Hello Eric, The patch below evidently causes TCP throughput to be about 50Mbps instead of 700Mbps when using ax200 to upload tcp traffic.
When I disable TSO, performance goes back up to around 700Mbps. I recall ~5 years ago we had similar TCP related performance issues with ath10k. I vaguely recall that there might be some driver-level socket pacing tuning value, but I cannot find the right thing to search for. Is this really a thing? If so, maybe it will be a way to resolve this issue? See this more thorough bug report: https://bugzilla.kernel.org/show_bug.cgi?id=209913 Patch description: net: tso: add UDP segmentation support Note that like TCP, we do not support additional encapsulations, and that checksums must be offloaded to the NIC. Signed-off-by: Eric Dumazet <eduma...@google.com> Signed-off-by: David S. Miller <da...@davemloft.net> Thanks, Ben -- Ben Greear <gree...@candelatech.com> Candela Technologies Inc http://www.candelatech.com
