Comment by theblazehen

I've implemented the same idea with OpenCL: https://github.com/theblazehen/vramblk

There is originally https://github.com/Overv/vramfs however that has the overhead of a FUSE filesystem + loop device when using as a swap device.

The performance is rather lackluster however, it's far from a miracle "now you effectively have more ram for a 90% performance drop" - it definitely feels like traditional swapping