From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2C01C433E0 for ; Fri, 17 Jul 2020 14:05:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 700C0207EA for ; Fri, 17 Jul 2020 14:05:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594994759; bh=9EQT3hOMbnuZ/8hseTErt+8ql3auDUgbS6ChJ0lzLu0=; h=From:To:Cc:Subject:Date:List-ID:From; b=RsqZVabdH+rCGu9uWTYOBknWtTHzdKfr+yH/6fp6BC81wl+oJ8Yi6qQEEgDve6b3I nq4DdWQWEY3KuP3ulFjMa9CGtkYkihybRwBRKI8wizO87tDuzmdF5S00eR0YW83pd9 XWstL/MhLkVUbag4rkIVrlHTzOzlcKbbkYU2Qxto= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726564AbgGQOF6 (ORCPT ); Fri, 17 Jul 2020 10:05:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:54002 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726335AbgGQOF6 (ORCPT ); Fri, 17 Jul 2020 10:05:58 -0400 Received: from lenoir.home (lfbn-ncy-1-317-216.w83-196.abo.wanadoo.fr [83.196.152.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 21EE12067D; Fri, 17 Jul 2020 14:05:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594994757; bh=9EQT3hOMbnuZ/8hseTErt+8ql3auDUgbS6ChJ0lzLu0=; h=From:To:Cc:Subject:Date:From; b=QAx7A6MvKEOlBOdft6TV3hf8TxrZZf33CmFOHdqI+Hi+Q1fzwVKuChTniUe/f6nOZ /JeLh/9HzVy5TwU/5tl6sGV64l1z4sIc9g/Hm2NEH6LZLhzMnzq30eRu0/MSyLHHuK 0KNSeIzlwhCxxm6peOzunsdQCRL9NXDogUvNTbss= From: Frederic Weisbecker To: Thomas Gleixner , Anna-Maria Behnsen Cc: LKML , Frederic Weisbecker , Peter Zijlstra , Juri Lelli Subject: [PATCH 00/11] timer: Reduce timers softirq v3 Date: Fri, 17 Jul 2020 16:05:39 +0200 Message-Id: <20200717140551.29076-1-frederic@kernel.org> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This set piggybacks the 3 patches that have been posted seperately along the reviews. Changes since v2: 1) Add "timer: Fix wheel index calculation on last level" This one targets timers/urgent 2) Add "timer: Preserve higher bits of expiration on index calculation" "timer: Move trigger_dyntick_cpu() to enqueue_timer()" 3) Rebase the series against the whole 4) Fix comments in "timer: Move trigger_dyntick_cpu() to enqueue_timer()" as per Anna Maria's suggestion 5) Fix comments in "timer: Add comments about calc_index() ceiling work" as per Thomas' suggestion Please pull the timers/softirq-v3 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/softirq-v3 HEAD: f176eb2a146b422f78d81ec63273487c33b3011d Thanks, Frederic --- Frederic Weisbecker (11): timer: Fix wheel index calculation on last level timer: Preserve higher bits of expiration on index calculation timer: Move trigger_dyntick_cpu() to enqueue_timer() timer: Add comments about calc_index() ceiling work timer: Optimize _next_timer_interrupt() level iteration timers: Always keep track of next expiry timer: Reuse next expiry cache after nohz exit timer: Expand clk forward logic beyond nohz timer: Spare timer softirq until next expiry timer: Remove must_forward_clk timer: Lower base clock forwarding threshold Anna-Maria Behnsen (1): timers: Use only bucket expiry for base->next_expiry value kernel/time/timer.c | 236 ++++++++++++++++++++-------------------------------- 1 file changed, 92 insertions(+), 144 deletions(-)