Re: recreable/freeable chunks

> You are right. But the actual freeing process (from the re-creatable
> chunks) is quite different from what you have explained. The

Yup, I didn't want to get too much in details about different LRU lists, otherwise the post would have got too long.

> recreatable chunks (they are freeable, but can be re-creatable if
> required as you have explained) will be falling in two catagories.

Are you saying that a freeable chunk can become recreatable? The recr and freeable chunks have different headers in structure and size AFAIK? Or did you mean that one can explicitly free a recreatable chunk if needed?

>
> They are either pinned or un pinned. The unpinned list again has two
> separate lists (two LRU lists, one for transient and another one is for
> recurrent), and the freeing process starts from transient list.

Btw, does Oracle really have two different physical lists for transient and recurrent unpinned recreatable chunks or is there just one, with two, transient and recurrent, ends?

Thanks,
Tanel.

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Author: Tanel Poder
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