modprobe -r brd
modprobe brd rd_nr=1 rd_size=50331648
dmsetup remove_all
wipefs -a --force /dev/ram0
mkfs -t f2fs /dev/ram0
mkdir -p /fs/ram0
mount -t f2fs /dev/ram0 /fs/ram0

for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
do
	echo performance > $file
done

fs_mark -d /fs/ram0/1 -n 10240 -L 1 -S 0 -s 4194304