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`tmpfs` is a file system server for temporary data storage without using a real
(permanent) [[backing_store]].

It is based on [[libdiskfs]].

Even though there are other possibilities of creating a
[[libstore/examples/ramdisk]] and running a regular, for example, [[`ext2` file
system|ext2fs]] on it, having a real `tmpfs` is better, as it need not deal
with the additional block-level indirection layer that `ext2` (or any other
disk-based file system) imposes.

However, `tmpfs` is not working correctly at the moment: