Re: [Firebird-devel] DB cache

[Mike N. <ta...@al...>]

Marco Menardi asked:

> I'm complitely ignorant in FB code, so apologise for it.
> I'm just wondering how could it be that whas implemented a such
> inefficient way of writing.

A dirty page can point to a page it depends on (or if it's the other way
around), and so on and so on. The function doing the writing is first
recursing to find all those dependent pages, and then writing them -
disregarding their order.

What I did was a hackish three-pass: First collect them, then sort them and
finally write them in ascending order.


/Mike