Re: Should we update the random_page_cost default value?

Bruce Momjian <bruce@momjian.us>

From: Bruce Momjian <bruce@momjian.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Tomas Vondra <tomas@vondra.me>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-10-30T23:13:01Z
Lists: pgsql-hackers
On Thu, Oct  9, 2025 at 08:05:37AM -0400, Robert Haas wrote:
> On Wed, Oct 8, 2025 at 8:16 PM Bruce Momjian <bruce@momjian.us> wrote:
> > I rewrote the random_page_cost docs, attached, to remove a focus on
> > magnetic disk, and added network latency as a reason for
> > random_page_cost being low.  I removed the specific caching numbers and
> > went with a more generic description.
> >
> > I would normally apply this only to master, but given the complaints in
> > this thread, maybe I should backpatch it.
> 
> This seems fine to me but I won't be surprised if other people have
> some complaints. :-)

Doc patch applied to all supported releases.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.