Andres Freund <andres@2ndquadrant.com> writes:
> Btw, RhodiumToad/Andrew Gierth on irc talked about a reason why sysv shared
> memory might be advantageous on some platforms. E.g. on freebsd there is the
> kern.ipc.shm_use_phys setting which prevents paging out shared memory and also
> seems to make tlb translation cheaper. There does not seem to exist an
> alternative for anonymous mmap.
Isn't that mlock()?
> So maybe we should make that a config option?
I'd really rather not. If we're going to go in this direction, we
should just go there.
regards, tom lane