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.
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.
-- Simon Riggs 2ndQuadrant http://www.2ndQuadrant.com