https://www.cnblogs.com/liqiuhao/p/8082246.html
“Concurrency is about dealing with lots of things at once. Parallelism is about doing lots of things at once.”
细细体味这句话~~~
另外, cpu的几个名词
https://blog.csdn.net/xlinsist/article/details/54562571
socket
core
thread
http://blog.chinaunix.net/uid-20940095-id-3596134.html
lscpu
cat /proc/cpuinfo
https://blog.csdn.net/kongshuai19900505/article/details/51448553