From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5804E566A for ; Tue, 14 May 2024 00:48:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715647724; cv=none; b=p5ObBfAVNuIOsPSHj+BZYfkINrNOLweCbhISib0R6v03lB0c7uosJd0w/10NqrbXdR8cy3/6CFM7k7s0CUsmdDhOtevLgIkfKiHoUTn9Nd94Rx8UBMBn5vpLGwbMRWo/XxkpDG8/nmSdScQtzolL4RtDh5btO+EBo8Ammb/9Ixk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715647724; c=relaxed/simple; bh=V2U6nNw5L4fYANS0TQZ+9nWP7TxAweemvbCzywi7Tak=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Ow3JPDBJoEa+V6Bj/Z60xHMXlthF6IPcZylj9LFCRl8A0VAToEJcO8+MvbSDO8B+3bAL6RnnRZUUSXmHmpGJ64I3qEGWhozgUkXveYEWoDQOnN5kYgFbKeBlUo/terp2VO5F6TBem9ARGGAKs46cwNVsJ583pNUxKTvGJxBIjzc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G67QiM7R; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G67QiM7R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AD934C113CC; Tue, 14 May 2024 00:48:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715647723; bh=V2U6nNw5L4fYANS0TQZ+9nWP7TxAweemvbCzywi7Tak=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=G67QiM7ROJwq/QUXaNlqUrSZPUdDWg4z6qwSClaL64LitR2IzpFmDOIRclwBQxUzB OvUniW1FTxceDUM9cMpZ9BfHSxnsIsh+XeihLTIrcrbzcZgaJC3ALLy7BN4kNsK07L fU4/ZuvtdF+7LIuunpGGO9LFo7eeJig8JnQgQdT79y5+lxkbbjLbP2p89RYL3OWMez xYKGIXHBdImDYx+ptyfLkHd4AR9tpQkhtbSyQ1WixD3vLgxdOQ6bLcIdPZdMFmWt7m nRoJzE83aP0dvl5s7tg3hlE24f23L+Eo+qZ7IUNgt0ZxDJ1//xQiVT5qDVsAMChGaG C3CJSJtAqpeTA== Date: Mon, 13 May 2024 17:48:42 -0700 From: Jakub Kicinski To: zijianzhang@bytedance.com Cc: netdev@vger.kernel.org, edumazet@google.com, willemdebruijn.kernel@gmail.com, cong.wang@bytedance.com, xiaochun.lu@bytedance.com Subject: Re: [PATCH net-next v4 0/3] net: A lightweight zero-copy notification Message-ID: <20240513174842.2af7d7f3@kernel.org> In-Reply-To: <20240513211755.2751955-1-zijianzhang@bytedance.com> References: <20240513211755.2751955-1-zijianzhang@bytedance.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 13 May 2024 21:17:52 +0000 zijianzhang@bytedance.com wrote: > Original title is "net: socket sendmsg MSG_ZEROCOPY_UARG". > > Original notification mechanism needs poll + recvmmsg which is not > easy for applcations to accommodate. And, it also incurs unignorable > overhead including extra system calls and usage of socket optmem. Hi, as described in: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html we close the net-next tree for the duration of the merge window. We will not be applying any -next patches for the next 2 weeks. Feel free to continue posting new versions once you get feedback, but please switch to posting as RFC. -- pw-bot: defer