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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 468D2C7EE26 for ; Mon, 22 May 2023 14:42:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233966AbjEVOmA (ORCPT ); Mon, 22 May 2023 10:42:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229761AbjEVOl7 (ORCPT ); Mon, 22 May 2023 10:41:59 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id EC6B5B0; Mon, 22 May 2023 07:41:53 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 742BD11FB; Mon, 22 May 2023 07:42:38 -0700 (PDT) Received: from [10.57.22.146] (unknown [10.57.22.146]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6A6163F67D; Mon, 22 May 2023 07:41:50 -0700 (PDT) Message-ID: Date: Mon, 22 May 2023 15:41:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v2 0/3] Add basic tracing for uclamp and schedutil Content-Language: en-US To: "Rafael J. Wysocki" Cc: rostedt@goodmis.org, mhiramat@kernel.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, delyank@fb.com, qyousef@google.com, qyousef@layalina.io, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Linux PM References: <20230509122246.1702397-1-lukasz.luba@arm.com> <88fcd266-301a-f6e1-cf1c-69c20e74ef35@arm.com> From: Lukasz Luba In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/22/23 15:40, Rafael J. Wysocki wrote: > Hi Lukasz, > > On Mon, May 22, 2023 at 3:38 PM Lukasz Luba wrote: >> >> Hi Rafael, >> >> >> >> On 5/9/23 13:22, Lukasz Luba wrote: >>> Hi all, >>> >>> The task scheduler feature: Uclamp, begins to take off. To better understand >>> the dynamics in the task scheduler and CPU frequency requests we need some >>> better tracing. >>> In schedutil (cpufreq governor) we allow to enter the scheduler >>> and make the frequency change. Although, there is some limit in regards to how >>> often this can happen. That min period is provided by the cpufreq driver. >>> Thus, some of the cpufreq requests might be filter out and the frequency won't >>> be changed (hopefuly will be set a bit later). We would like to know about >>> those situations, especially in context of the user-space hints made via >>> Uclamp for particular tasks. >>> This patch set aims to add base for our toolkits and post-processing trace >>> analyzes. >> >>> Changelog: >>> v2: >>> - solved the issue from CI build warning, dropped schedutil.h and re-used >>> the sched.h which is available in build_utility.c where cpufreq_schedutil.c >>> is included >>> - added tag for the last patch 3/3 for the CI robot helping hend >>> - re-based on top of v6.4-rc1 >>> v1: >>> - implementation can be found here [1] >>> >> >> I was going to gently ping you, while I've realized that you >> are not on CC list :( I don't know what happened, my apologies. > > No worries. > >> Shell I resend this patch set so you can have it in a proper way >> in your mailbox? > > Well, for schedutil you should also CC linux-pm (done now), so please resend it. > >> Could you have a look at this, please? > > I could, but if I'm to reply, it will be much more convenient for me > if it is there in my inbox. > Thanks Rafael for instant response. I'll resend it with the proper CC list this time.