On Thu, May 20, 2021 at 04:19:50PM -0700, Peter Geoghegan wrote: > On Thu, May 20, 2021 at 2:37 PM Bruce Momjian <br...@momjian.us> wrote: > > I went with this text: > > > > Reduce the default value of <varname><xref > > linkend="guc-vacuum-cost-page-miss"></varname> from 10 milliseconds > > to 2 > > (Peter Geoghegan) > > > > I think with numbers, and the fact we are saying "decrease" havint them > > in the from/to order is best. If this was non-numeric, like to scram > > from md5, it would make more sense to use to/from. > > The point of this change was to make the cost of dirtying pages much > higher than everything else, since writes are in effect much more > expensive on modern hardware. Don't know if you need to say that.
I think our text "This new default better reflects current hardware capabilities." is detailed enough. People can dig into the item to see what it does and how it adjusts costs. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com If only the physical world exists, free will is an illusion.
