https://blog.ganfan.de/posts/ Recent content in Posts on Johnny's Space https://blog.ganfan.de/favicon.ico https://blog.ganfan.de/favicon.ico Hugo -- 0.147.7 en Sat, 17 May 2025 03:25:14 +0800 https://blog.ganfan.de/posts/compile-bbrv3/ Sat, 17 May 2025 03:25:14 +0800 https://blog.ganfan.de/posts/compile-bbrv3/ <ul> <li>安装编译依赖, 我使用的是Debian 12, 不同系统可能存在差异 <ul> <li><code>apt -y install build-essential libncurses-dev libssl-dev libelf-dev bison bc flex rsync debhelper dwarves git</code></li> </ul> </li> <li>克隆希望编译的linux kernel版本与google bbr-v3仓库 <ul> <li><code>git clone https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git 6.12.y -b linux-6.12.y</code></li> <li><code>git clone https://github.com/google/bbr.git bbr -b v3</code></li> </ul> </li> <li>提取bbr v3补丁 <ul> <li><code>cd bbr &amp;&amp; git log</code></li> <li>找到bbr v3仓库使用的内核版本对应的commit hash(发文章时为6.13.7) <ul> <li><img alt="1.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/1.png"></li> <li>提取补丁 <ul> <li><code>git format-patch --stdout hash..HEAD &gt; ../bbr3.patch</code></li> <li><img alt="2.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/2.png"></li> </ul> </li> </ul> </li> <li>在目标编译内核目录应用补丁 <ul> <li>创建新分支 <ul> <li><code>cd ../6.12.y &amp;&amp; git branch patched &amp;&amp; git checkout patched</code></li> <li><img alt="3.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/3.png"></li> </ul> </li> <li>应用补丁, warning信息无视即可 <ul> <li><code>git am ../bbr3.patch</code></li> <li><img alt="4.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/4.png"></li> </ul> </li> </ul> </li> <li>复制当前内核配置文件并应用 <ul> <li><code>cp /boot/config-$(uname -r) .config &amp;&amp; make olddefconfig</code></li> </ul> </li> <li>启用BBR v3 <ul> <li><code>make menuconfig</code></li> <li>找到 <code>Networking support ---&gt;</code> -&gt; <code>Networking options ---&gt;</code> -&gt; <code>TCP: advanced congestion control ---&gt;</code></li> <li>启用BBR, 如需保留BBR v1则追加启用BBR1, [*]代表编译进内核, [m]为编译为模块</li> <li><img alt="5.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/5.png"></li> </ul> </li> <li>编译为deb包 <ul> <li><code>make deb-pkg KCFLAGS=&quot;-march=x86-64-v2 -pipe&quot; -j$(nproc)</code></li> </ul> </li> <li>使用 <code>dpkg -i</code> 安装内核, 卸载其他所有内核或修改grub配置指定以新内核启动, 配置完成后重启 <ul> <li>由于系统五花八门, 请自行搜索相关教程</li> </ul> </li> <li>验证是否成功启用BBR v3 <ul> <li><code>modinfo tcp_bbr</code></li> <li><img alt="Termius_4XnUFkLmkb.png" loading="lazy" src="https://pic.fogs.cc/images/2025/05/17/Termius_4XnUFkLmkb.png"></li> </ul> </li> <li>启用BBR <ul> <li>临时启用 <ul> <li><code>sysctl net.ipv4.tcp_congestion_control=bbr</code> 设为bbr即启用BBR v3, 设为bbr1即启用BBR v1</li> </ul> </li> <li>持久启用 <ul> <li><code>echo 'net.ipv4.tcp_congestion_control = bbr' &gt; /etc/sysctl.conf</code></li> <li>请检查 <code>/etc/sysctl.d</code> 文件夹, 如有配置冲突请自行解决</li> </ul> </li> </ul> </li> </ul> </li> </ul>