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    SubjectRe: [PATCH 0/2] dm-band: The I/O bandwidth controller: Overview
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    Hi Peter,

    > What definition of bandwidth does it use? Does it for example account
    > for seek latency?

    The bandwidth in dm-band is determined by the proportion of the
    processing time of each device's tokens(I/Os) to the processing time
    of all device's tokens(I/Os).
    The processing time of one token(I/O) is determined by one I/O cycle
    include seek latency, interrupt latency, etc...

    Thanks,
    Ryo Tsuruta <ryov@valinux.co.jp>


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