Re: How to debug the performance issues via which system catalog.Thanks.

On 05/17/2012 11:54 AM, leaf_yxj wrote:
> I know we can know the currenct activity via pg_stat_activity. What's else
> you guys use to debug.
> And for some times back, how can we check the activities?
>
> Thanks.
>
> Grace
Performance is a complex enough issue to warrant its own mailing list
(CPU type, number of cores, OS, OS settings, PG configuration, disk
type/count/filesystem/raid-configuration and so on).

Greg Smith's "PostgreSQL 9.0 High Performance" is worth every penny.

While waiting for it to arrive, peruse the pages at
http://wiki.postgresql.org/wiki/Performance_Optimization

Cheers,
Steve