I'm still waiting for an overlayfs that does read caching on the overlay without the need to format the backing storage.

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rekoil 2 days ago | parent | next [-]

Sounds like what bcache does? https://bcache.evilpiepirate.org/

This is what bcachefs is based on.

	▲	M95D 2 days ago \| parent [-]
		From kernel Documentation/bcache.txt: > You'll need make-bcache from the bcache-tools repository. Both the cache device and backing device must be formatted before use. So, it's far from overlayfs. I could accept formatting the cache device, but not the backing storage.

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duffyjp a day ago | parent | prev [-]

Very recently I setup a mergerfs mount for this. It’s very crude for my use case but works perfectly and I could use the existing volume as is.

I got partway thru setting up a script to copy recently accessed files from the HDD to the read-prioritized SSD.

My LLMs load up way faster, and I still have a source of truth volume in the huge HDD. It’s not something I’d use professionally though, way too janky.