It's just a poorly titled mis-link, clicking through describes in more detail why it's not entirely a 'no brainer': http://www.sqlite.org/mmap.html http://www.

It's just a poorly titled mis-link, clicking through describes in more detail why it's not entirely a 'no brainer': http://www.sqlite.org/mmap.html http://www.sqlite.org/mmap.html tl;dr is "Improves performance in some cases with certain caveats/risks, is disabled by default"