Linux系统下查看CPU信息

1、 查看物理CPU的个数

[root@centos7 data]# cat /proc/cpuinfo |grep "physical id"|sort|uniq|wc -l
2

2、 查看CPU是几核

[root@centos7 data]# cat /proc/cpuinfo |grep "cores"|uniq
cpu cores   : 2

3、 查看逻辑CPU的个数

[root@centos7 data]# cat /proc/cpuinfo |grep "processor"|wc -l
4

4、 查看CPU的主频

[root@centos7 data]# cat /proc/cpuinfo |grep "GHz"|uniq
model name  : Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz

5、 同时查看逻辑CPU和CPU核数

[root@centos7 data]# cat /proc/cpuinfo |grep name |cut -f2 -d:|uniq -c
4  Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz

6、 使用lscpu命令，可以一次查看所有信息

[root@centos7 data]# lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    1
Core(s) per socket:    2
Socket(s):             2
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 158
Model name:            Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Stepping:              9
CPU MHz:               4200.007
BogoMIPS:              8400.01
Hypervisor vendor:     VMware
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              8192K
NUMA node0 CPU(s):     0-3
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec ibpb ibrs stibp arat spec_ctrl intel_stibp arch_capabilities