From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793399479; b=sJu+pfI7HaenSoyRKl6zqVwapgk4MQuNRgfczkSiRHaQniIX6F6EcKCHcYaSuodgbKXS yjrE8UOp0pjdCaBk1hOCFSPFev3XQEiC6HGs2l1Rs7neMAu6Lvb+MFdFzS46NG3UloyzW OXTGdPFRIQ+9RNCFYeMbCRHjQsB3wtdK4EjN3A2Pl3p+q0l+rk6Hnbt9DWbteWg7do81w Z9N/VpU4OgO5wD7oFYQeaq5X+9FCf2PGXC/B6iBmaQdHLigCwzYQbOWjWKjmgKethEG3y yAa7mkyBnupUfBSdvdBmdSjCWy84hQ0+4gBH1GA4d2ZEwEw7HjF1Kctf19xk+zjN2lQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793399479; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=u4i08XfvjxZQq2WmcsQfove9xezxcApRnsZ13Qb1Yug=; b=5tJHT7JkPn9muuykTLK4qSPrHasfqZioYsrMnppj5RWbRvxow1i4u6kA29QVYLCxdXkZ uRQu4K6vbfhwzJMcxa6i1SMnaIJev8x3tyLI3nbKGYFM5PlMVQD9Cwm0lJ6OPNIRskxT9 aBYHMyvlFZjpO3NXnL/sptIy/HRc1lUBcCE6ItXCr9pYhxTLurh28weSqa+Ij0wZsTDzE DCGJaIkCLrIBEjFL1VfKyXDqJcB/gdLnXfgXK2ictKxmpMSeenqj37zcsttji+rqx1334 BhtzMZpzT7Y6QAJXp/BW7mquRvvvlQlLLGqBZf9iOx25K/bfKC2aRDoXx0/depD5ZkA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="UiV/8+Xb"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F531606A31A; Fri, 30 Oct 2026 22:31:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=UiV/8+Xb Received: by smtp.kernel.org (Postfix) with ESMTPSA id 013F21F000C1; Fri, 30 Oct 2026 22:31:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793399479; bh=u4i08XfvjxZQq2WmcsQfove9xezxcApRnsZ13Qb1Yug=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=UiV/8+Xbv7p5vT/2rYxF8yVt931uVfP6+H31IPpPgC/qb3i1plcoJu3zKxr7/kvja Ndu66o46Epb0UM4ILJIeHwraRT+n4Nj8KozXCWToAXYGXR6GfKsZEvd1z6OOfsCUZK 9/gnE2jMgN+zGRVPtV7TFtSsZ+vMtogS4yFBQbfA1T/La5wb89LWySWec3JvHLpU7Q 0gpKMvn97pf2VRGVqk89JuvX/8VU2EtBbCBr8wqZyha7a3FcWsdmyM6wSn5+HlVN6x zDT9jEYDSk4SKg9tJL29Sr4jPR8eG0ey1zYdmH8C5NAnv8zLHjmrQCHJ+DYvdhFMDM l2cIA7V2Sm3GA== Date: Fri, 30 Oct 2026 15:31:18 -0700 From: Jakub Kicinski To: Shubhang Cc: Paolo Abeni , Toke =?UTF-8?B?SMO4aWxhbmQtSsO4cmdl?= =?UTF-8?B?bnNlbg==?= , Jamal Hadi Salim , Jiri Pirko , "David S. Miller" , Eric Dumazet , Simon Horman , Jonas =?UTF-8?B?S8O2cHBlbGVy?= , Shubhang Kaushik , "Christoph Lameter (Ampere)" , Toke =?UTF-8?B?SMO4aWxhbmQtSsO4cmdlbnNlbg==?= , cake@lists.bufferbloat.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] net/sched: sch_cake: skip redundant cake_mq rate updates Message-ID: <20261030153118.1d9f255b@kernel.org> In-Reply-To: References: <20261026-net_sched_sch_cake-v2-1-cb1d4e6ed990@gentwo.org> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 29 Oct 2026 14:45:19 -0700 (PDT) Shubhang wrote: > I repeated the test with whole-host CPU accounting on this 80-core system > and could not measure a reliable aggregate CPU-use difference; throughput > was unchanged. The benefit is visible in focused cake_configure_rates() > trace, but I agree this is more appropriate for net-next. In which case you'll need to repost once https://netdev.bots.linux.dev/net-next.html says net-next is open. Make sure to remove the Fixes tag.