Linux如何查看CPU信息

使用lscpu命令

[root@Docker ~]# 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:    2
Core(s) per socket:    2
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 85
Model name:            Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz
Stepping:              4
CPU MHz:               2499.980
BogoMIPS:              4999.96
Hypervisor vendor:     KVM
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              1024K
L3 cache:              33792K
NUMA node0 CPU(s):     0-3

直接查看文件

[root@vultr ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 85
model name      : Virtual CPU 82d9ed4018dd
stepping        : 4
microcode       : 0x1
cpu MHz         : 2600.000
cache size      : 16384 KB
physical id     : 0
siblings        : 1
core id         : 0
cpu cores       : 1
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass
bogomips        : 5200.00
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

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查看物理CPU的个数

[root@vultr ~]# cat  /proc/cpuinfo | grep "physical id" | sort  | uniq | wc -l
1

查看逻辑CPU的个数

[root@vultr ~]# cat  /proc/cpuinfo | grep "processor" | wc -l
1

查看CPU是几核

[root@vultr ~]# cat  /proc/cpuinfo | grep "cores" | uniq
cpu cores       : 1

查看CPU主频

[root@vultr ~]# cat  /proc/cpuinfo | grep MHz | uniq
cpu MHz         : 2600.000