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[34.145.139.141]) by smtp.gmail.com with UTF8SMTPSA id d75a77b69052e-4bb18769b2fsm7345041cf.10.2025.09.17.08.03.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Sep 2025 08:03:55 -0700 (PDT) Date: Wed, 17 Sep 2025 11:03:53 -0400 From: Willem de Bruijn To: Eric Dumazet , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Willem de Bruijn , Kuniyuki Iwashima , David Ahern , netdev@vger.kernel.org, eric.dumazet@gmail.com, Eric Dumazet Message-ID: In-Reply-To: <20250916160951.541279-11-edumazet@google.com> References: <20250916160951.541279-1-edumazet@google.com> <20250916160951.541279-11-edumazet@google.com> Subject: Re: [PATCH net-next 10/10] udp: use skb_attempt_defer_free() Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Eric Dumazet 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 Acked-by: Willem de Bruijn LGTM. But I'm not the most familiar with this deferred free path and its conditions.