Re: Auto-tuning work_mem and maintenance_work_mem

On 2013-10-15 10:19:06 -0700, Josh Berkus wrote:
> On 10/15/2013 05:52 AM, Magnus Hagander wrote:
> > But the argument about being friendly for new users should definitely
> > have us change wal_level and max_wal_senders.
>
> +1 for having replication supported out-of-the-box aside from pg_hba.conf.
>
> To put it another way: users are more likely to care about replication
> than they are about IO overhead on a non-replicated server. And for the
> users who care about IO overhead, they are more likely to much about in
> pg.conf *anyway* in order to set a slew of performance-tuning settings.

But it will hurt people restoring backups using pg_restore -j. I think
people might be rather dissapointed if that slows down by a factor of
three.

I think we really need to get to the point where we increase the wal
level ondemand...

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services