


View method: 1. Execute the "cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l" command; 2. Execute the "cat /proc/cpuinfo |grep "processor"| wc -l" command.
#The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.
linux Check the cpu of the machine
1. Check the number of physical CPUs
cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l
2. Check the number of logical CPUs Number (number of threads)
cat /proc/cpuinfo |grep "processor"|wc -l
3. Check the number of cores of the CPU
cat /proc/cpuinfo |grep "cores"|uniq
4. Check the main frequency of the CPU
cat /proc/cpuinfo |grep MHz|uniq
Extended knowledge:
uname -a
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux (查看当前操作系统内核信息)
cat /etc/issue | grep Linux
Red Hat Enterprise Linux AS release 4 (Nahant Update 5) (查看当前操作系统发行版信息)
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8 Intel(R) Xeon(R) CPU E5410 @ 2.33GHz (看到有8个逻辑CPU, 也知道了CPU型号)
cat /proc/cpuinfo | grep physical | uniq -c
4 physical id : 0 4 physical id : 1 (说明实际上是两颗4核的CPU)
getconf LONG_BIT
32 (说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)
cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
8 (结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)
Related recommendations: "Linux Video Tutorial"
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