Re: Postgres 9.2 CPU Usage

Hmm.. Thank you! I will try it!

--
Vasiliy I Ozerov

пятница, 20 декабря 2013 г. в 1:20, ktm(at)rice(dot)edu написал:

> On Fri, Dec 20, 2013 at 12:56:47AM +0400, Vasiliy I Ozerov wrote:
> > Good day!
> >
> > Sometimes ago we order new Dell (Dell PowerEdge T720 DX290) server, with this configuration:
> >
> > 1. 128 Gb DDR3 ECC RAM
> > 2. Dual Intel Xeon E5-2620 Hexa Core incl. Hyper-Thrreading Tecknology
> > 3. 2x 600Gb SSD With PERC H710 mini RAID 1
> >
> > ...
> >
> > But we have a strange cpu usage by postgresql (LA about 4). But there is no a lot of requests or heavy requests. We use pgbouncer, so postgresql doesn’t accept connections from users, only from pgbouncer. And the number of active requests per second is about 5:
> >
> > ...
> >
> > I think it is some misconfiguration issue, so can you help me with some config/sysctl options for such server?
> >
> > Thank you!
>
> Hi Vasiliy,
>
> I think this may not be a PostgreSQL related problem, but a BIOS configuration
> problem. Dell used to ship servers with the BIOS set for performance mode, i.e.
> 100% at all times, now they ship with more energy thrifty defaults. We had a
> similar problem and by setting the BIOS to performance mode and rebooting, the
> phantom load vanished.
>
> Regards,
> Ken
>
>