -r

    果然是 3.10 内核

    指令

    wget --no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh && chmod +x bbr.sh && ./bbr.sh

    会看到你的系统讯息

    ---------- System Information ----------
     OS      : CentOS 7.7.1908
     Arch    : x86_64 (64 Bit)
     Kernel  : 3.10.0-1062.18.1.el7.x86_64
    ----------------------------------------
     Auto install latest kernel for TCP BBR

     URL: https://teddysun.com/489.html
    ----------------------------------------

    Press any key to start...or Press Ctrl+C to cancel

    敲任意键

    自动安装

    Complete!

    Info: The system needs to reboot.

    Do you want to restart system? [y/n]

    安裝完成

    重开机输入 y

     

    SSH登入

    验证是否已安装并开启BBR

    uname -r

    显示结果为 5.6.8-1.el7.elrepo.x86_64 內核版本已更新到5.6

    敲入
    sysctl net.ipv4.tcp_available_congestion_control

    返回值一般為
    net.ipv4.tcp_available_congestion_control = reno cubic bbr

    敲入
    sysctl net.ipv4.tcp_congestion_control

    返回值一般為
    net.ipv4.tcp_congestion_control = bbr

    敲入
    sysctl net.core.default_qdisc

    返回值一般為
    net.core.default_qdisc = fq

    敲入
    lsmod | grep bbr

    返回值有出現 tcp_bbr

    说明BBR已启动


    POWER
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