"Scott Carey" <scott(at)richrelevance(dot)com> writes:
> I have determined that nearly every cached page within shared_buffers is
> being pinned in memory, preventing the OS from dropping any such pages from
> its page cache.
Shouldn't you be complaining to kernel folk rather than here?
What do you think we could do about it?
(I'm not convinced that you're seeing anything except a
platform-specific vagary in how "top" counts things, anyway.)
regards, tom lane