SWAPPING v181227

$ free -h
$ top
$ vmstat -w
$ cat /proc/swaps
# fdisk -l

# swapon -s
# ls -lh /tmp 
# dd if=/dev/zero of=/tmp/swap_tmp bs=1024 count=1000000
# ls -lh /tmp
# chmod 600 /tmp/swap_tmp
# mkswap /tmp/swap_tmp
# swapon /tmp/swap_tmp
# swapon -s

# blkid
# vim /etc/fstab
> # Emergency swap partition
> UUID= (value from blkid)     none     swap     sw    0     0