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Re: Hardware recommendations

From: "mark" <dvlhntr(at)gmail(dot)com>
To: "'Benjamin Krajmalnik'" <kraj(at)servoyant(dot)com>,"'Greg Smith'" <greg(at)2ndquadrant(dot)com>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Hardware recommendations
Date: 2010-12-14 03:29:16
Message-ID: 00b701cb9b3f$17c8ed80$475ac880$@com (view raw or flat)
Thread:
Lists: pgsql-performance

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





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