From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6C86644BCB8; Tue, 16 Jun 2026 15:23:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781623386; cv=none; b=rjfm1wYShytlF3Ot+symI+yNIUMwIAPH1eeV+eEXids9Z5dgKTCYpJMgXjfGbhtXUT677QdDY7Dg3BeyVSPQoLQXrGsewB/eRdgJrB2I+KlTKOacvSS0RYdqoLaLEYHpucCk8y4lpqtMeuSxaTjLmYM2grCtrqa46GbJ+vj5omM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781623386; c=relaxed/simple; bh=epA1r6GiMx7JHmbS/clLse1iSFl+j4KCb4HpFi3L6Tw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=M+W5lrWOeFPWegDicb3641EhAAbZA29P7zFGbZrXqWcAWErOb0mjPnhH1Inz9Eq62+30cwQZ54/3pG/IhjrZxwCuCFRe7Rv4JQKksTHuvTdRM0a1khTo0Ax4IMHpjWe/esU6Ud8tqBhcPtRGIxr1Sfq5X5Nabg6IJJINQYAqhfo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k4kMTGuD; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="k4kMTGuD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E21B1F00A3A; Tue, 16 Jun 2026 15:23:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781623385; bh=hv3h9P487Z/2V1mgo4zQS3Oy7NlqKKmp31AJLcXoCVc=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=k4kMTGuDMCmD6OS9LfuXYbkRWW31lLBNhI6ik+zHXuJot7rwzAwrbAGDBim2ZvwtB fGfPhqSLO4L/iLhILtd69p8v+zRV3cVKl7VBDxpT8D+OTLkJLU75kHEn7tRCSRXZf5 oxCarQDMtggvI+p2Du6GihVTitESMoFa3CN5SYLq0wTssC0nnyD3QhyZy7epPEmgJD jTM6dJ8DeKZTeDE+3FrxoelU+UgEmctdA/tDp/3y/SFHL1EofQQ+/QKepzKY+L0S8p gS7B9r35GKdbCyfNNARm2N6SAdp6UE1wFDK4AHzXEW6RUDWuHiwHohMoV62V8/+43x 99FWIDTvJCEZg== Date: Tue, 16 Jun 2026 08:23:02 -0700 From: Jakub Kicinski To: "Chia-Yu Chang (Nokia)" Cc: "edumazet@google.com" , "ncardwell@google.com" , "jolsa@kernel.org" , "yonghong.song@linux.dev" , "song@kernel.org" , "linux-kselftest@vger.kernel.org" , "memxor@gmail.com" , "shuah@kernel.org" , "martin.lau@linux.dev" , "ast@kernel.org" , "daniel@iogearbox.net" , "andrii@kernel.org" , "eddyz87@gmail.com" , "horms@kernel.org" , "dsahern@kernel.org" , "bpf@vger.kernel.org" , "netdev@vger.kernel.org" , "pabeni@redhat.com" , "jhs@mojatatu.com" , "stephen@networkplumber.org" , "davem@davemloft.net" , "andrew+netdev@lunn.ch" , "donald.hunter@gmail.com" , "kuniyu@google.com" , "ij@kernel.org" , "Koen De Schepper (Nokia)" , "g.white@cablelabs.com" , "ingemar.s.johansson@ericsson.com" , "mirja.kuehlewind@ericsson.com" , "cheshire@apple.com" , "rs.ietf@gmx.at" , "Jason_Livingood@comcast.com" , "vidhi_goel@apple.com" Subject: Re: [PATCH v2 net-next 1/1] tcp: Replace min_tso_segs() with tso_segs() CC callback for TCP Prague Message-ID: <20260616082302.3618bd90@kernel.org> In-Reply-To: References: <20260614071756.239686-1-chia-yu.chang@nokia-bell-labs.com> <20260615185102.5e8de52d@kernel.org> <20260615191704.31be22da@kernel.org> Precedence: bulk X-Mailing-List: bpf@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 Tue, 16 Jun 2026 12:23:11 +0000 Chia-Yu Chang (Nokia) wrote: > > On Mon, 15 Jun 2026 18:51:02 -0700 Jakub Kicinski wrote: > > > On Sun, 14 Jun 2026 09:17:56 +0200 chia-yu.chang@nokia-bell-labs.com > > > Eric, Neal, looks good? > > > > > > The min rtt thing in tcp_tso_autosize() helps a bit but if the sender > > > gets congested for a longer stretch min_rtts on new connections are > > > high and we're back to sending small TSO, keeping the sender overloaded. > > > Which is to say - I _hope_ this also solves some of Meta's problems :) > > > > Ugh, I didn't see the Sashiko report, it's only CCed to the author and bpf@, not to netdev :/ > > > > The zero-check sounds legit. Let's revisit this after the merge window. > > Thanks for the comment, I will take action after the merge window. > > And, please correct me if I am wrong, the next eligible submission is expected from 30-June, right? It usually opens Monday morning (PST) so Jun 29th