Re: [PATCH 0/2] range-bw : Another I/O scheduling policy of dm-ioband (v1)

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On Mon, May 4, 2009 at 6:56 AM, Dong-Jae Kang <baramsori72@xxxxxxxxx> wrote:
> range-bw has two kinds of operation modes, min-max and max mode.
> Min-max mode is to supports guaranteeing the minimum I/O requirement
> and limitation of unnecessary I/O bandwidth at the same time. And max
> mode is to support only limitation. So in case of min-max mode, you
> need to configure min-bw and max-bw values and in case of max mode,
> configure only max-bw.

Please forgive me if I missed a previous discussion, but how is max
mode different from min-max mode with a minimum of zero?  I understand
that there may be some special-case optimizations you can do
internally, but it's unclear to me why you need two different
interfaces.

-- Chris
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