From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f52.google.com (mail-ed1-f52.google.com [209.85.208.52]) (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 4BC841553B1 for ; Thu, 16 May 2024 17:22:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715880151; cv=none; b=sw9SfnREqXDfJN78P9gIJQUIMXifIjSDgA3Fv0TCoEHusfyo/eXN84UeJiWm3h9Ztgv4MPcZ4oUTdg+9hVTC4uQ9ZkL+H66fCyRAdCVVTVnlvAn30BXBR1d/nLkMYJmBqefVwC+JnMRiTYBGBTib48XhybeNotfgs4vLzNZE/Sk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715880151; c=relaxed/simple; bh=HAUKL+JYIytkSwCm2DOlRIspWB4tp4heky9US31dOOQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=ROuK0KMjLljJCEn3GJo+ySJkF/lmmHh9HxdNPNEdBnfkht22UtEG1HxIOJY7sp1BdAH+HlxVLLtBlNC/LtcGUSODph62pv2fDYaqeHJ8qx9p/TlA2t9TaGp34bywOTQng4wbtZ6tWPuCZE4dRL7P66MZ+9t9R/lAL/20YT9ksyo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com; spf=pass smtp.mailfrom=cloudflare.com; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b=Bz5QkxYL; arc=none smtp.client-ip=209.85.208.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="Bz5QkxYL" Received: by mail-ed1-f52.google.com with SMTP id 4fb4d7f45d1cf-56e69a51a33so3333753a12.1 for ; Thu, 16 May 2024 10:22:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google09082023; t=1715880149; x=1716484949; darn=vger.kernel.org; h=mime-version:message-id:date:user-agent:references:in-reply-to :subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to; bh=HAUKL+JYIytkSwCm2DOlRIspWB4tp4heky9US31dOOQ=; b=Bz5QkxYL53tx33bPsa3sO3lEJ15SbCQ5Rb4zORV1aSsSf/xaIxPZgv/1L8K9oGb4eQ q0zT1P07Raw9XSyjYIyknK7qc2iy0wG0xan8310a+kzk6MH1qT9VC8GjAIpimCR3z8dm QJrr9nfXjNYYiq3pS+27bAiP0ObzRcpBkn3w4ustekgh/03gElMMvEgHoUqZQD3aRlY5 2HBHK7B46FafJUIS08cRxj3TV8H2X970OfCKAHRMUzSSHRG/q5JAqWDVl9K7twcQW7Nv BJDDpSFpoRESkXmfVWdqdodgG7fSPqC6Rz7NokAQ6lGUBDLsLUgmw7gfynG8kEMKE5ol skkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715880149; x=1716484949; h=mime-version:message-id:date:user-agent:references:in-reply-to :subject:cc:to:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=HAUKL+JYIytkSwCm2DOlRIspWB4tp4heky9US31dOOQ=; b=pCvjEMEyoz1Pjlg6aRnTUX4PL5Acesejr5Uv0sHCvTOtVZxeonoPeotdMarhklKSAJ gPJg4QokOPLCag8Hyn2Apjm2JPIA45YwWyhtlyS484h+Lpnz4q47ZAK6fxL5ZnWUYi+a BUJVLHucd4wK8X/TAi1sX1hoS4TaAz+JX/tuKtKqr9h2HoA1NmYHRztlcT004RQxRQCt gEoypHlBwY45Fv7bcpLKFLhuLi+sT+57obO4S2NjLWpfZabiBa7N4/nTQjrb3/O/SbgV QpjKrZrLxLKwR8qBK+LE0loG+WsZlVzOg8j+IZh76y15SUn3zUERdZv4PHignSJ5i2Av 50QQ== X-Forwarded-Encrypted: i=1; AJvYcCWsZIarhXudQBzrZuxN3LzWMlRn3VAy4s1/ArPTJYpWkUHbaRO1JQ/Svu+2CrDH8g3++gHVbkgKgoTh1HMQX9qtt0GeEZbq X-Gm-Message-State: AOJu0YzSg5NOfQvF9PjjqZpQIL5MKEq0tBDOPySJuwAqqNprXYeteUmF wR9duYOwv+wHVk4Fc+bQBDWB2H8cszBA2Gn+cf+Vs8c2DizHhSmlrjkfu05nmns= X-Google-Smtp-Source: AGHT+IGyNgJXE1gh6QOSwbJEe8jOI9clq2LTrHyN9zq+JVSQiF4/sHiwyNAsZaIQmazyzrAjWKqNQg== X-Received: by 2002:aa7:d1d3:0:b0:574:eb26:74a with SMTP id 4fb4d7f45d1cf-574eb260839mr5431923a12.21.1715880148676; Thu, 16 May 2024 10:22:28 -0700 (PDT) Received: from cloudflare.com ([2a09:bac5:5063:2387::38a:41]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-574ea09b972sm3742247a12.47.2024.05.16.10.22.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 May 2024 10:22:28 -0700 (PDT) From: Jakub Sitnicki To: Feng Zhou Cc: edumazet@google.com, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, davem@davemloft.net, dsahern@kernel.org, kuba@kernel.org, pabeni@redhat.com, laoar.shao@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, yangzhenze@bytedance.com, wangdongdong.6@bytedance.com Subject: Re: [PATCH bpf-next] bpf: tcp: Improve bpf write tcp opt performance In-Reply-To: <87wmnty8yd.fsf@cloudflare.com> (Jakub Sitnicki's message of "Thu, 16 May 2024 19:15:22 +0200") References: <20240515081901.91058-1-zhoufeng.zf@bytedance.com> <87seyjwgme.fsf@cloudflare.com> <1803b7c0-bc56-46d6-835f-f3802b8b7e00@bytedance.com> <87wmnty8yd.fsf@cloudflare.com> User-Agent: mu4e 1.12.4; emacs 29.1 Date: Thu, 16 May 2024 19:22:27 +0200 Message-ID: <87seyhy8mk.fsf@cloudflare.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Thu, May 16, 2024 at 07:15 PM +02, Jakub Sitnicki wrote: > So in your workload bpf_skops_hdr_opt_len more times that you like. Oops, I can't type any more at this hour. That should have said: ... bpf_skops_hdr_opt_len *gets called* more times ...