"Marc G. Fournier" <scrappy(at)postgresql(dot)org> writes:
> A privileged user can prevent or allow swapping of a shared memory
> segment with the following cmds:
> SHM_LOCK prevents swapping of a shared memory segment. The user
> must fault in any pages that are required to be present
> after ...
> I've done a grep through the code, to see if its something that we do use, and
> it doesn't seem to come back with anything ...
No, we don't. "privileged user" means root, so it's not possible for us
to set that.
regards, tom lane