On Thu, 5 May 2022 17:33:39 +0000 Robert Hancock wrote:

On Wed, 2022-05-04 at 19:20 -0700, Jakub Kicinski wrote:

quoted

On Mon, 2 May 2022 19:30:51 +0000 Radhey Shyam Pandey wrote:  

quoted

Thanks for the patch. I assume for simulating heavy network load we
are using netperf/iperf. Do we have some details on the benchmark
before and after adding TX NAPI? I want to see the impact on
throughput.  

Seems like a reasonable ask, let's get the patch reposted 
with the numbers in the commit message.  

Didn't mean to ignore that request, looks like I didn't get Radhey's email
directly, odd.

I did a test with iperf3 from the board (Xilinx MPSoC ZU9EG platform) connected
to a Linux PC via a switch at 1G link speed. With TX NAPI in place I saw about
942 Mbps for TX rate, with the previous code I saw 941 Mbps. RX speed was also
unchanged at 941 Mbps. So no real significant change either way. I can spin
another version of the patch that includes these numbers.

Sounds like line rate, is there a difference in CPU utilization?