Unionfs-fuse is a user-friendly software that intends to develop and deploy a unionfs implementation in the user space.
One of the most significant benefits of "unionfs fuse" is that you can mount the roots later than the standard module and their contents will appear seamlessly. Additionally, you get caching which speeds things up a lot for free and you can also enable nice stats (optional) to see how things are performing.
While there are many benefits to choosing unionfs-fuse, it's worth noting that compared to kernel-space solution, it requires lots of useless context switches, making the kernel-only solution the clear speed-winner.
When using unionfs-fuse, there are two available parameters: --roots=/root1,/root2 and --stats. Overall, if you're looking for a unionfs implementation that offers flexibility and caching for improved performance, then unionfs-fuse is worth considering.
Version 0.23: N/A