On 12/16/20 3:09 PM, Ben Greear wrote:
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.
As a followup, when I revert the patch, upload speed goes to ~900Mbps,
so even better than just disabling TSO (I left TSO enabled after reverting the
patch).
Thanks,
Ben
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
