Re: [PATCH v3 1/1] gro: decrease size of CB

[David Ahern]

On 6/28/23 6:42 AM, Gal Pressman wrote:
> On 27/06/2023 17:21, David Ahern wrote:
>> On 6/26/23 2:55 AM, Gal Pressman wrote:
>>> I believe this commit broke gro over udp tunnels.
>>> I'm running iperf tcp traffic over geneve interfaces and the bandwidth
>>> is pretty much zero.
>>>
>>
>> Could you add a test script to tools/testing/selftests/net? It will help
>> catch future regressions.
>>
> 
> I'm checking internally, someone from the team might be able to work on
> this, though I'm not sure that a test that verifies bandwidth makes much
> sense as a selftest.
> 

With veth and namespaces I expect up to 25-30G performance levels,
depending on the test. When something fundamental breaks like this patch
a drop to < 1G would be a red flag, so there is value to the test.