1. 查看物理CPU的个数
#cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l 1
2. 查看逻辑CPU的个数
#cat /proc/cpuinfo |grep "processor"|wc -l 8
3. 查看CPU是几核
#cat /proc/cpuinfo |grep "cores"|uniq cpu cores : 4
4. 查看CPU的主频
#cat /proc/cpuinfo |grep MHz|uniq cpu MHz : 1600.000
其他信息
# uname -a Linux 54acm 2.6.32-25-generic-pae #44-Ubuntu SMP Fri Sep 17 21:57:48 UTC 2010 i686 GNU/Linux (查看当前操作系统内核信息) # cat /etc/issue Ubuntu 10.04 LTS (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 E5620 @ 2.40GHz (看到有8个逻辑CPU, 也知道了CPU型号) # cat /proc/cpuinfo | grep physical | uniq -c 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual 1 physical id : 1 1 address sizes : 40 bits physical, 48 bits virtual (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)
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" siblings : 8 1.查看CPU信息命令 cat /proc/cpuinfo 2.查看内存信息命令 cat /proc/meminfo 3.查看硬盘信息命令 fdisk -l