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几个cpumore /proc/cpuinfo |grep "physical id"|uniq|wc -l每个cpu是几核（假设cpu配置相同）more /proc/cpuinfo |grep "physical id"|grep "0"|wc -lcat /proc/cpuinfo | grep processor1. 查看物理CPU的个数#cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l2. 查看逻辑CPU的个数#cat /proc/cpuinfo |grep "processor"|wc -l3. 查看CPU是几核#cat /proc/cpuinfo |grep "cores"|uniq4. 查看CPU的主频#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(查看当前操作系统内核信息)# cat /etc/issue | grep LinuxRed 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 -c8 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 -c4 physical id : 04 physical id : 1(说明实际上是两颗4核的CPU)# getconf LONG_BIT32(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 -l8(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)如何获得CPU的详细信息：linux命令：cat /proc/cpuinfo用命令判断几个物理CPU，几个核等：逻辑CPU个数：# cat /proc/cpuinfo | grep "processor" | wc -l物理CPU个数：# cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l每个物理CPU中Core的个数：# cat /proc/cpuinfo | grep "cpu cores" | wc -l是否为超线程？如果有两个逻辑CPU具有相同的”core id”，那么超线程是打开的。每个物理CPU中逻辑CPU(可能是core, threads或both)的个数：# cat /proc/cpuinfo | grep "siblings"
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