From patchwork Sat Feb 22 18:30:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Cong Wang X-Patchwork-Id: 13986805 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D9DD335961; Sat, 22 Feb 2025 18:31:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740249068; cv=none; b=ASmRyn+gCFi+3WqWkW8WMVlAYUgMqolzni34VMlQJd4bFtHmLNasZKGnC1+Hpr5Ot3wvWLO9DockCW7PncNBR5OfdFh9pBDIKTIH4Wj8KsNtB+1PybMwhqM9hp8lXgKpJynhovfEyAsq356a/tui39sjrqHAF7w1d+ikQDWUQYE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740249068; c=relaxed/simple; bh=F370KETrMWzBfCAknccZHirCmbB67waMtTvyv7WFlGM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=ewZYfN21mFUdfx3U28LwabbCff5uSYAFqQOFn2rv76105+wO9reZz7f2opOWa3UWraE/M8TdyMDEEDCq63puQmtqMk5dHbBe4sH0X/NcNa4Hjlx1aAI3ZBwOHuhidd17GSUXpMposb2xP8O730Es8YbRbF6tRCLpv9CQ2uvb7Cw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=LaWgSSmr; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LaWgSSmr" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-221206dbd7eso64681675ad.2; Sat, 22 Feb 2025 10:31:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1740249066; x=1740853866; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=JO23ucqLx5sqqdPCYez77ZwthsWLwhAUyq51soFFXxk=; b=LaWgSSmrwRIh99Lby8ICka4GG9LFkdgkgz7x/gqHdPl6Pj8pkiMZFZxtA+vbHv+fEX Ws1SBxLEiUXvqd5/bXKnY5Ha31nqlXkG+cw6zfbJQ6tb5xuU+IkWeymOxAqf+uWSE8Dv X+bLFq6GHa6U6o9nN83LRoh82rpQc/fpa36fpeUjyL11aVbD6GvBkF5xhTpTyAgTDIc4 zou47m09meZehfyETshMEv9UWuy4SNFvfgpqWLYwGVu66a03DUpXDCBh2bWUOVRzrCzg HmxXkoN6WdbUb9h2NQq5yl9EhkJQoXOoHeF02nQH0cenrPLDOOOkyzWaQZyC59D/RZXL 9AUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740249066; x=1740853866; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=JO23ucqLx5sqqdPCYez77ZwthsWLwhAUyq51soFFXxk=; b=LHJHfka02thcysTwN0eAn6EVizc9D8cAKfUpTzYtakDvQfSODlCaWr/qAnebZedBx1 0GuHPnqFLvRRuNIiMgtyGtp7LbHHEzJULufNTM33Mgfk+l7FYwzfM5mQFNJFc916zBk4 nEdcGVtCJbnjCLDxmj0ZMd0suh0P4JBGFu4N+jj6RYihBQdBl75tN76YnKKC4e7gMyZr M5ggZFrOr1jeYtPy4nDlfkqEMIREYsp6GJRmyBRzvCcw3RYGSqmN888se5dp+saAFreB EKmAF5ydfMT3b2wMa8lF5bB7LkfxPNGwLOGlNZvMW77i49GjIxJm+Gg8+7gHHVoEd0v+ RJCw== X-Gm-Message-State: AOJu0Yx9Z/vo8urq6Qg9AiKENlYpWoEXhaHwFIB9sFluYt9D7KEQf2oD tqDX8yiEtk5grV5Gqs+iXtWJ/PWeOqOCwM1gxj0AEc5E8wPUWaLd9NPwyQ== X-Gm-Gg: ASbGncseQ43dmH3groonh1ttSOnhQfnOQJ1RXkVk142bsx+QIXGBrAbH0JNZU9Gz2Ya 46w2aJoJj70nbHQw6zhow1kwk96QDhwFsxEGoXrdufLk4Xy+rZm5iSzWFMsHcTLBeqFURWfQSlv Jz1A88xqnb2M1SuIpQqiRQaOpfSHjqkR3qdtJNbeh6Kj1btOmRewZXN/2vVQBGv31/yC6eGOAJw gghhbZiUMmRnLiD1HI7Mo1skgrtackr23fDOZEeD3M5G9YlTXViRBUF/z980dYxrFqs4xPuSUTh qOnEgyTIT/5PDJZ0SPkZGRf7Op9cy9IeF+A2qvs1gslGzx07CaLV51o= X-Google-Smtp-Source: AGHT+IHhOYfix2yw/nhson6NU50l6sm551VjCRHt0U4RfUKlhoZbwPgbkLHcVLk4h/MRnKMVs0ZC3w== X-Received: by 2002:a05:6a00:4f8f:b0:730:9242:e68 with SMTP id d2e1a72fcca58-73426d96062mr10895518b3a.23.1740249065716; Sat, 22 Feb 2025 10:31:05 -0800 (PST) Received: from pop-os.hsd1.ca.comcast.net ([2601:647:6881:9060:2714:159c:631a:37c0]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-73250dd701bsm16442959b3a.131.2025.02.22.10.31.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 22 Feb 2025 10:31:05 -0800 (PST) From: Cong Wang To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, john.fastabend@gmail.com, jakub@cloudflare.com, zhoufeng.zf@bytedance.com, zijianzhang@bytedance.com, Cong Wang Subject: [Patch bpf-next 0/4] tcp_bpf: improve ingress redirection performance with message corking Date: Sat, 22 Feb 2025 10:30:53 -0800 Message-Id: <20250222183057.800800-1-xiyou.wangcong@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net This patchset improves skmsg ingress redirection performance by a) sophisticated batching with kworker; b) skmsg allocation caching with kmem cache. As a result, our patches significantly outperforms the vanilla kernel in terms of throughput for almost all packet sizes. The percentage improvement in throughput ranges from 3.13% to 160.92%, with smaller packets showing the highest improvements. For Latency, it induces slightly higher latency across most packet sizes compared to the vanilla, which is also expected since this is a natural side effect of batching. Please see the detailed benchmarks: +-------------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+ | Throughput | 64 | 128 | 256 | 512 | 1k | 4k | 16k | 32k | 64k | 128k | 256k | +-------------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+ | Vanilla | 0.17±0.02 | 0.36±0.01 | 0.72±0.02 | 1.37±0.05 | 2.60±0.12 | 8.24±0.44 | 22.38±2.02 | 25.49±1.28 | 43.07±1.36 | 66.87±4.14 | 73.70±7.15 | | Patched | 0.41±0.01 | 0.82±0.02 | 1.62±0.05 | 3.33±0.01 | 6.45±0.02 | 21.50±0.08 | 46.22±0.31 | 50.20±1.12 | 45.39±1.29 | 68.96±1.12 | 78.35±1.49 | | Percentage | 141.18% | 127.78% | 125.00% | 143.07% | 148.08% | 160.92% | 106.52% | 97.00% | 5.38% | 3.13% | 6.32% | +-------------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+ +-------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+ | Latency | 64 | 128 | 256 | 512 | 1k | 4k | 16k | 32k | 63k | +-------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+ | Vanilla | 5.80±4.02 | 5.83±3.61 | 5.86±4.10 | 5.91±4.19 | 5.98±4.14 | 6.61±4.47 | 8.60±2.59 | 10.96±5.50| 15.02±6.78| | Patched | 6.18±3.03 | 6.23±4.38 | 6.25±4.44 | 6.13±4.35 | 6.32±4.23 | 6.94±4.61 | 8.90±5.49 | 11.12±6.10| 14.88±6.55| | Percentage | 6.55% | 6.87% | 6.66% | 3.72% | 5.68% | 4.99% | 3.49% | 1.46% |-0.93% | +-------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+ --- Cong Wang (2): skmsg: rename sk_msg_alloc() to sk_msg_expand() skmsg: use bitfields for struct sk_psock Zijian Zhang (2): skmsg: implement slab allocator cache for sk_msg tcp_bpf: improve ingress redirection performance with message corking include/linux/skmsg.h | 48 +++++++--- net/core/skmsg.c | 173 ++++++++++++++++++++++++++++++++--- net/ipv4/tcp_bpf.c | 204 +++++++++++++++++++++++++++++++++++++++--- net/tls/tls_sw.c | 6 +- net/xfrm/espintcp.c | 2 +- 5 files changed, 394 insertions(+), 39 deletions(-)