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Home -> Community -> Mailing Lists -> Oracle-L -> RE: "SQL AREA" and "LIBARARY CACHE" size?
Hi Tanel,
There was a note in the bug database back in 7.1 days that suggested that it was hard coded based on the chunk type, and so that's what I wrote in my book.
However, I fear that that might have been wrong. At least it is in recent versions. It is not hard to set up a test in which you can see chunks moving from the transient to recurrent list. My best guess at the moment is that when new recreatable chunks are first unpinned, they go onto the transient list, and then when they have been reused, they go back onto the recurrent list.
@ Regards, @ Steve Adams @ http://www.ixora.com.au/ - For DBAs @ http://www.christianity.net.au/ - For all
-----Original Message-----
Tanel Poder
Sent: Thursday, 25 September 2003 9:45 PM
To: Multiple recipients of list ORACLE-L
As I understand SQL area is a subset of library cache which is a subset of shared pool.
Taking advantage the opportunity that Steve is here, I'd like to ask how does Oracle distinguish between recurrent and transient chunks? Is this hardcoded, that certain types of chunks go to transient end of LRU list and others go to rcr end or is this based on some kind of touch count as well, like in buffer cache LRU list?
Tanel.
>
> Hi Steve,
>
> Sorry for it, but I want to correct one thing that is ,
> it is Libarray cache which is subset of SQL area which intern subset of
> shared pool.
>
>
> With Regards,
> Manoj Kumar Jha
>
> --------------------------------------------------------------------------
--Received on Thu Sep 25 2003 - 09:39:40 CDT
>
> ---------------------------------------
>
> A transcendentalist engaged in auspicious activities does not meet with
> destruction either in this world or in the spiritual world; one who does
> good,
> is never overcome by evil.
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> "bhabani s pradhan"
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> <bhabaniindia_at_redif To: Multiple recipients
> of list ORACLE-L <ORACLE-L_at_fatcity.com>
> fmail.com> cc:
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> Sent by: Subject: Re: "SQL AREA"
> and "LIBARARY CACHE" size?
> ml-errors_at_fatcity.c
>
> om
>
>
>
>
>
> 09/25/03 01:04 PM
>
> Please respond to
>
> ORACLE-L
>
>
>
>
>
>
>
>
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> You cannot control the sizes of sql area and library cache
> individually
>
> Regards
> ============
>
> On Thu, 25 Sep 2003 ManojKr Jha wrote :
> >
> >
> >
> >Hi,
> >
> >Any body have any idea about how to control the size of "library
> >cache" and
> >"sql area" in shared_pool?
> >
> >With Regards,
> >Manoj Kumar Jha
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