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Mon, 17 Nov 2025 23:07:06 -0800 (PST) Received: from KERNELXING-MB0.tencent.com ([43.132.141.20]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-345651183b2sm11868494a91.2.2025.11.17.23.07.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Nov 2025 23:07:06 -0800 (PST) From: Jason Xing To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org Cc: netdev@vger.kernel.org, Jason Xing Subject: [PATCH net-next 2/4] net: increase default NAPI_SKB_CACHE_BULK to 32 Date: Tue, 18 Nov 2025 15:06:44 +0800 Message-Id: <20251118070646.61344-3-kerneljasonxing@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20251118070646.61344-1-kerneljasonxing@gmail.com> References: <20251118070646.61344-1-kerneljasonxing@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jason Xing The previous value 16 is a bit conservative, so adjust it along with NAPI_SKB_CACHE_SIZE, which can minimize triggering memory allocation in napi_skb_cache_get*(). Suggested-by: Eric Dumazet Signed-off-by: Jason Xing --- net/core/skbuff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index e4abf0e56776..b6fe7ab85c4a 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -224,7 +224,7 @@ static void skb_under_panic(struct sk_buff *skb, unsigned int sz, void *addr) } #define NAPI_SKB_CACHE_SIZE 128 -#define NAPI_SKB_CACHE_BULK 16 +#define NAPI_SKB_CACHE_BULK 32 #define NAPI_SKB_CACHE_HALF (NAPI_SKB_CACHE_SIZE / 2) struct napi_alloc_cache { -- 2.41.3