Re: 7 hrs for a pg_restore?

Richard Huxton <dev@archonet.com> writes:
> Douglas J Hunley wrote:
>> I spent a whopping seven hours restoring a database late Fri nite for a

> Oh, and have you tweaked the configuration settings for the restore?
> Lots of work_mem, turn fsync off, that sort of thing.

maintenance_work_mem, to be more specific.  If that's too small it will
definitely cripple restore speed.  I'm not sure fsync would make much
difference, but checkpoint_segments would.  See
http://www.postgresql.org/docs/8.3/static/populate.html#POPULATE-PG-DUMP

Also: why did you choose -o ... was there a real need to?  I can see
that being pretty expensive.

            regards, tom lane