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 |
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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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