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</span><span># 切换到“省电”模式
</span><span>sudo powerprofilesctl set power-saver
</span></code></pre>
<h2 id="qi-ta-xing-neng-you-hua">其他性能优化</h2>
<pre style="background-color:#151515;color:#e8e8d3;"><code><span>Profile‑sync‑daemon
</span><span>将浏览器配置文件和缓存挂载到内存，退出时再写回磁盘：
</span><span>
</span><span>sudo pacman -S profile-sync-daemon
</span><span>systemctl --user enable --now psd.service
</span><span>
</span><span>Systemd‑oomd
</span><span>启用 systemd 自带的内存超载保护守护进程：
</span><span>
</span><span>sudo pacman -S systemd-oomd
</span><span>sudo systemctl enable --now systemd-oomd
</span><span>
</span><span>Bpftune
</span><span>加载 BPF 性能调优脚本（网络、I/O、调度等）：
</span><span>
</span><span>sudo pacman -S bpftune
</span><span>sudo systemctl enable --now bpftune
</span><span>
</span><span>Ananicy‑Cpp
</span><span>根据预设规则给游戏、多媒体和后台任务打优先级标签：
</span><span>
</span><span>sudo pacman -S ananicy-cpp
</span><span>sudo systemctl enable --now ananicy-cpp
</span></code></pre>
<h2 id="chang-yong-ming-ling">常用命令</h2>
<pre style="background-color:#151515;color:#e8e8d3;"><code><span>更新系统：sudo pacman -Syu
</span><span>
</span><span>重新安装所有软件包：sudo pacman -Qq | sudo pacman -S -
</span><span>
</span><span>Reset keyrings：
</span><span>
</span><span>sudo rm -rf /etc/pacman.d/gnupg
</span><span>sudo pacman-key --init
</span><span>sudo pacman-key --populate archlinux
</span><span>
</span><span>移除数据库锁：sudo rm -f /var/lib/pacman/db.lck
</span><span>
</span><span>清理软件包缓存：sudo pacman -Sc （或 -Scc 完全清空）
</span><span>
</span><span>删除孤立软件包：sudo pacman -Rns $(pacman -Qtdq)
</span><span>
</span><span>Install Gaming packages：sudo pacman -S steam wine lutris dxvk
</span><span>
</span><span>排序镜像：
</span><span>
</span><span>sudo pacman -S reflector
</span><span>sudo reflector --latest 10 --sort rate --save /etc/pacman.d/mirrorlist
</span><span>
</span><span>更改 DNS 服务器：编辑 /etc/systemd/resolved.conf 中的 DNS=1.1.1.1 8.8.8.8，然后 sudo systemctl restart systemd-resolved
</span></code></pre>
<h2 id="zai-arch-linuxshang-an-zhuang-docker">在Arch Linux上安装Docker</h2>
<p>一般推荐在qemu虚拟机中安装，这里仅做示例：</p>
<pre style="background-color:#151515;color:#e8e8d3;"><code><span>sudo pacman -S docker