Linux view number of physical CPUs, number of cores, logical CPUs

#total number of cores = number of physical CPUs X number of cores per physical CPU#Total Logical CPUs = number of physical CPUs x number of cores per physical CPU X number of hyper-threads#To view the number of physical CPUscat/proc/cpuinfo| Grep"Physical ID"| Sort| uniq| WC-L#View the number of cores in each physical CPU (that is, the number of nuclei)cat/proc/cpuinfo| Grep"CPU Cores"|Uniq#View the number of logical CPUscat/proc/cpuinfo| Grep"Processor"| WC-L#View CPU information (model number)Cat/proc/cpuinfo | grep name | Cut-f2-d: | Uniq-c

A physically encapsulated CPU (judged by physical ID) can have multiple cores (differentiated by Core ID).

Each core can have multiple logical CPUs (judged by processor).

One core implements this core's own hyper-Threading technology through multiple logical CPUs.


That is, a physical core contains multiple logical CPUs

Ext.: https://www.cnblogs.com/emanlee/p/3587571.html

Linux view number of physical CPUs, number of cores, logical CPUs