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[23.128.96.36]) by mx.google.com with ESMTPS id jn20-20020a170903051400b001bf0b29d935si10641963plb.34.2023.10.16.09.56.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Oct 2023 09:56:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) client-ip=23.128.96.36; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=VnvWKzb8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id 9B86C805DEC6; Mon, 16 Oct 2023 09:56:44 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234181AbjJPQ4f (ORCPT + 99 others); Mon, 16 Oct 2023 12:56:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234346AbjJPQ4T (ORCPT ); Mon, 16 Oct 2023 12:56:19 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3938B1BDA for ; Mon, 16 Oct 2023 09:52:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=+K+H6P5ca06ze5jNAi7+j/eV/kQqkOwYTk279J4BMsk=; b=VnvWKzb8GvEO+SpPOl7tcHqHxv 5e247SODqOQFoAo6il1rena7v99LKIrrYTa9mmHzDV57kak5eLwW/3SV5Du1wk4DRL9LvEHFhyfuD +OuckGbgM4tCDpf6Hvs8bzBm8Uc0yjP0kilNj71H4eT4+qgIlpoZe/5p3QQjLlus82xjxvuARfdc5 /rjKI87L/HNe7XjLbyj6Onp67mKmxkAh72cmM0hCTTK17jP4WO6XVkzHfLXUIw3i9ohTcCu+YPvTn fR8AIh6OgO+mtKYUnZc/SE0hocf9QU0syq52tlsClm3BRoWxoVWkqBXuxZOXC3eA0EDhmFh2nrbFv PR6TLIaw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1qsQp6-007CyA-Nb; Mon, 16 Oct 2023 16:52:08 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 63969300513; Mon, 16 Oct 2023 18:52:08 +0200 (CEST) Date: Mon, 16 Oct 2023 18:52:08 +0200 From: Peter Zijlstra To: Steven Rostedt Cc: Youssef Esmat , LKML , bsegall@google.com, mingo@kernel.org, vincent.guittot@linaro.org, juri.lelli@redhat.com, dietmar.eggemann@arm.com, mgorman@suse.de, bristot@redhat.com, corbet@lwn.net, qyousef@layalina.io, chris.hyser@oracle.com, patrick.bellasi@matbug.net, pjt@google.com, pavel@ucw.cz, qperret@google.com, tim.c.chen@linux.intel.com, joshdon@google.com, timj@gnu.org, kprateek.nayak@amd.com, yu.c.chen@intel.com, joel@joelfernandes.org, efault@gmx.de, tglx@linutronix.de, wuyun.abel@bytedance.com Subject: Re: [PATCH] sched/eevdf: Toggle eligibility through sched_feat Message-ID: <20231016165208.GH33217@noisy.programming.kicks-ass.net> References: <20231013030213.2472697-1-youssefesmat@chromium.org> <20231015104428.GA11840@noisy.programming.kicks-ass.net> <20231016112851.5cc0ccad@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231016112851.5cc0ccad@gandalf.local.home> X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Mon, 16 Oct 2023 09:56:44 -0700 (PDT) On Mon, Oct 16, 2023 at 11:28:51AM -0400, Steven Rostedt wrote: > The main point is, our testing is not around any single benchmark that we > are trying to make happy. We really are looking at what makes the user base > run better in the real world. This is a key (har-har) performance indicator for you guys though, I've seen it mentioned before (with the core-scheduling crud IIRC). As such it would be good to capture in a stand alone program and share.