所有linux系统详细设置参考：

https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/

vi /etc/init.d/disable-transparent-hugepages

#!/bin/sh

### BEGIN INIT INFO

# Provides:          disable-transparent-hugepages

# Required-Start:    $local_fs

# Required-Stop:

# X-Start-Before:    mongod mongodb-mms-automation-agent

# Default-Start:     2 3 4 5

# Default-Stop:      0 1 6

# Short-Description: Disable Linux transparent huge pages

# Description:       Disable Linux transparent huge pages, to improve

#                    database performance.

### END INIT INFO

case $1 in

  start)

    if [ -d /sys/kernel/mm/transparent_hugepage ]; then

      thp_path=/sys/kernel/mm/transparent_hugepage

    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then

      thp_path=/sys/kernel/mm/redhat_transparent_hugepage

    else

      return 0

    fi

    echo 'never' > ${thp_path}/enabled

    echo 'never' > ${thp_path}/defrag

    unset thp_path

    ;;

esac

chmod 755 /etc/init.d/disable-transparent-hugepages

update-rc.d disable-transparent-hugepages defaults