Linux BBRplus Kernel 5.4 ported from BBRplus 4.14
(note that it does NOT based on 5.4 version of BBR, instead just simple ported the 4.14 version of BBRplus)

based on original version
https://github.com/cx9208/bbrplus

net.ipv4.tcp_congestion_control = bbrplus
net.core.default_qdisc = fq

or

net.ipv4.tcp_congestion_control = bbr
net.core.default_qdisc = fq

in the /etc/sysctl.conf file.    ( fq is the only recommended packet scheduler, do not use fq_codel cake etc )

(or you can use releases compiled by me in "Releases" section)

    (e.g., convert_official_linux-5.4.x_src_to_bbrplus.patch)

    say 5.4.69        
        wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.69.tar.gz

    tar zxvf linux-5.4.69.tar.gz && cd linux-5.4.69

    something like
        cp ../convert_official_linux-5.4.x_src_to_bbrplus.patch .

    patch -p1 < convert_official_linux-5.4.x_src_to_bbrplus.patch

(if no error or failed on previous step)

CentOS
sudo yum groupinstall Development tools
sudo yum install ncurses-devel bc gcc gcc-c++ ncurses ncurses-devel cmake elfutils-libelf-devel openssl-devel rpm-build redhat-rpm-config asciidoc hmaccalc perl-ExtUtils-Embed xmlto audit-libs-devel binutils-devel elfutils-devel elfutils-libelf-devel newt-devel python-devel zlib-devel

press "y" key when asked

Debian/Ubuntu
sudo apt install build-essential libncurses5-dev
sudo apt build-dep linux

press "y" key when asked

    make oldconfig

press Enter key when asked (if dont know what is what)

    scripts/config --disable DEBUG_INFO && scripts/config --disable MODULE_SIG

CentOS
make rpm-pkg LOCALVERSION=-bbrplus 2>&1 | tee build.log

Debian/Ubuntu
make deb-pkg LOCALVERSION=-bbrplus 2>&1 | tee build.log

if anything goes wrong check the "build.log" file

(if not failed on previous step)

CentOS files
located in
/"user home dir"/rpmbuild/RPMS/x86_64/

Debian/Ubuntu files
located in
parent directory