Re: [PATCH v2 net-next 0/3] net: lockless skb_attempt_defer_free()
From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-09-30 14:00:17
From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-09-30 14:00:17
Hello: This series was applied to netdev/net-next.git (main) by Paolo Abeni [off-list ref]: On Sun, 28 Sep 2025 08:49:31 +0000 you wrote:
Platforms with many cpus and relatively slow inter connect show a significant spinlock contention in skb_attempt_defer_free(). This series refactors this infrastructure to be NUMA aware, and lockless. Tested on various platforms, including AMD Zen 2/3/4 and Intel Granite Rapids, showing significant cost reductions under network stress (more than 20 Mpps). [...]
Here is the summary with links:
- [v2,net-next,1/3] net: make softnet_data.defer_count an atomic
https://git.kernel.org/netdev/net-next/c/9c94ae6bb0b2
- [v2,net-next,2/3] net: use llist for sd->defer_list
https://git.kernel.org/netdev/net-next/c/844c9db7f7f5
- [v2,net-next,3/3] net: add NUMA awareness to skb_attempt_defer_free()
https://git.kernel.org/netdev/net-next/c/5628f3fe3b16
You are awesome, thank you!
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