On Wed, Oct 28, 2009 at 12:11 PM, Denis BUCHER <dbuche...@hsolutions.ch>wrote:
> Dear all, > > I need to optimize a database used by approx 10 people, I don't need to > have the perfect config, simply to avoid stupid bottle necks and follow > the best practices... > > The database is used from a web interface the whole work day with > "normal" requests (nothing very special). > > And each morning huge tables are DELETED and all data is INSERTed new > from a script. (Well, "huge" is very relative, it's only 400'000 records) > use truncate, to clear the tables. > > For now, we only planned a VACUUM ANALYSE eacha night. > if it is 8.3+, don't , as autovacuum takes care of that. > > But the database complained about checkpoint_segments (currently = 3) > depending on traffic, that's pretty low. You should increment it, beyond 12 if possible. > > What should be changed first to improve speed ? > * memory ? > *??? > Thanks a lot for any advice (I know there are plenty of archived > discussions on this subject but it's always difficult to know what very > important, and what's general as opposed to specific solutions) > again, if it is 8.3+ (and everyone here would advice you to run at least that version), try using pg_tune script to get best performance settings. -- GJ
