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 B7E6813AC0 for ; Thu, 7 Sep 2023 17:09:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D62B6C433AB; Thu, 7 Sep 2023 17:09:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694106573; bh=sDlwvUjTGCoXbRBzHl54v5TrXLHp5jTS3+4M5/2djHg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=fp7FkNHcbJr2lZK3+58D03pf1aMVjzvsy9up5Ocy0GZRoO9w/xt7FeAVcQXBX3AG8 uwGZsB5bNOE39B0AhxAqkc2t/JQ2xdxt2413oaH7L+JPUYkREa/Yb43+mOpAzC63FF 6UN8WyqZRVB4UCNIFWhIkFEuHDtQ00eUzgVOx6sguBhQAWk1t4BCABQYtt4gZtxWJp Zjk3XGGQFC9MRRNhaBwXyB7tDPjul98AQJJrVmYYXbO0XUgcWEbyTx/pSwf+oV6Cts Kx3CdgXWKyeohhISQF4suuV+e41PPyTmXmwzElz83SolSIEz3k1Aj1gI6cJAwHIET/ z5wnW/oz79j5A== Date: Thu, 7 Sep 2023 10:09:32 -0700 From: Jakub Kicinski To: Eric Dumazet Cc: "David S . Miller" , Paolo Abeni , netdev@vger.kernel.org, eric.dumazet@gmail.com, Soheil Hassas Yeganeh , Neal Cardwell , Yuchung Cheng Subject: Re: [RFC net-next 4/4] tcp: defer regular ACK while processing socket backlog Message-ID: <20230907100932.58daf8e5@kernel.org> In-Reply-To: <20230906201046.463236-5-edumazet@google.com> References: <20230906201046.463236-1-edumazet@google.com> <20230906201046.463236-5-edumazet@google.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 Wed, 6 Sep 2023 20:10:46 +0000 Eric Dumazet wrote: > This idea came after a particular workload requested > the quickack attribute set on routes, and a performance > drop was noticed for large bulk transfers. Is it okay if I asked why quickack? Is it related to delay-based CC?