Simon Riggs wrote:
> On Fri, 2007-11-30 at 06:31 +0000, Simon Riggs wrote:
>
> > I also notice that two performance features have disappeared from the
> > release notes. (Presumably they have been removed from source). Both of
> > them have changes that can be seen by users, so can't see why we would
> > want them removed.
>
> Wow, just realised 3 of Heikki's performance patches aren't mentioned
> either:
>
> - CheckpointStartLock removal
>
> - I/O reduction during recovery
>
> - Tuning of Visibility code
>
> I'm not sure what the rationale is for not mentioning these things.
> They're at least as important, if not more so, than mentioning minor
> source code changes.
The source code changes are more _visible_, I think, meaning they often
require programmers to adjust their code.
> If people understand there aren't 13 performance improvements there are
> at *least* 19+ that is a positive message to help people decide to
> upgrade.
Frankly I think most people expact an X% improvement in every Postgres
release. I don't see how mentioning 19 vs. 13 items is going to change
the general understanding that you should upgrade to get better
performance.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
