On Sun, 25 Nov 2007 17:56:54 +0100
Adrian Bunk <[email protected]> wrote:
> Is there any technical reason why we need 4 different schedulers at
> all?
>
there is at least one technical reason to need more than one: certain
types of storage (both big EMC boxes as well as solid state disks)
don't behave like disks and have no seek penalty; any cpu time spent on
avoiding seeks is wasted on those, so for these devices one really
wants to use a different IO scheduler, one which is much lighter weight
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