https://blog.wongcw.com/2018/11/18/linux-4-20-%e5%9c%a8%e8%8b%b1%e7%89%b9%e7%88%be%e8%99%95%e7%90%86%e5%99%a8%e4%b8%8a%e6%80%a7%e8%83%bd%e4%bd%8e%e6%96%bc4-19/
Linux 4.20 在英特爾處理器上性能低於4.19