Re: linux memory settings on OL 6.2 ( red hat compatible )
From: Gerard H. Pille <ghp_at_skynet.be>
Date: Sun, 09 Sep 2012 18:40:58 +0200
Message-ID: <504cc69a$0$3112$ba620e4c_at_news.skynet.be>
John Hurley wrote:
> Our new servers are going thru initial testing now ... moving to 11.2
> database and ( at least currently ) OL 6.2 red hat compatible kernel.
> Was going to try UEK or UEK2 but ... powerpath driver compatibility.
> Kills me that EMC is not keeping stuff up to date with oracles
> preferred kernels ... but c'est la vie.
>
> Each of these machines has 96 gb of RAM.
>
> We just finished discovering some issues/bugs with the default setting
> of anonymous huge pages and set now to never these two:
> echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
> echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag
Date: Sun, 09 Sep 2012 18:40:58 +0200
Message-ID: <504cc69a$0$3112$ba620e4c_at_news.skynet.be>
John Hurley wrote:
> Our new servers are going thru initial testing now ... moving to 11.2
> database and ( at least currently ) OL 6.2 red hat compatible kernel.
> Was going to try UEK or UEK2 but ... powerpath driver compatibility.
> Kills me that EMC is not keeping stuff up to date with oracles
> preferred kernels ... but c'est la vie.
>
> Each of these machines has 96 gb of RAM.
>
> We just finished discovering some issues/bugs with the default setting
> of anonymous huge pages and set now to never these two:
> echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled
> echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag
John, what kind of issues did you have?
Thanks,
Gerard Received on Sun Sep 09 2012 - 11:40:58 CDT