https://blog.wongcw.com/2018/10/14/%e8%8b%b9%e6%9e%9ca12%e5%a4%84%e7%90%86%e5%99%a8%e8%a1%a5%e5%85%85%e5%88%86%e6%9e%90%ef%bc%9a%e8%b6%85%e5%87%b6%e5%b0%8f%e6%a0%b8%e5%bf%83%e6%80%a7%e8%83%bd%e7%9c%8b%e9%bd%90cortex-a73-npu%e6%80%a7/