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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 7EC98C2BB9A for ; Thu, 17 Dec 2020 15:27:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4745A23976 for ; Thu, 17 Dec 2020 15:27:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728256AbgLQP1g (ORCPT ); Thu, 17 Dec 2020 10:27:36 -0500 Received: from cmta19.telus.net ([209.171.16.92]:48861 "EHLO cmta19.telus.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725468AbgLQP1g (ORCPT ); Thu, 17 Dec 2020 10:27:36 -0500 Received: from dougxps ([173.180.45.4]) by cmsmtp with SMTP id pvB3kJJksc2CmpvB5kByfT; Thu, 17 Dec 2020 08:26:54 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telus.net; s=neo; t=1608218814; bh=gn1Ozcf+oE/XsOrDMBv0LVfF/+YtnXFYm4e/X6F1zAw=; h=From:To:Cc:References:In-Reply-To:Subject:Date; b=1qsfysUuhVWf/4b6YiFVsos2QN83/rLyLZ0dw0Tob3fuuRZL+1FLY+wo/SIuVdQRF cRigyjTy6oJ3LX36STCR7g2uBws7pO/fONnf8DH03OzasCFlf+n8+9L5bm04DtOmyN C4uNcfoChj2vO7TBd2AyBQ/ngH/DDlxGqOt0XB81PXummEs7apU08dSKfwsbPL88/c iaOGWGz2EXJXjPPRXnJTgO/LQAceK8aSN8YsAMHunwHEqqCx07KQwKwU5iz6AbJeK+ XAfxm9rzekxEGsObLkKY53Cc/NrWI7eA5/7gLV4SGl3SJ3ifCzToh3yMchqjP5At6s wPFwhdOkajLfQ== X-Telus-Authed: none X-Authority-Analysis: v=2.4 cv=NMEQR22g c=1 sm=1 tr=0 ts=5fdb78be a=zJWegnE7BH9C0Gl4FFgQyA==:117 a=zJWegnE7BH9C0Gl4FFgQyA==:17 a=Pyq9K9CWowscuQLKlpiwfMBGOR0=:19 a=kj9zAlcOel0A:10 a=8MYkT9o3-EtoCmCZqnsA:9 a=CjuIK1q_8ugA:10 From: "Doug Smythies" To: "'Rafael J. Wysocki'" Cc: "'LKML'" , "'Viresh Kumar'" , "'Srinivas Pandruvada'" , "'Peter Zijlstra'" , "'Giovanni Gherdovich'" , "'Linux PM'" References: <20360841.iInq7taT2Z@kreacher> <3827230.0GnL3RTcl1@kreacher> In-Reply-To: <3827230.0GnL3RTcl1@kreacher> Subject: RE: [PATCH v2 0/3] cpufreq: Allow drivers to receive more information from the governor Date: Thu, 17 Dec 2020 07:26:49 -0800 Message-ID: <000901d6d489$0c26dd50$247497f0$@net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Content-Language: en-ca Thread-Index: AdbSVRA1dBdX0amaSX+eUEzc0wtxAAAF+Myg X-CMAE-Envelope: MS4xfGMNTiXTXTj89gw47y4v0BflAT2x3pkJKtIlYplihKOM21/ediYlkECoDDERqDUTsKlfLXZ54a4BgYvlaYdn1lYRJ/CggHJsRXnE793CaCoiExApGz92 CRdZZxItuloaqyKtG68ZcsBuUj0uS0ZRRdxHo5Rfva/RFcyEXKMmIymzf4HwKPL70Lv6o9k+0ebJzQ4Mdt25oKhPxX77uOhm16tuhmCyD8lcxoY3Rs8n/+ws DHUwkr1Hc9NeFJgBocdu/I1Vq3xsE8JKWK80ACsBuYtxeJFRwqePNoG3nxH9mQLPN8yYNlA0k4pRLi6f1ftlfH6ZvshB5qnm/6rGPpMdVwqQPWf6o5G3UZ+q rSuzb0zqa/rjItHZ1cZ/JrnLsajFWVdGewlFJKUBHyIkiLhMhno= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020.12.14 12:02 Rafael J. Wysocki wrote: > Hi, Hi Rafael, V2 test results below are new, other results are partially re-stated: For readers that do not want to read on, I didn't find anything different than with the other versions. This was more just due diligence. Legend: hwp: Kernel 5.10-rc6, HWP enabled; intel_cpufreq rfc (or rjw): Kernel 5.10-rc6 + this patch set, HWP enabled; intel_cpu-freq; schedutil no-hwp: Kernel 5.10-rc6, HWP disabled; intel_cpu-freq acpi (or acpi-cpufreq): Kernel 5.10-rc6, HWP disabled; acpi-cpufreq; schedutil patch: Kernel 5.10-rc7 + V1 patch set, HWP enabled; intel_cpu-freq; schedutil v2: Kernel 5.10-rc7 + V2 patch set, HWP enabled; intel_cpu-freq; schedutil Fixed work packet, fixed period, periodic workflow, load sweep up/down: load work/sleep frequency: 73 Hertz: hwp: Average: 12.00822 watts rjw: Average: 10.18089 watts no-hwp: Average: 10.21947 watts acpi-cpufreq: Average: 9.06585 watts patch: Average: 10.26060 watts v2: Average: 10.50444 load work/sleep frequency: 113 Hertz: hwp: Average: 12.01056 rjw: Average: 10.12303 no-hwp: Average: 10.08228 acpi-cpufreq: Average: 9.02215 patch: Average: 10.27055 v2: Average: 10.31097 load work/sleep frequency: 211 Hertz: hwp: Average: 12.16067 rjw: Average: 10.24413 no-hwp: Average: 10.12463 acpi-cpufreq: Average: 9.19175 patch: Average: 10.33000 v2: Average: 10.39811 load work/sleep frequency: 347 Hertz: hwp: Average: 12.34169 rjw: Average: 10.79980 no-hwp: Average: 10.57296 acpi-cpufreq: Average: 9.84709 patch: Average: 10.67029 v2: Average: 10.93143 load work/sleep frequency: 401 Hertz: hwp: Average: 12.42562 rjw: Average: 11.12465 no-hwp: Average: 11.24203 acpi-cpufreq: Average: 10.78670 patch: Average: 10.94514 v2: Average: 11.50324 Serialized single threaded via PIDs per second method: A.K.A fixed work packet, variable period Results: Execution times (seconds. Less is better): no-hwp: performance: Samples: 382 ; Average: 10.54450 ; Stand Deviation: 0.01564 ; Maximum: 10.61000 ; Minimum: 10.50000 schedutil: Samples: 293 ; Average: 13.73416 ; Stand Deviation: 0.73395 ; Maximum: 15.46000 ; Minimum: 11.68000 acpi: Samples: 253 ; Average: 15.94889 ; Stand Deviation: 1.28219 ; Maximum: 18.66000 ; Minimum: 12.04000 hwp: schedutil: Samples: 380 ; Average: 10.58287 ; Stand Deviation: 0.01864 ; Maximum: 10.64000 ; Minimum: 10.54000 patch: Samples: 276 ; Average: 14.57029 ; Stand Deviation: 0.89771 ; Maximum: 16.04000 ; Minimum: 11.68000 rfc: Samples: 271 ; Average: 14.86037 ; Stand Deviation: 0.84164 ; Maximum: 16.04000 ; Minimum: 12.21000 v2: Samples: 274 ; Average: 14.67978 ; Stand Deviation: 1.03378 ; Maximum: 16.07000 ; Minimum: 11.43000 Power (watts. More indicates higher CPU frequency and better performance. Sample time = 1 second.): no-hwp: performance: Samples: 4000 ; Average: 25.41355 ; Stand Deviation: 0.22156 ; Maximum: 26.01996 ; Minimum: 24.08807 schedutil: Samples: 4000 ; Average: 12.58863 ; Stand Deviation: 5.48600 ; Maximum: 25.50934 ; Minimum: 7.54559 acpi: Samples: 4000 ; Average: 9.57924 ; Stand Deviation: 5.41157 ; Maximum: 25.06366 ; Minimum: 5.51129 hwp: schedutil: Samples: 4000 ; Average: 25.24245 ; Stand Deviation: 0.19539 ; Maximum: 25.93671 ; Minimum: 24.14746 patch: Samples: 4000 ; Average: 11.07225 ; Stand Deviation: 5.63142 ; Maximum: 24.99493 ; Minimum: 3.67548 rfc: Samples: 4000 ; Average: 10.35842 ; Stand Deviation: 4.77915 ; Maximum: 24.95953 ; Minimum: 7.26202 v2: Samples: 4000 ; Average: 10.98284 ; Stand Deviation: 5.48859 ; Maximum: 25.76331 ; Minimum: 7.53790