Maybe in the Great Glorious Future (how many of those do we have?!) it would
be a good idea to take this kinds of things into account. Just because we can
map a THP, doesn't mean we should.
Shower thought: it might be in these cases especially where the FreeBSD
reservation system comes in handy - best effort allocating a THP, but not
actually mapping it as such until you really _know_ it is hot - and until
then, memory reclaim can just break your THP down if it really needs to.
This is just silly. All downsides without benefit until maybe later. And
for short-lived processes the "later" never comes.
Right, that's why I've also been arguing against that (we discussed it
recently in the THP cabal).
--
Cheers
David / dhildenb
