https://blog.wongcw.com/2021/05/02/amd-epyc%e8%99%95%e7%90%86%e5%99%a8%e5%8f%af%e4%bb%a5%e5%b9%ab%e5%8a%a9%e5%8f%b0%e7%a9%8d%e9%9b%bb%e6%9b%b4%e5%bf%ab%e6%8a%95%e7%94%a2%e4%b8%8b%e4%b8%80%e4%bb%a3%e8%8a%af%e7%89%87/