From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from casper.infradead.org (casper.infradead.org [90.155.50.34])
	(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 7142D1917CD
	for <linux-kernel@vger.kernel.org>; Mon, 18 May 2026 07:40:09 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34
ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1779090011; cv=none; b=AknsfxtW0llzBI88MJ9H/RfmFN0Rp5iG8Q0L9z6rmqJF+N0l5vTN/hago6/qlB04H1lk33siZ7LP4iiS6Plf2pIAQdB6L3nQA8pH9NnXX4Jv5aCZ/xh/oWcFjMbbrH7kdLXI78BRSUF5zIyxA2rluoRHOyr0bVUpyNEdc7PzyPw=
ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1779090011; c=relaxed/simple;
	bh=inZIzbjM6m5TrnHjRYXDXa91h8iim4JptCQ0WXH0D3Y=;
	h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:
	 Content-Type:Content-Disposition:In-Reply-To; b=MFPEmJ1UJgTGOGho8J88rikn+MRiKFQ1uSX14q1/U+SLv59zOq/Lmwpb2LW/fKj5UgSKtdCZj6c4TTrasALeYCiURaoeNLAiCtEoXDEy6wRQ81I0VOTdGLu0qNs7Ef+8Ny7rQpsR6PsyAEj5kEm7Pl5WowmrrnRcc0pYj/KTPW4=
ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=iUqs5Dg3; arc=none smtp.client-ip=90.155.50.34
Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org
Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org
Authentication-Results: smtp.subspace.kernel.org;
	dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="iUqs5Dg3"
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version:
	References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:
	Content-Transfer-Encoding:Content-ID:Content-Description;
	bh=inZIzbjM6m5TrnHjRYXDXa91h8iim4JptCQ0WXH0D3Y=; b=iUqs5Dg3Cpe4T5+8mV1FdF4czV
	dI570oEESFxQ44vo6HtW9FCE16cZueHHSKITgK/IxNZ5ugGlP6xEOdYsRGqsFrtrliSHpq+PzaonW
	jORG5ym4B8Vdm8VEwYmqLgzIZTSGU3OZSzAokC/NxgdCR+Y2USf2+UNQYD/V45I/SHewvAGow82kF
	8PC32XnHT7VAndptjeE0JuwIsX7Aa9b8jAQ+s+545B7JB/dMdw6m0ZKFAFjzWjN++9eAziFnLrnwb
	esUx+yKNg89lOjOeiWqHCfaPACsqn1drA7g2O/R10lOJmUaLPT3m18Owox3OyIVTjRQXZpA5/fIGv
	RSx8hLvg==;
Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net)
	by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux))
	id 1wOsa0-00000004UAX-2ERl;
	Mon, 18 May 2026 07:40:00 +0000
Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000)
	id 10C0E300B40; Mon, 18 May 2026 09:40:00 +0200 (CEST)
Date: Mon, 18 May 2026 09:40:00 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Qais Yousef <qyousef@layalina.io>
Cc: Ingo Molnar <mingo@kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	John Stultz <jstultz@google.com>, Thomas Gleixner <tglx@kernel.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] sched/tick: Decouple sched_tick() from HZ
Message-ID: <20260518074000.GR3102624@noisy.programming.kicks-ass.net>
References: <20260517040740.444729-1-qyousef@layalina.io>
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20260517040740.444729-1-qyousef@layalina.io>

On Sun, May 17, 2026 at 05:07:37AM +0100, Qais Yousef wrote:
> With HRTICK now is default on,

.. for archs that use GENERIC_ENTRY. So for example, ARM64 doesn't (yet)
have this.