https://blog.gongquiz.com/2022/09/21/16%ea%b0%9c%ec%9d%98-cpu%eb%a1%9c-%ea%b5%ac%ec%84%b1%eb%90%9c-%ed%95%98%ec%9d%b4%ed%8d%bc%ed%81%90%eb%b8%8c%ec%97%90%ec%84%9c-%ea%b0%81-cpu%eb%8a%94-%eb%aa%87-%ea%b0%9c%ec%9d%98-%ec%97%b0%ea%b2%b0/