查看服务器cpu 核心数

cpu相关信息所在文件是 /proc/cpuinfo

物理cpu数  

# grep "physical id" /proc/cpuinfo | sort | uniq | wc -l

cpu 核数

# grep 'cpu cores' /proc/cpuinfo | uniq | awk -F':' '{print $2}'

逻辑cpu数 

# grep 'processor' /proc/cpuinfo | sort | wc -l