modprobe -r brd
modprobe brd rd_nr=1 rd_size=50331648
dmsetup remove_all
wipefs -a --force /dev/ram0
mkfs -t btrfs /dev/ram0
mkdir -p /fs/ram0
mount -t btrfs /dev/ram0 /fs/ram0
mkdir /export
mount -t tmpfs nfsv4_root_export /export
mkdir -p /export//fs/ram0
mount --bind /fs/ram0 /export//fs/ram0
echo '/export//fs/ram0 *(rw,no_subtree_check,no_root_squash)' >> /etc/exports
systemctl restart rpcbind
systemctl restart rpc-statd
systemctl restart nfs-idmapd
systemctl restart nfs-server
mkdir -p /nfs/ram0
timeout 5m mount -t nfs -o vers=4 localhost:/fs/ram0 /nfs/ram0
touch /nfs/ram0/wait_for_nfs_grace_period

for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
do
	online_file="$cpu_dir"/online
	[ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue

	file="$cpu_dir"/cpufreq/scaling_governor
	[ -f "$file" ] && echo "performance" > "$file"
done

cd /lkp/benchmarks/fsmark
./fs_mark -d /nfs/ram0/1 -d /nfs/ram0/2 -d /nfs/ram0/3 -d /nfs/ram0/4 -d /nfs/ram0/5 -d /nfs/ram0/6 -d /nfs/ram0/7 -d /nfs/ram0/8 -d /nfs/ram0/9 -d /nfs/ram0/10 -d /nfs/ram0/11 -d /nfs/ram0/12 -d /nfs/ram0/13 -d /nfs/ram0/14 -d /nfs/ram0/15 -d /nfs/ram0/16 -d /nfs/ram0/17 -d /nfs/ram0/18 -d /nfs/ram0/19 -D 16 -N 256 -n 55188 -L 4 -S 0 -s 9