> -----Original Message-----
> From: Diogo Biazus [mailto:diogo@ikono.com.br]
> Sent: Tuesday, March 30, 2004 1:55 PM
> To: pgsql-general@postgresql.org
> Subject: [GENERAL] Wich hardware suits best for large
> full-text indexed databases
>
>
> Hi folks,
>
> I have a database using tsearch2 to index 300 000 documents.
> I've already have optimized the queries, and the database is
> vacuumed on
> a daily basis.
> The stat function tells me that my index has aprox. 460 000
> unique words
> (I'm using stemmer and a nice stopword list).
> The problem is performance, some queries take more than 10 seconds to
> execute, and I'm not sure if my bottleneck is memory or io.
> The server is a Athlon XP 2000, HD ATA133, 1.5 GB RAM running
> postgresql
> 7.4.3 over freebsd 5.0 with lots of shared buffers and sort_mem...
>
> Does anyone has an idea of a more cost eficient solution?
> How to get a better performance without having to invest some
> astronomicaly high amount of money?
What does the EXPLAIN command say about the slowest queries?