Linux查看cpu个数
 
1. 查看物理CPU的个数 
cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l 
 
2. 查看逻辑CPU的个数 
 
cat /proc/cpuinfo |grep "processor"|wc -l 
 
3. 查看CPU是几核 
 
cat /proc/cpuinfo |grep "cores"|uniq 
 
4. 查看CPU的主频 
 
cat /proc/cpuinfo |grep MHz|uniq