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=1794416461; b=l00RaEBpUUgMlapS4p9du9fvaQQCtR1UOm3ZTCu6rM41OzbQVK2tfKyjVlQCuaqz4N+4 ma2tjhxEff8GRJlGOwadFaSVBG1ftbQTW5KXRiHRcfUEKbLDt+QX6094N5Z2fARry1Q7J T3NZxu4AfX4ClAiPZZFiXw8Ud5V6BUwKGM+i6nVFnF38fQYCPS3OHcfzKMzv+W4SZFVAy MUCouw9UbJc78T5Ns82TXrPpl/9aM16EXrLwfn4xXywpRJzs0IFyxc58YGK9qU1jUNMMe 89Dc/k0eJiwOUDB/URQnKyqBsgqiz9J24TcA5cx1SX1LG9iOk+2Qp7FZowSeQ3VOWhA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794416461; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition: Content-Transfer-Encoding:In-Reply-To; bh=PPAtSBIyb7Mc4z7TThL4xmlJYMwdUa2O9DNxDimc1oY=; b=xwQTmtG19Rn1FMLQ3Pm5Z0mMMLlZREez6cjeK2OIA1gwOvM07lgPD1B37E8v658ngX98 dJAyIn48n0pehtnuAo2ay8SHFGq4Wd63Sg9dWZ5qZiW4JYDuRSCzKMg4JxgaIgo1q1JV4 Ldpmq/lHnhI3ECo5QSUaGPtChGwbPF2hgl6ywsvtzrezXmJSuBSTSmjXg5FK02apxRpDw Z3hDXXp2I41F5zndZh74ruJBL5f94eIICyatQ6TDU1VpP6uhkZ90hQkvEBBoKkM3ohNEc SJJSA+A/qp58x7p6xky83EzDO/rmravkwvyoWsRZ32jfUY/4QoGj/Ay+xpP44XZ2Nng== 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=KAc11aE9; 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 76239606A31C for ; Wed, 11 Nov 2026 17:01:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=KAc11aE9 Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2D511F00A05; Wed, 11 Nov 2026 17:01:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794416461; bh=PPAtSBIyb7Mc4z7TThL4xmlJYMwdUa2O9DNxDimc1oY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=KAc11aE9RtMHFKRldONd7qnLSpOj6Gf0Lc/I4PrbhnoFFp6cqPrIhMKgc9uemS94R /8rczeWU+x1mUfxq/kqfKh3ewi87f7VupeHfdlHVDfF491yCLnJ1piS0lwgi2igJ5Q G8k5wU+jWiUBXEN6bzHfl+joUz32Fsa9T7q9KMfN2mk6yCZ3X2mZrMJzgyV3coLjcV q2O55UIzYNPPXNWcAALTDFJDzaRTw8NTxLXGtwBmY7CGgD4emsQkedNF9QM1NrbzHU KURIAAg081TzqB6B/vmFeaFi+qckP0XiXQ2chbwFr+UjtdYJIa9NKKFURS2e4wSogH MeV0hshJmYofA== Date: Wed, 11 Nov 2026 18:00:58 +0100 From: Frederic Weisbecker To: Marco Crivellari Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Michal Hocko , Aaron Tomlin , Marcelo Tosatti , Anna-Maria Behnsen , Thomas Gleixner , Jonathan Corbet , Shuah Khan , Randy Dunlap Subject: Re: [PATCH v2 4/4] Documentation: no_hz: Add tick stop in polling idle Message-ID: References: <20261111114406.346953-1-marco.crivellari@suse.com> <20261111114406.346953-5-marco.crivellari@suse.com> X-Mailing-List: linux-kernel@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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20261111114406.346953-5-marco.crivellari@suse.com> Le Wed, Nov 11, 2026 at 12:43:50PM +0100, Marco Crivellari a écrit : > On nohz_full CPUs the scheduling-clock tick is stopped while polling. > Update the documentation accordingly. > > Cc: Anna-Maria Behnsen > Cc: Thomas Gleixner > Cc: Jonathan Corbet > Cc: Shuah Khan > Cc: Randy Dunlap > Signed-off-by: Marco Crivellari > --- > Documentation/timers/no_hz.rst | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/timers/no_hz.rst b/Documentation/timers/no_hz.rst > index 4006cab64079..86cea04d2a49 100644 > --- a/Documentation/timers/no_hz.rst > +++ b/Documentation/timers/no_hz.rst > @@ -246,6 +246,8 @@ Known Issues > be even worse than that of dyntick-idle. Furthermore, > this parameter effectively disables Turbo Mode on Intel > CPUs, which can significantly reduce maximum performance. > + Note also that on nohz_full CPUs the scheduling-clock tick > + is stopped while polling, as in the other idle states. Reviewed-by: Frederic Weisbecker -- Frederic Weisbecker SUSE Labs