Re: shared_buffers formula

Hi,


On 2015-03-04 14:05:09 +0400, Alexander Shutyaev wrote:
> Thanks for the answer. Now, given this info I've calculated that our
> postgresql should occupy approx. 30,53 GB while the server has 125 GB of
> RAM. However we often see in top that there is very little free memory and
> even swap is used. What could be the reason of postgres using so much
> memory?

Presumably it's used by the OS to cache IO? Are you investigating an
actual problem with memory consumption or just wondering?

Greetings,

Andres Freund

--
 Andres Freund                       http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services