Re: Do we have to disable NUMA to configure HugePages?

From: Rajesh Aialavajjala <r.aialavajjala_at_gmail.com>
Date: Fri, 11 Oct 2013 12:24:56 -0400
Message-ID: <CAGvtKv4BWZMU=wxyWSWVUya7EhgcntnY7mGF+8ANc15OLY-AYg_at_mail.gmail.com>



If I'm not mistaken - NUMA was disabled by default starting w/ 11.2 Refer Enable Oracle NUMA support with Oracle Server Version 11.2.0.1 (Doc ID 864633.1) which states "Starting with 11.2.0.1, Oracle NUMA support is disabled by default."

Also - USE_LARGE_PAGES To Enable HugePages (Doc ID 1392497.1)

I believe that starting w/ 11.2 you had to use the "_enable_NUMA_support" parameter to allow / enable this feature.

Also --

http://martincarstenbach.wordpress.com/2012/04/27/little-things-i-didnt-know-difference-between-_enable_numa_support-and-numactl/
http://kevinclosson.wordpress.com/2010/03/18/you-buy-a-numa-system-oracle-says-disable-numa-what-gives-part-i/
http://kevinclosson.wordpress.com/2009/05/14/you-buy-a-numa-system-oracle-says-disable-numa-what-gives-part-ii/
http://kevinclosson.wordpress.com/2010/03/31/you-buy-a-numa-system-oracle-says-disable-numa-what-gives-part-iii/

Thanks,

--Rajesh

On Fri, Oct 11, 2013 at 12:12 PM, fmh <fmhabash_at_gmail.com> wrote:

> I have seen references in MOS docs (Doc ID 1484809.1) & (803238.1) to
> disable NUMA before configuring HPs. They were specific to 10g and 11.1.
> Is this required for 11.2 (or may be at all)? Can't locate a clear cut
> answer.
>
> --
>
> ----------------------------------------
> Thank you.
>
>
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Received on Fri Oct 11 2013 - 18:24:56 CEST

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