"mcelroy, tim" <tim(dot)mcelroy(at)bostonstock(dot)com> writes:
> I see this on all the postgres installations, no matter what I
> set the postgresql.conf settings to regarding memory allocation, once
> postgres starts up 95% of the memory on the box is used. Is there a way
> within Linux to 'see' what or who is actually using this memory?
Probably kernel disk cache. Are you under the misimpression that unused
memory is a good thing? If a Unix-ish system *isn't* showing near zero
free memory under load, the kernel is wasting valuable resources.
regards, tom lane