Re: [PATCH v7 net-next 09/15] tcp: accecn: AccECN option

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On 5/20/25 12:32 PM, Eric Dumazet wrote:
> On Tue, May 20, 2025 at 2:31 AM Paolo Abeni <pabeni@xxxxxxxxxx> wrote:
>>
>> On 5/14/25 3:56 PM, chia-yu.chang@xxxxxxxxxxxxxxxxxxx wrote:
>>> This patch uses the existing 1-byte holes in the tcp_sock_write_txrx
>>> group for new u8 members, but adds a 4-byte hole in tcp_sock_write_rx
>>> group after the new u32 delivered_ecn_bytes[3] member. Therefore, the
>>> group size of tcp_sock_write_rx is increased from 96 to 112.
>>
>> Note that I'm still concerned by the relevant increase of the cacheline
>> groups size. My fear is that this change could defeat some/most of the
>> benefist from the cacheline reorg for all tcp users.
>>
>> Some additional feedback from Eric and/or Neal more than welcome!
> 
> I have been trapped lately with production issues, sorry for the delay.
> 
> I am still working on an idpf bug, hopefully done today.
> 
> Then, I am OOO tomorrow, and can have a look at the whole series on Thursday.

Thanks Eric!

@Chia-Yu: please consider the above timeline before posting a new
revision. i.e. it would be likely wise to wait for the additional review.

/P





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