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=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS autolearn=ham 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 963EDC65BAF for ; Wed, 12 Dec 2018 23:06:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5542B20672 for ; Wed, 12 Dec 2018 23:06:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=telus.net header.i=@telus.net header.b="3lpwXmDA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5542B20672 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=telus.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728470AbeLLXGh (ORCPT ); Wed, 12 Dec 2018 18:06:37 -0500 Received: from cmta18.telus.net ([209.171.16.91]:60097 "EHLO cmta18.telus.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726214AbeLLXGg (ORCPT ); Wed, 12 Dec 2018 18:06:36 -0500 Received: from dougxps ([173.180.45.4]) by cmsmtp with SMTP id XDaKgx6kKiBO5XDaLgWVjh; Wed, 12 Dec 2018 16:06:35 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telus.net; s=neo; t=1544655995; bh=A6sRBMfO3IwSBN/EOo27nCYnJ4SE/L+u593WIJNBa4Y=; h=From:To:Cc:References:In-Reply-To:Subject:Date; b=3lpwXmDAtTEQFKQW5qJRaOElfLvxawHAAeRApN2+5mNrXaOY++I2anI5sAcMxZpC+ 31JzN0/5WJA/NDX8p4GZtRsuhlNNGsn6KqnhRQKXhvQDxhlNWJi7G8aj+M5ZkimM4J p5IgiDBp0NoHX0d/m3vhDJ8nX8uAgvov4SnjGy8oYkny5Eo7flUI/o+4MaOZDegYd3 TrtjUmykcb1v3c9Z9whM0egyKv7MlHvdw8Gxvcrdzp+2csOYkKCydfPcFEs9pazNIH QzBCAiHGPDPf/Wa/4TkU1zJb2Aga6TiZSyud8CvxoA+Ho0ZyogS3FLeFXSUcO/t3iI LZPnpRt71bj7Q== X-Authority-Analysis: v=2.3 cv=d5AkNirE c=1 sm=1 tr=0 a=zJWegnE7BH9C0Gl4FFgQyA==:117 a=zJWegnE7BH9C0Gl4FFgQyA==:17 a=Pyq9K9CWowscuQLKlpiwfMBGOR0=:19 a=IkcTkHD0fZMA:10 a=O_trBvZXBQXvV-bKK-cA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=QEXdDO2ut3YA:10 From: "Doug Smythies" To: "'Paul Menzel'" Cc: , "'LKML'" , "'Srinivas Pandruvada'" , "'Len Brown'" , "Doug Smythies" References: XCF0g8mvUQvFWXCF1gj1RM In-Reply-To: XCF0g8mvUQvFWXCF1gj1RM Subject: RE: intel_pstate: Lowest frequency not reached with Intel i7-6700 Date: Wed, 12 Dec 2018 15:06:30 -0800 Message-ID: <000701d4926f$533eb270$f9bc1750$@net> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Content-Language: en-ca Thread-Index: AdSSY0xL7OYJgTiHSHOhB+La+iB2zgACm1CA X-CMAE-Envelope: MS4wfJnJSdnrzAYRUeUdQxe7QVFZQ/9B4Bmz4ASRloJKD1zAFMnvJ0D9YheWJx2e5W9NwJ2MCPpSFvpyGTqBlaYlnOie50pLOpuadOudYvfCci7E5uAnejmL jTeoqGsNTqndtDbREiFu8aiTRVYpxiv7ztRtmF6EBT546J5tGchAz0IOn5eCJRlVBKaEYe6V6efZTju0U0cpmE9mSQv8OBhyTDj36ExQBqeb4OfnG0J2Ozj0 4mUpyBJdKRiD1VpGysn4EUvGaXJ362WvsQ3rxzPF4HQO6iguAOO/4dgd4IabzRp1eYLSAVwk1HSGIWMiNF6y6EVPrDGaz8iNRtUvfcTZpFxynzs4cxOOFdhP dsisO0qw Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2018.12.12 13:40 Paul Menzel wrote: > Using *powersave* as P-state selection algorithm, on an idle system Define "idle system". If your computer is running a GUI, or is even a server without a GUI but with many services running, then "idle" really isn't. Below is from my test server, with many services disabled, so "idle" really is quite "idle" doug@s15:~/temp$ sudo turbostat --Summary --quiet --show = Busy%,Bzy_MHz,PkgTmp,PkgWatt --interval 15 Busy% Bzy_MHz PkgTmp PkgWatt 0.01 1608 27 3.71 0.01 1619 27 3.71 0.01 1600 28 3.71 0.01 1600 28 3.70 Note that p state 16 (1600 MHz) is the minimum for my older i7-2600k = processor. > Shouldn=E2=80=99t it go down until 800 MHz? We would need some actual busy information, turbostat is the recommended = tool, to know for sure. ... Doug