From: | Sean Chittenden <sean(at)chittenden(dot)org> |
---|---|
To: | Brian Hirt <bhirt(at)mobygames(dot)com> |
Cc: | "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>, pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Moving postgresql.conf tunables into 2003... |
Date: | 2003-07-03 23:25:35 |
Message-ID: | 20030703232535.GT72567@perrin.int.nxad.com |
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Lists: | pgsql-performance |
> I'm curious how many of the configuration values can be determined
> automatically, or with the help of some script. It seem like there
> could be some perl script in contrib that could help figure this out.
> Possibly you are asked a bunch of questions and then the values are
> computed based on that. Something like:
>
> How many tables will the system have?
> How much memory will be available to the postmaster?
> How many backends will there typically be?
> What is the avg seek time of the drive?
> What's the transfer rate of the drive?
>
> Seems to me that a lot of reasonable default values can be figure out
> from these basic questions. FSM settings, Sort Mem, Random Page Cost,
> Effective Cache Size, Shared Memor, etc, etc.
Someone was working on a thing called pg_autotune or some such program
that'd do exactly what you're thinking of.
http://archives.postgresql.org/pgsql-performance/2002-10/msg00101.php
http://gborg.postgresql.org/project/pgautotune/projdisplay.php
--
Sean Chittenden
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