Re: [PATCH 2 of 9] block: Export I/O topology for block devices and partitions

[Carl Henrik Lunde]

> On Fri, Apr 24, 2009 at 07:32, Martin K. Petersen <martin.petersen@xxxxxxxxxx> wrote:
> +What:          /sys/block/<disk>/alignment
> +What:          /sys/block/<disk>/<partition>/alignment
> +What:          /sys/block/<disk>/queue/minimum_io_size
> +What:          /sys/block/<disk>/queue/optimal_io_size

Would it also be possible and useful to include the number of
spindles/channels, i.e., how many requests the device can handle
concurrently?  CFQ could for example serve two time slices
concurrently if you have sequential reads and the device reports two
spindles.

[sorry for replying in the middle of the thread, but I didn't get the
original email]
-- 
mvh
Carl Henrik
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