| #!/bin/bash |
| #/******************************************************************************* |
| # Copyright (C) 2011, Linaro Limited. |
| # |
| # This file is part of PM QA. |
| # |
| # All rights reserved. This program and the accompanying materials |
| # are made available under the terms of the Eclipse Public License v1.0 |
| # which accompanies this distribution, and is available at |
| # http://www.eclipse.org/legal/epl-v10.html |
| # |
| # Contributors: |
| # Torez Smith <torez.smith@linaro.org> (IBM Corporation) |
| # - initial API and implementation |
| #******************************************************************************/ |
| |
| |
| ### |
| # For each available governor, can we change the cpu governor to |
| # that new value? Sleep a few seconds after changing to allow system |
| # to settle down. |
| ### |
| |
| for i in `cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors` |
| do |
| echo $i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor |
| if [ $? != 0 ]; then |
| echo "FAIL can not write governor for $i" |
| exit -1 |
| fi |
| sleep 5 |
| if [ `cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor` != $i ]; then |
| echo "FAIL could not change governor to $i" |
| exit -1 |
| fi |
| done |
| |
| echo PASS |
| |
| |