cpuinfo

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

c00390379@u10-121-79-98:~/cm/ea5$ more /proc/cpuinfo |grep "physical id"|grep "0"|wc -l
24
c00390379@u10-121-79-98:~/cm/ea5$ cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l
2
c00390379@u10-121-79-98:~/cm/ea5$ cat /proc/cpuinfo |grep "processor"|wc -l
48
c00390379@u10-121-79-98:~/cm/ea5$ cat /proc/cpuinfo |grep "cores"|uniq
cpu cores : 12
c00390379@u10-121-79-98:~/cm/ea5$ cat /proc/cpuinfo |grep MHz|uniq
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2600.000
cpu MHz : 2599.695
cpu MHz : 2600.000
cpu MHz : 2599.796
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2600.203
cpu MHz : 2599.796
cpu MHz : 2600.000
cpu MHz : 2599.593
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2599.695
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2600.101
cpu MHz : 2599.898
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2599.492
cpu MHz : 2599.898
cpu MHz : 2600.000
cpu MHz : 2600.101
cpu MHz : 2599.492
cpu MHz : 2599.898
cpu MHz : 2600.507
cpu MHz : 2600.406
cpu MHz : 2600.000
cpu MHz : 2599.695
cpu MHz : 2600.101
cpu MHz : 2600.000
cpu MHz : 2600.203
cpu MHz : 2600.406
cpu MHz : 2599.898
cpu MHz : 2600.000
cpu MHz : 2599.898
cpu MHz : 2599.695