Re: shared_buffers on Big RAM systems - Mailing list pgsql-general

From Thomas Munro
Subject Re: shared_buffers on Big RAM systems
Date
Msg-id CAEepm=1x+b1ac0Y1Ft7MbMW+0JQnX7RKWEo8eRJsfDbWvLwG0A@mail.gmail.com
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In response to shared_buffers on Big RAM systems  (Ron <ronljohnsonjr@gmail.com>)
Responses Re: shared_buffers on Big RAM systems  (Jeff Janes <jeff.janes@gmail.com>)
List pgsql-general
On Fri, Dec 14, 2018 at 2:17 AM Ron <ronljohnsonjr@gmail.com> wrote:
> https://www.postgresql.org/docs/9.6/runtime-config-resource.html
>
> The docs say, "If you have a dedicated database server with 1GB or more of
> RAM, a reasonable starting value for shared_buffers is 25%".
>
> But that's pretty archaic in 2018.  What if the dedicated database server
> has 128GB RAM?

I agree, we might as well drop the words "with 1GB of more of RAM".
That's the size of the very smallest cloud instances available these
days, available for free or up to a few bucks a month, and for
physical servers I wonder if you can still get DIMMs that small.

-- 
Thomas Munro
http://www.enterprisedb.com


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