[Xen-devel] Re: [PATCH 0/2] dm-band: The I/O bandwidth controller: Overview

[Ryo Tsuruta <ryov@xxxxxxxxxxxxx>]

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@xxxxxxxxxxxxx>

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