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SGA Free memory

SGA Free memory

2006-02-11       - By Jonathan Lewis

Reply:     1     2     3     4     5     6     7     8  


Thanks for the reference - interesting paper.

Regards

Jonathan Lewis
http://www.oracle.com/technology/community/oracle_ace/ace1.html#lewis

The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

Cost Based Oracle: Fundamentals
http://www.jlcomp.demon.co.uk/cbo_book/ind_book.html


-- -- Original Message -- --
From: "Luca Canali" <Luca.Canali@(protected)>
To: <oracle-l@(protected)>
Sent: Friday, February 10, 2006 8:15 AM
Subject: RE: SGA Free memory


Hi Jonathan,

>    loop
>        detach some items from end of library cache LRU
>        distribute items to shared pool free list - coalescing where
possible
>        check for large enough chunk on free list
>        return if allocation succeeds
>    end loop
>
>    There may be a limit on the number of times round the loop -

Apparently the limit is 5 iterations (see Russell Green, OOW Sep. 2005)

Regards,
Luca

-- ---- ---
Luca Canali
Information Technology Department
European Organization for Nuclear Research
CERN                
CH-1211 Geneva 23
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