Re: 8.4 open item: copy performance regression?

On Mon, 22 Jun 2009, Kevin Grittner wrote:

> When I tried with setting the ring size to 16MB, I accidentally left off 
> the step to copy the postgresql.conf file, and got better performance.

Do you have happen to have a build with assertions turned on?  That is one 
common cause of performance going down via increased shared_buffers that 
people tend to run into during beta.

You can check via psql with
  show debug_assertions;

--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD