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SubjectRe: More on 2.2.18pre2aa2
> Going in function of time is obviously wrong. A blockdevice can write 1
> request every two seconds or 1 request every msecond. You can't assume
> anything in function of time _unless_ you have per harddisk timing
> informations into the kernel.

Andrea - latency is time measured and perceived. Doing it time based seems to
make reasonable sense. I grant you might want to play with the weighting per
device, but actually keeping device based dirty list length limits based on
average throughput is probably a lot more productive

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