https://blog.wongcw.com/2020/09/11/%e8%8f%af%e7%82%ba%e9%b4%bb%e8%92%99os%e5%ae%98%e7%b6%b2%e6%ad%a3%e5%bc%8f%e4%b8%8a%e7%b7%9a%ef%bc%9a%e6%8f%90%e4%be%9b%e6%ba%90%e7%a2%bc%e4%b8%8b%e8%bc%89%e9%a6%96%e6%89%b9%e6%94%af%e6%8c%81128kb-128/