Re: [PATCH net-next 0/9] Split netmem from struct page

[Mina Almasry]

On Wed, Jun 11, 2025 at 7:24 AM Pavel Begunkov <asml.silence@xxxxxxxxx> wrote:
>
> On 6/9/25 05:32, Byungchul Park wrote:
> > Hi all,
> >
> > In this version, I'm posting non-controversial patches first.  I will
> > post the rest more carefully later.  In this version, no update has been
> > applied except excluding some patches from the previous version.  See
> > the changes below.
>
> fwiw, I tried it with net_iov (zcrx), it didn't blow up during a
> short test.
>

FWIW, I ran my devmem TCP tests, and pp benchmark regression tests.
Both look good to me. For the pp benchmark:

Before:

Fast path results:
no-softirq-page_pool01 Per elem: 11 cycles(tsc) 4.337 ns

ptr_ring results:
no-softirq-page_pool02 Per elem: 529 cycles(tsc) 196.073 ns

slow path results:
no-softirq-page_pool03 Per elem: 554 cycles(tsc) 205.195 ns

After:

Fast path results:
no-softirq-page_pool01 Per elem: 11 cycles(tsc) 4.401 ns

ptr_ring results:
no-softirq-page_pool02 Per elem: 530 cycles(tsc) 196.443 ns

slow path results:
no-softirq-page_pool03 Per elem: 551 cycles(tsc) 204.287 ns



-- 
Thanks,
Mina