On Wed, 2016-11-30 at 20:17 +0100, Jesper Dangaard Brouer wrote: > Don't take is as critique Eric. I was hoping your patch would have > solved this issue of being sensitive to TX completion adjustments. You > usually have good solutions for difficult issues. I basically rejected > Achiad's approach/patch because it was too sensitive to these kind of > adjustments.
Well, this patch can hurt latencies, because a doorbell can be delayed, and softirqs can be delayed by many hundred of usec in some cases. I would not enable this behavior by default.