Hi Manoj,

this is the statistics i got from one of my instance.
        sql area                225 MB
        library cache   112 MB

I was also confused as u were [ i didn't notice this so far ].
but reading the replies of Tanel & Steve once again:

<tanel>
But what Steve meant (please correct me if I'm wrong), is that operations on
sql areas are managed by library cache structures (library cache latch, KGL
manager, lib cache hash table, etc), so sql area is dependent on library
cache, despite the fact they both have memory allocated directly from shared pool.
</tanel>

from this (and as per the docs) i understand that sql area is a subset of library 
cache.
perhaps,what "subset" means is:
 in terms of the control library cache has over sql area and not in terms of memory 
allocated.
is my understanding correct, Tanel ?

<steve>
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.
</steve>

..and reading this post by Steve,i feel there is something more(a lot) that we need to 
know/understand to discuss about this.

Can Steve/Tanel/List explain me what is transient chunk & recurrent chunk ?

Regards,
Jp.

P.S.Thanx Naveen.






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