On Thu, Dec 21, 2017 at 02:01:44PM -0700, Jens Axboe wrote: > I haven't either, but curious if others had. It's mostly just extra > overhead, I haven't seen it provide a latency reduction of any kind. I've removed the submission side poll in a local build, and amazingly I am observing a not insignificant increase in latency without it on some workloads with certain hardware. I will have to delay recommending/posting removal of this pending further investigation.
