Re: Vacuum questions...

On Sat, Sep 24, 2005 at 07:17:38PM -0500, Jim C. Nasby wrote:

> Finally, if vacuum_delay is enabled, does vacuum_cost_page_miss consider
> a miss as not in the database buffer, or not in the kernel buffer?

The database buffer.

> I
> remember discussions about trying to track IO request times to try and
> determine if something came out of kernel buffers or not, but AFAIK
> that's all vaporware right now...

I don't remember the discussion, but it certainly hasn't been
implemented.

-- 
Alvaro Herrera                                http://www.PlanetPostgreSQL.org
"Escucha y olvidarás; ve y recordarás; haz y entenderás" (Confucio)