From patchwork Mon Jul 31 18:49:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 708657 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47631C04E69 for ; Mon, 31 Jul 2023 19:05:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231172AbjGaTE7 (ORCPT ); Mon, 31 Jul 2023 15:04:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230049AbjGaTE5 (ORCPT ); Mon, 31 Jul 2023 15:04:57 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A42A1711; Mon, 31 Jul 2023 12:04:56 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.2.0) id 1e1f3776e05a7fc3; Mon, 31 Jul 2023 21:04:54 +0200 Authentication-Results: v370.home.net.pl; spf=softfail (domain owner discourages use of this host) smtp.mailfrom=rjwysocki.net (client-ip=195.136.19.94; helo=[195.136.19.94]; envelope-from=rjw@rjwysocki.net; receiver=) Received: from kreacher.localnet (unknown [195.136.19.94]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id 6B8216620E2; Mon, 31 Jul 2023 21:04:54 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PM Cc: LKML , Peter Zijlstra , Anna-Maria Behnsen , Frederic Weisbecker , Kajetan Puchalski Subject: [PATCH v3 0/3] cpuidle: teo: Avoid stopping scheduler tick too often Date: Mon, 31 Jul 2023 20:49:33 +0200 Message-ID: <4515817.LvFx2qVVIh@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedviedrjeeggddutdekucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepgeffhfdujeelhfdtgeffkeetudfhtefhhfeiteethfekvefgvdfgfeeikeeigfehnecuffhomhgrihhnpehkvghrnhgvlhdrohhrghenucfkphepudelhedrudefiedrudelrdelgeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduleehrddufeeirdduledrleegpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopeeipdhrtghpthhtoheplhhinhhugidqphhmsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepphgvthgvrhiisehinhhfrhgruggvrggurdhorhhgpdhrtghpthhtoheprghnnhgrqdhmrghrihgrsehlihhnuhhtrhho nhhigidruggvpdhrtghpthhtohepfhhrvgguvghrihgtsehkvghrnhgvlhdrohhrghdprhgtphhtthhopehkrghjvghtrghnrdhpuhgthhgrlhhskhhisegrrhhmrdgtohhm X-DCC--Metrics: v370.home.net.pl 1024; Body=6 Fuz1=6 Fuz2=6 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Hi Folks, Patch [1/3] in this series is a v3 of this patch posted last week: https://lore.kernel.org/linux-pm/4506480.LvFx2qVVIh@kreacher/ Patch [2/3] (this is the second version of it) addresses some bail out paths in teo_select() in which the scheduler tick may be stopped unnecessarily too. Patch [3/3] replaces a structure field with a local variable (while at it) and it is the same as its previous version. According to this message: https://lore.kernel.org/linux-pm/CAJZ5v0jJxHj65r2HXBTd3wfbZtsg=_StzwO1kA5STDnaPe_dWA@mail.gmail.com/ this series significantly reduces the number of cases in which the governor requests stopping the tick when the selected idle state is shallow, which is incorrect. Thanks!