Linux _ view the number of CPUs, cores, and threads of the system

Linux _ view the number of CPUs, cores, and threads of the system

(1) view cpu Information

[Root @ xckydb ~] # Cat/proc/cpuinfo

-- View cpu Information

Processor: 0

Vendor_id: GenuineIntel

Cpu family: 6

Model: 58

Model name: Intel (R) Core (TM) i5-3320M CPU @ 2.60 GHz

Stepping: 9

Cpu MHz: 2566.490

Cache size: 6144 KB

Fpu: yes

Fpu_exception: yes

Cpuid level: 5

Wp: yes

Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat limit 36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc up pni monitor ssse3 lahf_lm

Bogomips: 5132.98

Clflush size: 64

Cache_alignment: 64

Address sizes: 36 bits physical, 48 bits virtual

Power management:

 

(2) view cpu brief information

[Root @ xckydb ~] # Cat/proc/cpuinfo | grep name | cut-f2-d: | uniq-c

-- View brief cpu Information

1 Intel (R) Core (TM) i5-3320M CPU @ 2.60 GHz

 

(3) Check the number of physical CPUs

[Root @ xckydb ~] # Grep 'physical id'/proc/cpuinfo | sort-u

1

-- The number of physical CPUs is 1.

(4) Check the number of cores

[Root @ xckydb ~] # Grep 'core id'/proc/cpuinfo | sort-u | wc-l

6

-- Check that the number of CPU cores is 6

(5) view the number of threads

[Root @ xckydb ~] # Grep 'processor '/proc/cpuinfo | sort-u | wc-l

12

-- Check that the total number of cpu threads is 12 (6 cores)