On 2025/1/9 05:06, Tony Nguyen wrote:
>
>
> On 1/7/2025 7:36 PM, Haifeng Xu wrote:
>>
>>
>> On 2025/1/8 01:16, Tony Nguyen wrote:
>
> ...
>
>>>
>>> What's your ntuple filter setting? If it's off, I suspect it may be the
>>> Flow Director ATR (Application Targeting Routing) feature which will
>>> utilize all queues. I believe if you turn on ntuple filters this will turn
>>> that feature off.
>>
>> Yes, our ntuple filter setting is off. After turning on the ntuple filters,
>> I compare the delta of recieved packets,
>> only 0~15 rx rings are non-zero, other rx rings are zero.
>>
>> If we want to spread the packets across 0~62, how can we tune the NIC
>> setting?
>> we have enabled 63 rx queues, irq_affinity and rx-flow-hash, but the 0~15 cpu
>> received more packets than others.
>
> As Jakub mentioned earlier, HW RSS is only supported on this device for 16
> queues. ATR will steer bi-directional traffic to utilize additional queues,
> however, once its exhausted it will fallback to RSS, which is why CPUs 0-15
> are receiving more traffic than the others. I'm not aware of a way to evenly
> spread the traffic beyond the 16 HW supported RSS queues for this device.
Ok, thanks!
>
> Thanks,
> Tony
>
>> Thanks!
>
>
