On Sun, Nov 17, 2013 at 09:00:05PM +0900, Michael Paquier wrote:
> On Sun, Nov 17, 2013 at 8:25 PM, Stefan Keller <sfkeller@gmail.com> wrote:
> > How can Postgres be used and configured as an In-Memory Database?
> >
> > Does anybody know of thoughts or presentations about this "NoSQL feature" -
> > beyond e.g. "Perspectives on NoSQL" from Gavin Roy at PGCon 2010)?
> >
> > Given, say 128 GB memory or more, and (read-mostly) data that fit's into
> > this, what are the hints to optimize Postgres (postgresql.conf etc.)?
> In this case as you are trading system safety (system will not be
> crash-safe) for performance... The following parameters would be
> suited:
> - Improve performance by reducing the amount of data flushed:
> fsync = off
> synchronous_commit=off
> - Reduce the size of WALs:
> full_page_writes = off
> - Disable the background writer:
> bgwriter_lru_maxpages = 0
> Regards,
FYI, the Postgres manual covers non-durability settings:
http://www.postgresql.org/docs/9.3/static/non-durability.html
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +