Linux _ view the number of CPUs, cores, threads, and linux OF THE SYSTEM
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Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/43935535
(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)
Original Works are from the blog of "Deep Blue blog". You are welcome to reprint them. Please note the following source when reprinting them. Otherwise, you will be held legally liable for copyright.
Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/43935535