Re: Memory used by a single oracle server process in Solaris

Sreejith

Following up on just the OTN thread from now on, but won't pmap also be reporting the size of the Oracle executable - which is probably around the 100MB difference you're seeing.

Regards

Jonathan Lewis
http://jonathanlewis.wordpress.com

• Original Message ----- From: "Sreejith S Nair" <Sreejith.Sreekantan_at_ibsplc.com> To: <jonathan_at_jlcomp.demon.co.uk> Cc: <oracle-l_at_freelists.org>; <oracle-l-bounce_at_freelists.org> Sent: Tuesday, August 23, 2011 11:19 AM Subject: Re: Memory used by a single oracle server process in Solaris

> This comes close to what I got from 'session_pga_memory' which is close
> to 71 MB.
>
> Still, I did not get the memory I derived from this calculation .
>
> shared memory= 4710400 ( shmid from pmap )
> RSS = 4901764 from pmap and ps .
>
> So RSS - shared memory = PGA used by this process + (code + data ) ?
>
> If Yes then PGA + (code + data ) = 4901764 - 4710400 = 191364 kb = 186
> MB.
>
> I am getting PGA as 71 MB, so rest ( 186 - 71 ) is the memory for code +
> data ?
>
> I suspect, I might be missing something here ?
>

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