A Hop, A Skip, and A Jump - part the third

Some more spelunking. Turns out that linux and Windows have existing mechanisms to leverage persistent memory under the covers of block-mode IO; i.e. mmap and DAX. Such might be sufficient to get by in the short term. Here's Intel's report.

Both Windows* and Linux* support memory-mapped files, a feature which has been around for a long time, but is not commonly used.

Interestingly, the BDFL of Progress database said, around 1990, that if your database didn't use mmap, get another database. That long ago.

Intel also has a FAQ, which has some interesting tidbits.