Re: Hardware recommendations

> -----Original Message-----
> From: pgsql-performance-owner@postgresql.org [mailto:pgsql-performance-
> owner@postgresql.org] On Behalf Of Benjamin Krajmalnik
> Sent: Monday, December 13, 2010 1:45 PM
> To: Greg Smith
> Cc: pgsql-performance@postgresql.org
> Subject: Re: [PERFORM] Hardware recommendations
>
>
>
> > -----Original Message-----
> > From: Greg Smith [mailto:greg@2ndquadrant.com]
> > Sent: Saturday, December 11, 2010 2:18 AM
> > To: Benjamin Krajmalnik
> > Cc: pgsql-performance@postgresql.org
> > Subject: Re: [PERFORM] Hardware recommendations
> >

> > Have you increased checkpoint parameters like checkpoint_segments?
> You
> > need to avoid having checkpoints too often if you're going to try and
> > use 4GB of memory for shared_buffers.
> >
>
> Yes, I have it configured at 1024 checkpoint_segments, 5min timeout,0.9
> compiostat -x 5letion_target


I would consider bumping that checkpoint timeout duration to a bit longer
and see if that helps any if you are still looking for knobs to fiddle with.


YMMV.

-Mark