Re: Hugepages - benefits / drawbacks
From: Christo Kutrovsky <kutrovsky.oracle_at_gmail.com>
Date: Thu, 9 Oct 2008 17:05:51 -0400
Message-ID: <52a152eb0810091405u6a74fdaar3b5099af58021a95@mail.gmail.com>
Date: Thu, 9 Oct 2008 17:05:51 -0400
Message-ID: <52a152eb0810091405u6a74fdaar3b5099af58021a95@mail.gmail.com>
However the problem with Solaris is if you have the database down
while you do ...say file copy operations, then the memory gets
fragmented and when you start it up later it's using smaller pages /
less of the "large" pages.
However, this is not an issue on Solaris at all due to ISM.
-- Christo Kutrovsky DBA Team Lead The Pythian Group - www.pythian.com I blog at http://www.pythian.com/blogs/ On Thu, Oct 9, 2008 at 2:54 PM, jason arneil <jason.arneil_at_gmail.com> wrote:Received on Thu Oct 09 2008 - 16:05:51 CDT
> Hi,
>
> In Solaris, it's called Multiple Page Size Support. And you basically get it
> for FREE.
>
> This link provides fantastic quantity of information regarding this Solaris
> feature.
>
> http://www.solarisinternals.com/wiki/index.php/Multiple_Page_Size_Support
>
> You can find out if your application is taking advantage of it by using
> pmap, which will tell you what page size your application is using.
>
>
> 2008/10/9 Bort, Guillermo <guillermo.bort_at_eds.com>
>>
>> Does anyone have any doc (for the Unix SA) for hugepages on Solaris
>> 9/10?
>> so I can get their help to implement this?
>>
>> TIA
>>
>> Guillermo Alan Bort
>> DBA / DBA Main Team
>>
>> EDS, an HP company
>>
>
>
> jason.
>
>
> --
> http://jarneil.wordpress.com
>
-- 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