Re: first postgrreSQL tunning

On Thu, 06 Jan 2005 11:19:51 -0200
Vinicius Caldeira Carvalho <vinicius(dot)carvalho(at)squadra(dot)com(dot)br> wrote:

> Hi there! I'm doing my first tunning on my postgreSQL, my server is
> for a small app, largest table shall never exceed 10k rows, and less
> than 1k transactions/day. So I don't think I should run out of
> resources. The machine is a Fedora Core 3.0 with 1gb ran and kernel
> 2.6. I'm thinking in having 50 connections limit, so besides
> semaphores should I do anything special on kernel parameters. The app
> is so small that during late night time almost no one will access so,
> I'm thinking in full vacuuming it every day at 1:00AM.
>
> Any tips are very very welcome :D

You'll want to tune shared_buffers and sort_mem. Possibly also
effective_cache_size. It really depends on your system.

Having tuned a ton of apps to work with PostgreSQL what I usually
do is write a small script that does the major resource intensive
queries on the database and time it. Tweak a PostgreSQL parameter
and re-run, wash, rinse, repeat until I get what I believe is the
best performance I can.

---------------------------------
Frank Wiles <frank(at)wiles(dot)org>
http://www.wiles.org
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