=====TMPFS=====
The tmpfs facility allows the creation of filesystems whose
contents reside in virtual memory. Since the files on such
filesystems typically reside in RAM, file access is extremely
fast.
to run a directory or file in tmpfs you need to edit /etc/fstab
tmpfs /tmp tmpfs nodev,nosuid,noexec,nodiratime,size=5G 0 0
tmpfs /home/user/.cache tmpfs nodev,nosuid,noexec,nodiratime,size=5G 0 0