CPU基本配置查詢
名詞解釋:
名詞 | 含義 |
CPU實體個數 | 主機闆上實際插入的cpu數量 |
CPU核心數 | 單塊CPU上面能處理資料的晶片組的數量,如雙核、四核等 (cpu cores) |
邏輯CPU數/線程數 | 一般情況下,邏輯cpu=實體CPU個數×每顆核數,如果不相等的話,則表示伺服器的CPU支援超線程技術 |
檢視CPU實體個數
[root@node5 ~]# grep 'physical id' /proc/cpuinfo | sort -u | wc -l
1
檢視CPU核心數量
[root@node5 ~]# grep 'core id' /proc/cpuinfo | sort -u | wc -l
4
檢視CPU線程數
#邏輯cpu數:一般情況下,邏輯cpu=實體CPU個數×每顆核數,如果不相等的話,則表示伺服器的CPU支援超線程技術(HT:簡單來說,它可使處理#器中的1 顆核心如2 顆核心那樣在作業系統中發揮作用。這樣一來,作業系統可使用的執行資源擴大了一倍,大幅提高了系統的整體性能,此時邏#輯cpu=實體CPU個數×每顆核數x2)
[root@node5 ~]# cat /proc/cpuinfo| grep "processor"|wc -l
4
[root@node5 ~]# grep 'processor' /proc/cpuinfo | sort -u | wc -l
4
檢視CPU型号
[root@node5 ~]# cat /proc/cpuinfo | grep name | sort | uniq
model name : Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
[root@node5 ~]# dmidecode -s processor-version | uniq #使用uniq進行去重
Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
檢視CPU的詳細資訊
#CPU有幾個核,就會輸出幾個重複的資訊
[root@node5 ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 142
model name : Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
stepping : 10
microcode : 0x96
cpu MHz : 2000.921
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
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 vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch tpr_shadow vnmi ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec arat
bogomips : 4002.00
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
[root@node5 ~]# 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: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 142
Model name: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Stepping: 10
CPU MHz: 2000.921
BogoMIPS: 4002.00
Virtualization: VT-x
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 vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch tpr_shadow vnmi ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec arat