Linux下查看系統CPU個數、核心數、線程數

1.查看物理CPU個數

(env) root@vmware01:~# grep 'physical id' /proc/cpuinfo 
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
(env) root@vmware01:~# grep 'physical id' /proc/cpuinfo | sort -u
physical id    : 0
(env) root@vmware01:~# 

2.查看核心數量

 

(env) root@vmware01:~# grep 'core id' /proc/cpuinfo | sort -u |wc -l
4
(env) root@vmware01:~# grep 'core id' /proc/cpuinfo |wc -l
8
(env) root@vmware01:~# 

 

3.查看線程數

 

(env) root@vmware01:~# grep 'processor' /proc/cpuinfo | sort -u | wc -l
8
(env) root@vmware01:~# grep 'processor' /proc/cpuinfo |  wc -l
8
(env) root@vmware01:~# 

 

示例：

(env) root@vmware01:~# grep 'physical id' /proc/cpuinfo 
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
physical id    : 0
(env) root@vmware01:~# grep 'core id' /proc/cpuinfo |wc -l
8
(env) root@vmware01:~# grep 'processor' /proc/cpuinfo |  wc -l
8
(env) root@vmware01:~# 

上邊這台服務器可以看到有8個CPU，8個核心，每個核心8個線程，共8×8×8=512個線

 查看CPU相關信息

(env) root@vmware01:~# vim /proc/cpuinfo 
(env) root@vmware01:~#