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 DB684ECAAD3 for ; Mon, 19 Sep 2022 09:01:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230035AbiISJBa (ORCPT ); Mon, 19 Sep 2022 05:01:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229968AbiISJB2 (ORCPT ); Mon, 19 Sep 2022 05:01:28 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6461012627 for ; Mon, 19 Sep 2022 02:01:27 -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 ams.source.kernel.org (Postfix) with ESMTPS id 199C9B810C5 for ; Mon, 19 Sep 2022 09:01:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id C5580C433C1 for ; Mon, 19 Sep 2022 09:01:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663578084; bh=2Hfswh1cCyUTKSgtcsm1JDwY+bv2sY2tx7+KjoTlRro=; h=From:To:Subject:Date:In-Reply-To:References:From; b=uHDsium3ESFxgq94EGkwIrU2T0gj3BoSFHNOwXZS+JcUoGMZYckEUvLpaSZu2+rpF QxM9nQW73dSNj+Y9LbHZ+9o08V6Ck46Vy44Ki+MJpzWOAw48BgP3z3osKw4+OYug4K 7W+CSM22kbiwdNXbxStqbZykfTq7wE6CBloEB5mPy3SAPtrTOlRnPV9NH0yvAG4UX+ bqP45tkWuNFjQaVR7if3kg+laDm7VK7UE/a3mieKzh7IadsjqULK9gj7QoEH+0LD9d RqnH5v3M21ilDahkQRUrjitmJb3wYTGyeA6PB2UflZmpFLBRdrUXdTFH+JRUhWCleB mUFzBe8nHiA6A== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id AD8F0C433E4; Mon, 19 Sep 2022 09:01:24 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 216204] ideapad-laptop: Testing for DYTC platform-profile support Date: Mon, 19 Sep 2022 09:01:24 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Platform_x86 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: low X-Bugzilla-Who: jwrdegoede@fedoraproject.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: ANSWERED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cc resolution 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: platform-driver-x86@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D216204 Hans de Goede (jwrdegoede@fedoraproject.org) changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |jwrdegoede@fedoraproject.or | |g Resolution|--- |ANSWERED --- Comment #1 from Hans de Goede (jwrdegoede@fedoraproject.org) --- Sorry for the slow reply. Note the kernel now allows enabling V4 DYTC support from the kernel commandline, by passing: ideapad_laptop.allow_v4_dytc=3D1 on the kernel commandline. As for testing this: 1. Pass the kernel cmdline parameter 2. Check that switching the profile in GNOME results in the contents of /sys/firmware/acpi/platform_profile changing 3. Run a heavy workload, e.g. a make -j8 kernel compile 4. Monitor the power-consumption in powertop (while running from battery) 5. Change the profile Step 5. should then result in significant changes of consumed power (this m= ay take some minutes to register). Without platform_profile support the GNOME setting only changes the pstate governer profile, so things will ramp up slower. The actual platform_profi= le setting should change the RAPL values / should change the maximum energy consumption (programmable TPD) of the processor. Note that this may only take effect when combined with running thermal-prof= iled with the experimental Intel DPTF support enabled. Since there is not really a bug to fix here I'm going to close this bug rep= ort now. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=