centos-kernel-416's Introduction

CentOS-Kernel-415

(fork from https://github.com/liberal-boy/tcp_tsunami)
CentOS kernel mainline v4.15 backup
Use this repo for new version of BBR (tsunami)

tcp_tsunami

tcp_tsunami adjust for kernel 4.13+（魔改版bbr，解决内核4.13+编译问题）

How to use

Update your kernel to 4.15 and make the default boot order (KVM CentOS7)

Remove previous headers

  yum update
  reboot
  rpm -e --nodeps kernel-ml-headers

Install kernel 4.15

  yum install git -y
  git clone -b master https://www.github.com/stardock/CentOS-Kernel-415
  cd CentOS-Kernel-415
  rpm -ivh kernel-ml-4.15.4-1.el7.elrepo.x86_64.rpm
  rpm -ivh kernel-ml-devel-4.15.4-1.el7.elrepo.x86_64.rpm
  rpm -ivh kernel-ml-headers-4.15.4-1.el7.elrepo.x86_64.rpm

Check the boot order and make default boot

awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg
grub2-set-default 0

Install tsunami

yum install -y make gcc wget 安装make gcc
yum install -y elfutils-libelf-devel Centos7中需要安装elfutils-libelf-devel / libelf-dev / libelf-devel

Option 1 编译安装

wget https://raw.githubusercontent.com/liberal-boy/tcp_tsunami/master/tcp_tsunami.c
echo "obj-m:=tcp_tsunami.o" > Makefile
make -C /lib/modules/$(uname -r)/build M=`pwd` modules CC=/usr/bin/gcc
insmod tcp_tsunami.ko

Option 2 直接下载编译好的文件

wget https://raw.githubusercontent.com/stardock/CentOS-Kernel-415/master/tcp_tsunami.ko
insmod tcp_tsunami.ko

执行剩下操作

cp -rf ./tcp_tsunami.ko /lib/modules/$(uname -r)/kernel/net/ipv4
depmod -a
modprobe tcp_tsunami
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=tsunami" >> /etc/sysctl.conf
echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
sysctl -p