Re: Seeking performance advice and explanation for high I/O on 8.3

On Thu, Sep 3, 2009 at 7:11 PM, Scott Otis<scott.otis@intand.com> wrote:
>> Can you post to the list all the uncommented lines from your
> postgresql.conf file and attach the results of "select * from
> pg_stat_all_tables" as an attachment?
>
> I attached a CSV of "select * from pg_stat_all_tables" from one of our
> more heavily used databases.  Note: I turned off stats collection and
> autvacuuming a couple days ago to see what it would do and then
> restarted postgres - I turned those back on this morning to that is why
> there aren't more autovacuumed and autoanalyzed tables.

Do you by any chance have a bazillion databases in this cluster?  Can
you do these?

select sum(1) from pg_database;
select pg_relation_size('pg_database');
select sum(pg_column_size(d.*)) from pg_database;

...Robert