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ok,
thanks i will look into walbuffers asynchronous_commit=off is a doubt for responsive environment (pg manual). for ex. would it help if, a game player , has to perform next move on basis of his/her previous move plus other players move. all is sent to table and for each player a particular set is retrieved with a minimalistic data portfolio
> Date: Thu, 18 Oct 2012 11:24:00 -0300 > From: alvherre@xxxxxxxxxxxxxxx > To: laurenz.albe@xxxxxxxxxx > CC: arvindps@xxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx > Subject: Re: Improve MMO Game Performance > > Albe Laurenz wrote: > > Arvind Singh wrote: > > > Are there any particular settings or methods available to improve Just > > insert_table operations > > > > The obvious ones: > > - Wrap several of them in a transaction. > > - Increase checkpoint_segments. > > - Set fsync=off and hope you don't crash. > > I think it would work to set asynchronous_commit=off for the > transactions that insert moves. That way, the fsync flushes happen in > the background and are batched. Raising wal_buffers is probably a good > idea, and keep an eye on how the walwriter is doing. > > -- > Álvaro Herrera http://www.2ndQuadrant.com/ > PostgreSQL Development, 24x7 Support, Training & Services |
