Linux 硬件信息

http://blog.163.com/lideren_2008/blog/static/147057920117242123444/# lsb_release -a

LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: CentOS
Description: CentOS release 5.4 (Final)
Release: 5.4
Codename: Final

(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

(8个逻辑CPU, CPU型号)

# cat /proc/cpuinfo | grep physical | uniq -c

8 physical id : 0

(说明实际上是一颗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

4

(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)

# free -m
(-g)
m=>mb g=>gb