Re: limiting hint bit I/O

Kevin Grittner <kevin.grittner@wicourts.gov>

From: "Kevin Grittner" <Kevin.Grittner@wicourts.gov>
To: "Robert Haas" <robertmhaas@gmail.com>, "Tom Lane" <tgl@sss.pgh.pa.us>
Cc: <pgsql-hackers@postgresql.org>
Date: 2011-01-14T18:02:00Z
Lists: pgsql-hackers
Robert Haas <robertmhaas@gmail.com> wrote:
 
> this seems to be speeding up the first run by 6x at the expense of
> slowing down many subsequent runs by 10-15%.
 
If the overall throughput when measured far enough out to have hit a
steady state again is anywhere in the neighborhood of the unpatched
throughput, the leveling of the response times has enough value to
merit the change.  At least in my world.
 
-Kevin