From patchwork Wed Aug 2 13:24:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Zijlstra X-Patchwork-Id: 709473 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 D909EC04E69 for ; Wed, 2 Aug 2023 13:31:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233821AbjHBNbe (ORCPT ); Wed, 2 Aug 2023 09:31:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233157AbjHBNbc (ORCPT ); Wed, 2 Aug 2023 09:31:32 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5367A2698; Wed, 2 Aug 2023 06:31:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=4ekzffwWOrCQRRoneCHj9V2gYOG1Rq+IXsS8zLIVtUs=; b=BWc65wUx7yvN1dx0XTneR950/m vugxcciydA/+PN3ekG2kWF2cT1IxPzAm0ilW3E0H9UN9ZaE0Hw9tdeack1bERP3lC7Xh5QFdXZ7Rq BW4g5Qcf/IZ1ksHFKnG2YXklUh0pCllcWv7rWdpLRFOdeOav2cbj09ew0B1/bkpkIe0l7Ko4KGBNY yb/i1iodBRBc+gHXCqtjSN3zfoyQnovgwBoDhnG26dabdguvVb+AY5ICu2/JQHouhXb+CGQsTeGyI gE3aOlCi5imC8yE/7ImLdiyZPuJ7BZTl/3YmCQYhXiWUitOA4D/fTSgvDfhwQYZtjLH+upjNPIFPh v7WUo5mQ==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qRBwZ-00FxfB-1x; Wed, 02 Aug 2023 13:31:16 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 0D56530007E; Wed, 2 Aug 2023 15:31:15 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id E88022107D7E4; Wed, 2 Aug 2023 15:31:14 +0200 (CEST) Message-ID: <20230802132431.254614419@infradead.org> User-Agent: quilt/0.66 Date: Wed, 02 Aug 2023 15:24:31 +0200 From: Peter Zijlstra To: anna-maria@linutronix.de, rafael@kernel.org, tglx@linutronix.de, frederic@kernel.org, gautham.shenoy@amd.com Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, daniel.lezcano@linaro.org, linux-pm@vger.kernel.org, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, kajetan.puchalski@arm.com Subject: [RFC][PATCH v2 0/5] cpuidle,teo: Improve TEO vs NOHZ Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Patches attempting to solve the TEO tick/nohz vs timer-pull issue. Very lightly tested.. Since last time: - 'split' tick_nohz_get_sleep_length() - replaced the tick heuristic