Samuel,
> I ran a search query against two tables keywords and catalog.
> Keywords table has about 765,000 records and catalog hase about
> 147,000 records. The query returns 9,000 records. This query had 70 -
> 80% of CPU usage. Are there any configuration parameter(s) that I
> need to check and change ?
And this is a problem because .... ?
High CPU usage is a *good* thing. Under perfect tuning, Postgres would
hit about 97% CPU usage ... for about 0.1 seconds (or less, depending
on your processor). The more CPU power used, the faster the query is
solved.
If you're having performaince problems, I suspect that they are located
somewhere other than your CPU.
-Josh Berkus