1.每个cpu是几核（假设cpu配置相同）
more /proc/cpuinfo |grep "physical id"|grep "0"|wc
2.1查看物理CPU的个数
cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l
3.查看逻辑CPU的个数#cat /proc/cpuinfo |grep "processor"|wc -l
