View CPU information on Linux

I. Description of the Order

CPU-related information is viewed from the/proc/cpuinfo file, and the following commands are viewed:

View the number of physical CPUs Cat/proc/cpuinfo | grep "Physical ID" | Uniq | Wc-l View CPU Cores Cat/proc/cpuinfo | grep "CPU Cores" |uniq see the number of processors in the CPU Cat/proc/cpuinfo | grep "Processor" | Wc-l

Second, examples

1. The following command executes the machine's CPU configuration:

2 physical CPUs, 4 cores 650) this.width=650; "Src=" http://s3.51cto.com/wyfs02/M02/73/1F/wKioL1X2NV_g3_ Ltaaglintixzy162.jpg "title=" virtual machine configuration. jpg "alt=" wkiol1x2nv_g3_ltaaglintixzy162.jpg "/>

2. View the number of physical CPUs 650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/73/22/wKiom1X2M9bxu-gJAAR87GANx6Q445.gif "titl E= "Cpu-physical-num.gif" alt= "Wkiom1x2m9bxu-gjaar87ganx6q445.gif"/>

3. View the number of cores on each CPU

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4. View the number of logical CPUs

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Iii. Summary

The following is a Dell server configuration that uses Intel's E5520 CPU

Physical CPU Number = Number of processor slots = 2

Number of cores per CPU = number of cores per slot = 4

Processor total number of cores =2*4=8

The Hyper-Threading is active in the figure, and the CPU uses Hyper-Threading technology, so there are two logical processors in one core.

Number of logical processors = Total cores

The machine executing the command instance above does not have hyper-threading technology, so the number of cores and logical processing is equal, and Dell is twice times the relationship.

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This article is from "Linux Novice learning" blog, please be sure to keep this source http://xzb2015.blog.51cto.com/8796643/1694503

View CPU information on Linux