[to11mtm]

I feel like you can try to FAFO with that on a distributed log like Kafka (although also... eww, but also I wonder whether NATS does the same thing or not...)

I would think for something like a database, at most you'd want to have something like the io_uring_prep_fsync others mentioned with flags set to just not update the metadata.

To be clear, in my head I'm envisioning this case to be a WAL type scenario; in my head you can get away with just having a separate thread or threads pulling from WAL and writing to main DB files... but also I've never written a real database so maybe those thoughts are off base.