Re: Hugepages - benefits / drawbacks

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_at_yahoo.com> 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

>

>

>

> --

> http://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/
--
http://www.freelists.org/webpage/oracle-l