https://blog.wongcw.com/2018/10/30/macbook%e6%8f%9b%e4%b8%8a%e6%96%b0ssd%e7%a1%ac%e7%a2%9f%ef%bc%8c%e9%9c%80%e6%89%8b%e5%8b%95%e9%96%8b%e5%95%9ftrim%e6%a9%9f%e5%88%b6%ef%bc%8c%e7%b6%ad%e6%8c%81%e5%8e%9f%e6%9c%89%e7%9a%84%e8%ae%80/