netdev - Re: [PATCH net-next 10/10] udp: use skb_attempt_defer

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Message-ID: <CAAVpQUABH60vAgw_wiO3cJ=3uG+E+3AZG-atxDk+cGqd31Jc-Q@mail.gmail.com>
Date: Wed, 17 Sep 2025 11:20:12 -0700
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
	Willem de Bruijn <willemb@...gle.com>, David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org, 
	eric.dumazet@...il.com
Subject: Re: [PATCH net-next 10/10] udp: use skb_attempt_defer_free()

On Tue, Sep 16, 2025 at 9:10 AM Eric Dumazet <edumazet@...gle.com> wrote:
>
> Move skb freeing from udp recvmsg() path to the cpu
> which allocated/received it, as TCP did in linux-5.17.
>
> This increases max thoughput by 20% to 30%, depending
> on number of BH producers.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>