From patchwork Sun Jan 14 00:40:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ian Eure X-Patchwork-Id: 58856 Return-Path: X-Original-To: patchwork@mira.cbaines.net Delivered-To: patchwork@mira.cbaines.net Received: by mira.cbaines.net (Postfix, from userid 113) id 1A2D927BBE9; Sun, 14 Jan 2024 00:41:36 +0000 (GMT) X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on mira.cbaines.net X-Spam-Level: X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL, SPF_HELO_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mira.cbaines.net (Postfix) with ESMTPS id 598EA27BBE2 for ; Sun, 14 Jan 2024 00:41:34 +0000 (GMT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOoYj-0007fK-Ok; Sat, 13 Jan 2024 19:41:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rOoYh-0007er-P1 for guix-patches@gnu.org; Sat, 13 Jan 2024 19:41:03 -0500 Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rOoYh-0004Mu-HD for guix-patches@gnu.org; Sat, 13 Jan 2024 19:41:03 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1rOoYg-0000sm-6P for guix-patches@gnu.org; Sat, 13 Jan 2024 19:41:02 -0500 X-Loop: help-debbugs@gnu.org Subject: [bug#68309] [PATCH 1/2] gnu: Add powertop-service-type. 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Change-Id: I1c5ef855526458ad54f62ca6e755da82acce1c4a --- doc/guix.texi | 24 ++++++++++++++++++++++++ gnu/services/pm.scm | 43 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 66 insertions(+), 1 deletion(-) diff --git a/doc/guix.texi b/doc/guix.texi index 811edd0bf7..a48aa655ae 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -34798,6 +34798,30 @@ Ignore cpuid check for supported CPU models. @item @code{thermald} (default: @var{thermald}) Package object of thermald. +@cindex powertop +@cindex Power tuning with PowerTOP +@subsubheading PowerTOP + +The @code{(gnu services pm)} module provides a Guix service definition +for PowerTOP. When started, it tunes kernel settings to reduce power +consumption. + +@defvar powertop-service-type +The service type for PowerTOP. No configuration is necessary. When the +service starts, it executes @code{powertop --auto-tune}. + +@lisp +(service powertop-service-type) + +@end defvar + +Available @code{powertop-configuration} fields are: + +@deftypevr {@code{powertop-configuration} parameter} package powertop +The PowerTOP package. Defaults to @code{powertop}. + +@end deftypevr + @end table @end deftp diff --git a/gnu/services/pm.scm b/gnu/services/pm.scm index 3daf484cc1..13a153ab1d 100644 --- a/gnu/services/pm.scm +++ b/gnu/services/pm.scm @@ -1,5 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2017 Mathieu Othacehe +;;; Copyright © 2024 Ian Eure ;;; ;;; This file is part of GNU Guix. ;;; @@ -17,6 +18,8 @@ ;;; along with GNU Guix. If not, see . (define-module (gnu services pm) + #:use-module (srfi srfi-1) + #:use-module (ice-9 match) #:use-module (guix gexp) #:use-module (guix packages) #:use-module (guix records) @@ -31,7 +34,10 @@ (define-module (gnu services pm) tlp-configuration thermald-configuration - thermald-service-type)) + thermald-service-type + + powertop-configuration + powertop-service-type)) (define (uglify-field-name field-name) (let ((str (symbol->string field-name))) @@ -466,3 +472,38 @@ (define thermald-service-type (default-value (thermald-configuration)) (description "Run thermald, a CPU frequency scaling service that helps prevent overheating."))) + + + +;;; +;;; powertop +;;; +;;; Calls `powertop --auto-tune' to reduce energy consumption. + + + +(define-configuration powertop-configuration + (powertop (package powertop) "PowerTOP package to use.")) + +(define powertop-shepherd-service + (match-lambda + (($ powertop) + (shepherd-service + (documentation "Tune kernel power settings at boot.") + (provision '(powertop powertop-auto-tune)) + (requirement '(user-processes)) + (one-shot? #t) + (start #~(lambda _ + (zero? (system* #$(file-append powertop "/sbin/powertop") + "--auto-tune")))))))) + +(define powertop-service-type + (service-type + (name 'powertop) + (extensions + (list + (service-extension shepherd-root-service-type + (compose list powertop-shepherd-service)))) + (compose concatenate) + (default-value (powertop-configuration)) + (description "Tune power-related kernel parameters to reduce energy consumption.")))