#!/bin/sh
#@auth:weihf@asiainfo.com
#@time:2017-07-18
#@desc:清理内存

cd ../lib/common
. ./common_check.sh

check_root
if [ $? != 0 ];then
    echo "permission denied.you should login as super administrator."
    exit 1
fi

#同步数据到磁盘
sync

#释放不活动内存
echo 1 >/proc/sys/vm/drop_caches

#恢复系统自动释放缓存
echo 0 >/proc/sys/vm/drop_caches