By mistake we took this discussion privately, and I can't be bothered to
repeat it. It will be enough with noting that...
Instead of flushing a dirty page in memory to its correct location on
the disk (which would cause a lot of disk head movement and thus
take a lot of time) all dirty pages can be written to one continuous
area on the disk and then when there is more time the correct pages
on the disk can be updated.
...this seems to be a very minor improvement, as with elevator searching
you would flush memory to disk twice per elevting cycle instead of
once, which doesn't really seem a useful improvement.
--
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/
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