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This article shows you linux's way to view CPU information, the code is concise and easy to understand, it can definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Check how many CPU there are.

More / proc/cpuinfo | grep "physical id" | uniq | wc-l

How many cores is each cpu (assuming the cpu configuration is the same)

More / proc/cpuinfo | grep "physical id" | grep "0" | wc-lcat / proc/cpuinfo | grep processor

1. Check the number of physical CPU

# cat / proc/cpuinfo | grep "physical id" | sort | uniq | wc-l

two。 Check the number of logical CPU

# cat / proc/cpuinfo | grep "processor" | wc-l

3. Check how many cores CPU is.

# cat / proc/cpuinfo | grep "cores" | uniq

4. Check the main frequency of CPU

# cat / proc/cpuinfo | grep MHz | uniq# uname-aLinux euis1 2.6.9-55.ELsmp # 1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux

(view current operating system kernel information)

# cat / etc/issue | grep LinuxRed Hat Enterprise Linux AS release 4 (Nahant Update 5)

(view current operating system release information)

# cat / proc/cpuinfo | grep name | cut-f2-d: | uniq-c8 Intel (R) Xeon (R) CPU E5410 @ 2.33GHz

(see that there are 8 logical CPU and also know the CPU model)

# cat / proc/cpuinfo | grep physical | uniq-c4 physical id: 04 physical id: 1

(which means it's actually two 4-core CPU)

# getconf LONG_BIT32

(indicates that CPU is running in 32bit mode, but it does not mean that CPU does not support 64bit)

# cat / proc/cpuinfo | grep flags | grep'lm'| wc-L8

(the result is greater than 0, indicating that 64bit computing is supported. Lm refers to long mode, while supporting lm means 64bit)

The above is how linux views CPU information. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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