From: Ioana Ciocoi Radulescu <ruxandra.radule...@nxp.com> Date: Thu, 8 Nov 2018 20:21:15 +0000
> Today I tried to further coalesce the confirmation frames such that I call > netdev_tx_completed_queue() only at the end of the NAPI poll, once for each > confirmation queue that was serviced during that NAPI. That sounds like exactly what you should do given your design description. > I need to do more testing, but so far it performs *almost* on par > with the non-BQL driver version. But it does complicate the fastpath > code and feels somewhat unnatural. Well, this is exactly what should happen with BQL and as a result you will get much better TCP queue utilization and avoidance of bufferbloat.
