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SubjectRe: Linux 2.4.18pre3-ac1
> in the "Writeout in recent kernels..." thread) on this release. Performance and
> observed writeout behavior was essentially the same as for 2.4.17, both stock
> and with -rmap11a. Transfer time was 6:56 and writeout was uneven. 2.4.13-ac7 is
> still the winner by a significant margin.

That is very useful information actually. That does rather imply that some
of the performance hit came from the block I/O elevator differences in the
old ac tree (the ones Linus hated ;)). Now the question (and part of the
reason Linus didnt like them) - is why ?

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