From: Andy Gospodarek <andrew.gospoda...@broadcom.com> Date: Tue, 24 Apr 2018 11:02:46 -0400
> There is also an advantage that since this is done a per queue basis one > queue that may be handling a bulk transfer can have its coalescing > parameters adjusted while others stay at a setting that keeps traffic > flowing at low latency. This is helpful when a system is receiving a > large amount of traffic on one queue but also sending data on another > queue and quick processing of acks keeps data flowing at high rate with > low CPU utilization in both directions. Ok, that's the missing piece on my end. My original analysis of this problem space was on uni-queue NICs, and the problem there is that the sampling algorithm is exposed to the traffic anomalies of the entire link rather than a specific sub-class of traffic as is the case with multiqueue NICs.
