Greg,
> Like some of the other GUC simplification ideas that show up sometimes
> (unifying all I/O and limiting background processes based on that total
> is another), this is hard to do internally. Josh's proposal has a fair
> amount of work involved, but the code itself doesn't need to be clever
> or too intrusive. Unifying all the memory settings would require being
> both clever and intrusive, and I doubt you'll find anybody who could
> pull it off who isn't already overtasked with more important
> improvements for the 8.4 timeframe.
Plus, I'm a big fan of "enable an API" rather than "write a feature". I
think that there are people & companies out there who can write better
autotuning tools than I can, and I'd rather give them a place to plug
those tools in than trying to write autotuning into the postmaster.
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco
