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SubjectRe: elevator algorithm bug in ll_rw_blk.c
On 16-Nov-98 Helge Hafting wrote:
> You would need to do timing tests on every physical cylinder (not
> knowing where they start in the first place) and build a big table.
> Not something we want during bootup. And timing could go wrong
> if anything else happen with the machine in the meantime.

yes, but doing this when mkfs runs might be feasable
or perhaps why not tackle a subset of the problem and just optimise swap partitions

not knowing for sure, but are writes stored per disk or per partition and could
the ordering of reads/writes be done differenly for say the swap partition as
opposed to say an ordinary file system?
putting the swap in the middle of the disk might be an option
--
simon

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