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I'm still waiting for an overlayfs that does read caching on the overlay without the need to format the backing storage.
by M95D 1y ago
I'm still waiting for an overlayfs that does read caching on the overlay without the need to format the backing storage.
- rekoil 1y agoSounds like what bcache does? https://bcache.evilpiepirate.org/ https://bcache.evilpiepirate.org/ This is what bcachefs is based on.
- M95D 1y agoFrom 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.
- duffyjp 1y agoVery 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.