Re: Performance on IBM Power 7

I forgot to mention that the system we observed the issue was migrated from
Intel Nehalem. Looks like that even P7 is more powerful in terms of cores
and threads but from point of view of core by core basis is not as fast as
Nehalem

--
LSC




On Wed, Jan 19, 2011 at 11:19 PM, Peter Barnett <regdba@xxxxxxxxx> wrote:

> We are using several p7 frames and VIO.  We are consolidating all of our
> databases on six p7 frames to take advantage of CPU licensing and get rid of
> a pile of individual servers.
>
> So far no issues.
>
> Pete Barnett
> Database Technologies Lead
> Regence
>
> --- On *Wed, 1/19/11, Allen, Brandon <Brandon.Allen@xxxxxxxxxxx>* wrote:
>
>
> From: Allen, Brandon <Brandon.Allen@xxxxxxxxxxx>
> Subject: RE: Performance on IBM Power 7
> To: "exriscer@xxxxxxxxx" <exriscer@xxxxxxxxx>, "Oracle Mailinglist" <
> oracle-l@xxxxxxxxxxxxx>
> Date: Wednesday, January 19, 2011, 12:43 PM
>
>
>  You might want to see this old thread I started on the same subject last
> year:
>
>
>
> http://www.freelists.org/post/oracle-l/Oracle-on-IBM-Power7
>
>
>
> I upgraded from P5 to P7 about 6 months ago and performance has been great
> except that we are actually allocating less CPU to the primary database
> server now since we also implemented a standby as part of the same project
> and had to transfer some of the CPU license over there.  With the decrease
> in CPU allocated to the primary DB server, concurrent activity slows down a
> bit during our weekly full backups, but other than that everything runs as
> fast or faster than on the old server.
>
>
>
> If you’re experiencing problems you might want to look into the TurboCore
> mode, or using Intelligent Threads technology to set it to just a single
> thread per core.  We didn’t use either of those here – our performance was
> fine with the default multi-threading.
>
>
>
> Regards,
>
> Brandon
>
>
>
>
>
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *LS Cheng
>
> Has anyone experienced hardware upgrade from IBM P6 to IBM P7. Any
> performance issues.
>
>
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