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 00C52C433F5 for ; Wed, 23 Mar 2022 02:09:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231695AbiCWCL0 (ORCPT ); Tue, 22 Mar 2022 22:11:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231596AbiCWCLZ (ORCPT ); Tue, 22 Mar 2022 22:11:25 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 91972580C7 for ; Tue, 22 Mar 2022 19:09:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 344CF614AA for ; Wed, 23 Mar 2022 02:09:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 92967C36AE2 for ; Wed, 23 Mar 2022 02:09:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1648001395; bh=TGByKuChoT4UH/eNjvUJXqaiNNJLzPXPKK2+u++CBOI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=BSZ3dSBm9vucC7mklL8cfDZjFp9zdzmt8/SasQpMZM90Reza7PWLlgHA5DD407tyy ae2jBY/9mHzfRamEq3DsnFCJdiX5g5AlEOTApPcjaTXhzvjW1+ej8FCvXUwYu2WTXB xCLyrcMiuqq7RD5jWupqpiqrAwRvK4vhgL9RbM41mp4RSA8E89ooTFrdX9fsO2z/6c 7a9wbw3L6lcUMc8ja0d+S3/Iog17/BstfKRwqLXd3Lpa5HkvnmxdcLsADmzgWQYKbc oI0utSYCCEjE0zcaTE/NSkscheeS+BYfyVuSpYmuqoBtMvSja7OH4rDvl83n82jnX2 E/CgPnmsB6Rfw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 764C9C05FE2; Wed, 23 Mar 2022 02:09:55 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 215729] amd-pstate driver has a much higher idle power consumption for a desktop Zen 3 CPU Date: Wed, 23 Mar 2022 02:09:55 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Power Management X-Bugzilla-Component: cpufreq X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: huangrui@mail.ustc.edu.cn X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: linux-pm@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D215729 Huang Rui (huangrui@mail.ustc.edu.cn) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |huangrui@mail.ustc.edu.cn --- Comment #3 from Huang Rui (huangrui@mail.ustc.edu.cn) --- (In reply to Artem S. Tashkinov from comment #0) > I have a Ryzen 7 5800X CPU. >=20 > With the acpi-cpufreq driver the CPU idles around 20W, frequencies are in > the range of 2.2-2.8GHz. >=20 > The very same system with the amd-pstate driver idles around 25W frequenc= ies > are in the range of 3.9-4.75GHz. >=20 > This doesn't look right. >=20 > Changing governor from ondemand to powersave reduces idle power consumpti= on > to around 21.5W (still higher than with acpi-cpufreq) but this obvious > completely destroys performance. Thanks to report the issue. Could you please dump the print of "lscpu" and = use the latest bleeding-edge source code include the CPUPower support (https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/log/?h= =3Dbleeding-edge) to print "cpupower frequency-info"? Thanks, Ray --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=