几个cpu

more /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 -l

cat /proc/cpuinfo | grep processor

1. 查看物理CPU的个数

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

2. 查看逻辑CPU的个数

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

3. 查看CPU是几核

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

4. 查看CPU的主频

cat /proc/cpuinfo |grep MHz|uniq

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)