From: Jason Wang <jasow...@redhat.com> Date: Wed, 23 Jan 2019 17:55:52 +0800
> This series tries to access virtqueue metadata through kernel virtual > address instead of copy_user() friends since they had too much > overheads like checks, spec barriers or even hardware feature > toggling. > > Test shows about 24% improvement on TX PPS. It should benefit other > cases as well. I've read over the discussion of patch #5 a few times. And it seems to me that, at a minimum, a few things still need to be resolved: 1) More perf data added to commit message. 2) Whether invalidate_range_start() and invalidate_range_end() must be paired. Etc. So I am marking this series "Changes Requested".
