Re: [RFC] optimize nvme single segment I/O

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On Thu, Mar 21, 2019 at 04:10:22PM -0700, Christoph Hellwig wrote:
> Hi all,
> 
> with all the discussion on small I/O performance lately I thought
> it was time off to dust my old idea to optimize this path a bit
> by avoiding to build a scatterlist.  I've only done very basic
> testing because I've been a bit busy, but I thought it might be
> worthwhile to get it out for feedback.

Tests well here with a measurable IOPs improvement at lower queue depths.

Series looks good to me, especially patch 5! :p

Reviewed-by: Keith Busch <keith.busch@xxxxxxxxx>



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