... and they want to remove file memory buffering (for instance with DAX in the linux kernel)??? The future would more likely steer towards "mmap MAP_POPULATE"

... and they want to remove file memory buffering (for instance with DAX in the linux kernel)??? The future would more likely steer towards "mmap MAP_POPULATE" than "DAX" with such massive amount of RAM. That said, if flash RAM performance gets closer to DRAM one, for many usage profiles, DAX could be more interesting.