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 DF64D10953 for ; Wed, 21 Feb 2024 22:57:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708556256; cv=none; b=n93YwLvGyZFTyJmg2xmSopS3mbLRGDHayTll6ReUtm8mdD8FNRlC/st9I85UFUxJBnBMXkwjtFnzyLRsVgKm6wePMTjCTkwTMPcYWneGwMxkw0BDV8kPMZ1k913GHCaKd/nHZoYvG0neufZyZMxrrKrEnF7U7altYla9DuRNECc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708556256; c=relaxed/simple; bh=X1FkUIvCLYMNMFXbH86xBrQrJDNMfIXGTIyj0dRSxcI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dhpoVVHS5tzLkmgEOm0+0V/htC06TzEVAdwCChxVHZ5HB3EAdgLxj+MRDMRvyCSoPk+ICPjYfhmRbyse9I+5ka5265f36MkaIAXfl3iC+BHHCpUmYxgNe7NCMSEBdFNWtoTSGg5jWDF21aufZPpzpi2fupUyBPVsP2a3LbNq+NM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ir6RjjpD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ir6RjjpD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00E94C433C7; Wed, 21 Feb 2024 22:57:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708556255; bh=X1FkUIvCLYMNMFXbH86xBrQrJDNMfIXGTIyj0dRSxcI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ir6RjjpDqUuV4/VQ7Ow8wy2J0F7m/y3DxAfWz97qgMGKYr7CcroNshA0DjLJLBGbb I+Uwi4RewSWhWR6ml7cbqRaNG0yXcdkBEAeiCm77qlIDptBV39wbzDXkJfu26Qwyvh FqYDuE/HwXWzY5E8xp4OehjPRknBByNen6cohhE9CAPXKGwg7/XLi9938v+I52Jb+L 79dq1+6Oo2ibdk7bTPb119K5VMqsABKcoNefH2ojE9PXFO4+DGV3fLecaliqQ34KtD OZ+FrgdOwPCKLMeOV8hJPl4RXmd8flxn2uUDpIiAM6A7CKp5AhjkE2CwU10TBPz5ZX BPxVVqvV39lWQ== Date: Wed, 21 Feb 2024 23:57:32 +0100 From: Frederic Weisbecker To: Anna-Maria Behnsen Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , John Stultz , Thomas Gleixner , Eric Dumazet , "Rafael J . Wysocki" , Arjan van de Ven , "Paul E . McKenney" , Rik van Riel , Steven Rostedt , Sebastian Siewior , Giovanni Gherdovich , Lukasz Luba , "Gautham R . Shenoy" , Srinivas Pandruvada , K Prateek Nayak , Christian Loehle , Richard Cochran Subject: Re: [PATCH v11 20/20] timers: Always queue timers on the local CPU Message-ID: References: <20240221090548.36600-1-anna-maria@linutronix.de> <20240221090548.36600-21-anna-maria@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240221090548.36600-21-anna-maria@linutronix.de> Le Wed, Feb 21, 2024 at 10:05:48AM +0100, Anna-Maria Behnsen a écrit : > The timer pull model is in place so we can remove the heuristics which try > to guess the best target CPU at enqueue/modification time. > > All non pinned timers are queued on the local CPU in the separate storage > and eventually pulled at expiry time to a remote CPU. > > Originally-by: Richard Cochran (linutronix GmbH) > Signed-off-by: Anna-Maria Behnsen Reviewed-by: Frederic Weisbecker