Re: Hugepages - benefits / drawbacks
- From: "Christo Kutrovsky" <kutrovsky.oracle@xxxxxxxxx>
- To: yong321@xxxxxxxxx
- Date: Tue, 7 Oct 2008 14:25:40 -0400
I have a presentation on Memory that demonstrates some of the benefits
from HugePages.
You can watch the presentation here:
http://www.pythian.com/blogs/741/pythian-goodies-free-memory-swap-oracle-and-everything
--
Christo Kutrovsky
DBA Team Lead
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/
On Tue, Oct 7, 2008 at 1:26 PM, Yong Huang <yong321@xxxxxxxxx> wrote:
> Hi Krishna,
>
>> on Solaris PGA uses ISM
>
> Wouldn't that cause PGA to be shared?
>
>> 4. The formula you want to use
>>
>> Physical Memory > shmall > (shmmax = nr_hugepages)
>
> I think the shmmax part can be relaxed. It's just a mathematical limit
> anyway. Setting it to a very high number does no harm.
>
> Other points are excellent.
>
> Yong Huang
>
>
>
> --
> //www.freelists.org/webpage/oracle-l
>
>
>
--
Christo Kutrovsky
DBA Team Lead
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/
--
//www.freelists.org/webpage/oracle-l
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