Re: Some help on buffers and other performance tricks

Ron Peacetree wrote:
> 0= Optimize your schema to be a tight as possible.  Your goal is to give yourself the maximum chance that everything
youwant to work on is in RAM when you need it. 
> 1= Upgrade your RAM to as much as you can possibly strain to afford.  4GB at least.  It's that important.
> 2= If the _entire_ DB does not fit in RAM after upgrading your RAM, the next step is making sure your HD IO subsystem
isadequate to your needs. 
> 3= Read the various pg tuning docs that are available and Do The Right Thing.
> 4= If performance is still not acceptable, then it's time to drill down into what specific actions/queries are
problems.
> If you get to here and the entire DBMS is still not close to acceptable, your fundamental assumptions have to be
re-examined.

IMHO you should really be examining your queries _before_ you do any
investment in hardware, because later those may prove unnecessary.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.