How to use Tencent’s internal unilateral congestion algorithm TCPA (reprinted)

The TCPA used internally by Tencent is developed by the Tencent TEG operating system group and is a customized TCPA based on the RHEL7.4 source code. Team introduction: Tencent TEG operating system group, established in 2010, is a professional kernel team that maintains and develops Tencent's internal Linux operating system tlinux to ensure efficient and stable operation of million-level servers and provide strong support for Tencent's business.

Advantages: After TCPA is enabled, small files can be improved by more than 40% compared to BBR, and large files can be improved by 5% to 10% compared to BBR. The advantage of TCPA is the performance improvement of small files, and the program only accelerates the website port (80/443/8080) by default, so it is more suitable for website building scenarios.

Installation requirements: The boot partition of centos7 or above should not be less than 500M (too small may cause kernel installation to fail)

Deployment process: Install necessary dependencies:

yum -y install net-tools

Replace the system kernel

[root@vultr ~]# wget http://down.08mb.com/tcp_opz/tcpa/kernel-3.10.0-693.5.2.tcpa06.tl2.x86_64.rpm [root@vultr ~]# rpm -ivh kernel-3.10.0-693.5.2.tcpa06.tl2.x86_64.rpm --force Preparing... ################################# [100%] Updating/installing... 1:kernel-3.10.0-693.5.2.tcpa06.tl2 ################################[100 %] Install kernel Set Grub default to "3.10.0-693.5.2.tcpa06.tl2" Done.

Restart the operating system

reboot

Download the main program:

wget http://down.08mb.com/tcp_opz/tcpa/tcpa_packets_180619_1151.tar.gz

Start installation:

tar xf tcpa_packets_180619_1151.tar.gz cd tcpa_packets sh install.sh

TCPA (default only accelerates the three ports 80, 443, and 8080), if you need to add a new acceleration port:

vim /usr/local/storage/tcpav2/start.sh

Add after line 46:

$BINDIR/$CTLAPP access add tip $ip tport custom port

Start tcpa congestion algorithm:

cd /usr/local/storage/tcpav2 sh start.sh

Check whether the activation is successful

[root@vultr tcpav2]# lsmod|grep tcpa tcpa_engine 224249 0

Uninstall method:

cd /usr/local/storage/tcpav2 sh uninstall.sh

If you want to be lazy, you can use the blogger's one-click installation script:

wget http://down.08mb.com/tcp_opz/tcpa/tcpa.sh shtcpa.sh

Instructions for use: One-click package will automatically install dependencies (only epel-release, net-tools) and kernel and restart. After restarting, the installation will be completed automatically without manual intervention.

Borui authoritative data test results:

This article is reprinted from Li Zi’s blog: https://www.lijian.me/141.html

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