linux command

查看服务器公网ip

curl cip.cc

禁用用透明大页面压缩

sudo echo never > /sys/kernel/mm/transparent_hugepage/defrag
sudo echo never > /sys/kernel/mm/transparent_hugepage/enabled

查看CPU信息（型号）

cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c

查看物理CPU个数

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

查看每个物理CPU中core的个数(即核数)

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

查看逻辑CPU的个数

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