2011/1/27 Andres Freund <andres@anarazel.de>:
> On Thursday, January 27, 2011 12:24:10 PM Cédric Villemain wrote:
>> > maintenance_work_mem = 512MB
>> 128MB is usualy enough
> Uhm, I don't want to be picky, but thats not really my experience. Sorts for
> index creation are highly dependent on a high m_w_m. Quite regularly I find the
> existing 1GB limit a probleme here...
That is right for index creation, but not for 'pure' maintenance
stuff. Once the database is running as usual, there is no really point
to give auto-vacuum or auto-analyze much more (depend on the raid card
memory too ...)
--
Cédric Villemain 2ndQuadrant
http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support