free-m.sh释放缓存脚本
#******************************
#******************************
#set -v
echo "查看当前内存状态"
free
echo "同步当前系统I/O"
sync
echo "查看当前内存释放的默认值"
cat /proc/sys/vm/drop_caches
echo "更改释放默认值"
sudo echo 3 > /proc/sys/vm/drop_caches
echo "查看更改后内存释放的默认值"
cat /proc/sys/vm/drop_caches
echo "重新查看内存状态"
free -m
echo "还原系统释放的默认值"
echo 0 > /proc/sys/vm/drop_caches
echo "查看更改后的默认值"
cat /proc/sys/vm/drop_caches