[RFC PATCH 0/3] nvme sq associations

[Benjamin Herrenschmidt]

On Sat, 2021-09-25 at 12:02 +0900, Keith Busch wrote:
> 
> Different submission queue groups per NVM Set sounds right for this
> feature, but I'm not sure it makes sense for these to have their own
> completion queues: completions from different sets would try to
> schedule on the same CPU. I think it should be more efficient to
> break the 1:1
> SQ:CQ pairing, and instead have all the SQs with the same CPU
> affinity share a single CQ so that completions from different
> namespaces could be handled in a single interrupt.

Can this be an incremental improvement ?

Cheers,
Ben.