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[dm-devel] Re: [PATCH 12/23] io-controller: Wait for requests to complete from last queue before new queue is scheduled



Vivek Goyal wrote:

o Because above behavior can result in reduced throughput, this behavior will
  be enabled only if user sets "fairness" tunable to 1.

o This patch helps in achieving more isolation between reads and buffered
writes in different cgroups.

Could be a nice help against SATA NCQ request starvation.

Signed-off-by: Vivek Goyal <vgoyal redhat com>

Acked-by: Rik van Riel <riel redhat com>

--
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