From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933006AbZJ3Wyw (ORCPT ); Fri, 30 Oct 2009 18:54:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933046AbZJ3Wyf (ORCPT ); Fri, 30 Oct 2009 18:54:35 -0400 Received: from kroah.org ([198.145.64.141]:38985 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933000AbZJ3Wyc (ORCPT ); Fri, 30 Oct 2009 18:54:32 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Alex Chiang , Suresh Siddha , Ingo Molnar , Greg Kroah-Hartman Subject: [PATCH 7/9] Documentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings Date: Fri, 30 Oct 2009 15:54:26 -0700 Message-Id: <1256943268-12164-7-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.6.5.1 In-Reply-To: <20091030220930.GA11297@kroah.com> References: <20091030220930.GA11297@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alex Chiang Document sched_[mc|smt]_power_savings by reading existing code and git logs. Cc: Suresh Siddha Cc: Ingo Molnar Signed-off-by: Alex Chiang Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 2ade5c0..8cdda1c 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -9,6 +9,30 @@ Description: /sys/devices/system/cpu/cpu#/ +What: /sys/devices/system/cpu/sched_mc_power_savings + /sys/devices/system/cpu/sched_smt_power_savings +Date: June 2006 +Contact: Linux kernel mailing list +Description: Discover and adjust the kernel's multi-core scheduler support. + + Possible values are: + + 0 - No power saving load balance (default value) + 1 - Fill one thread/core/package first for long running threads + 2 - Also bias task wakeups to semi-idle cpu package for power + savings + + sched_mc_power_savings is dependent upon SCHED_MC, which is + itself architecture dependent. + + sched_smt_power_savings is dependent upon SCHED_SMT, which + is itself architecture dependent. + + The two files are independent of each other. It is possible + that one file may be present without the other. + + Introduced by git commit 5c45bf27. + What: /sys/devices/system/cpu/kernel_max /sys/devices/system/cpu/offline -- 1.6.4.2