| #!/bin/sh |
| # |
| # PM-QA validation test suite for the power management on Linux |
| # |
| # Copyright (C) 2011, Linaro Limited. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License |
| # as published by the Free Software Foundation; either version 2 |
| # of the License, or (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| # |
| # Contributors: |
| # Daniel Lezcano <daniel.lezcano@linaro.org> (IBM Corporation) |
| # - initial API and implementation |
| # |
| |
| # URL : https://wiki.linaro.org/WorkingGroups/PowerManagement/Resources/TestSuite/PmQaSpecification#cpufreq_06 |
| |
| . ../include/functions.sh |
| |
| CPUCYCLE=../utils/cpucycle |
| freq_results_array="results" |
| |
| compute_freq_ratio() { |
| cpu=$1 |
| freq=$2 |
| |
| set_frequency $cpu $freq |
| |
| result=$($CPUCYCLE $cpu) |
| if [ $? -ne 0 ]; then |
| return 1 |
| fi |
| |
| value=$(echo $result $freq | awk '{ printf "%.3f", $1 / $2 }') |
| eval $freq_results_array$index=$value |
| eval export $freq_results_array$index |
| index=$((index + 1)) |
| } |
| |
| compute_freq_ratio_sum() { |
| res=$(eval echo \$$freq_results_array$index) |
| sum=$(echo $sum $res | awk '{ printf "%f", $1 + $2 }') |
| index=$((index + 1)) |
| } |
| |
| __check_freq_deviation() { |
| res=$(eval echo \$$freq_results_array$index) |
| if [ ! -z "$res" ]; then |
| # compute deviation |
| dev=$(echo $res $avg | awk '{printf "%.3f", (($1 - $2) / $2) * 100}') |
| # change to absolute |
| dev=$(echo $dev | awk '{ print ($1 >= 0) ? $1 : 0 - $1}') |
| index=$((index + 1)) |
| res=$(echo $dev | awk '{printf "%f", ($dev > 5.0)}') |
| |
| if [ "$res" = "1" ]; then |
| return 1 |
| fi |
| else |
| return 1 |
| fi |
| |
| return 0 |
| } |
| |
| check_freq_deviation() { |
| |
| cpu=$1 |
| freq=$2 |
| check "deviation for frequency $(frequnit $freq)" __check_freq_deviation |
| } |
| |
| check_deviation() { |
| |
| cpu=$1 |
| set_governor $cpu userspace |
| index=0 |
| for_each_frequency $cpu compute_freq_ratio |
| index=0;sum=0 |
| for_each_frequency $cpu compute_freq_ratio_sum |
| |
| avg=$(echo $sum $index | awk '{ printf "%.3f", $1 / $2}') |
| index=0 |
| for_each_frequency $cpu check_freq_deviation |
| } |
| |
| supported=$(cat $CPU_PATH/cpu0/cpufreq/scaling_available_governors | grep "userspace") |
| if [ -z "$supported" ]; then |
| log_skip "userspace not supported" |
| return 0 |
| fi |
| |
| save_governors |
| save_frequencies |
| |
| trap "restore_frequencies; restore_governors; sigtrap" HUP INT TERM |
| |
| for_each_cpu check_deviation |
| |
| restore_frequencies |
| restore_governors |
| test_status_show |