| From: | "Jim C(dot) Nasby" <jim(at)nasby(dot)net> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Mark Lonsdale <mark(dot)lonsdale(at)wysdm(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Configuration settings for 32GB RAM server |
| Date: | 2006-12-07 06:03:20 |
| Message-ID: | 20061207060320.GV44124@nasby.net |
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| Thread: | |
| Lists: | pgsql-performance |
On Mon, Dec 04, 2006 at 09:42:57AM -0800, Jeff Davis wrote:
> > fsm_pages = 200,000 ??? Based this on some statistics about the number
> > of pages freed from a vacuum on older server. Not sure if its fair
> > to calculate this based on vacuum stats of 7.3.4 server?
> >
>
> Might as well make it a higher number because you have a lot of RAM
> anyway. It's better than running out of space in the FSM, because to
> increase that setting you need to restart the daemon. Increasing this by
> 1 only uses 6 bytes. That means you could set it to 10 times the number
> you currently have, and it would still be insignificant.
You can also run vacuumdb -av and look at the last few lines to see what
it says you need. Or you can get that info out of
contrib/pg_freespacemap.
--
Jim Nasby jim(at)nasby(dot)net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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