1 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import logging, time 6 from autotest_lib.client.bin import test 7 from autotest_lib.client.cros.power import power_status 8 9 10 class power_StatsCPUFreq(test.test): 11 version = 1 12 13 14 def run_once(self, test_time=60): 15 cpufreq_stats = power_status.CPUFreqStats() 16 17 # log CPU frequency stats since boot 18 cpufreq_stats.incremental = False 19 current_stats = cpufreq_stats.refresh() 20 logging.info('CPUFreq stats since boot:\n %s', current_stats) 21 22 # sleep for some time to allow the system to go into idle state 23 time.sleep(test_time) 24 25 # get updated CPU frequency stats 26 cpufreq_stats.incremental = True 27 current_stats = cpufreq_stats.refresh() 28 logging.info('CPUFreq stats in the last %d seconds :\n %s', 29 test_time, current_stats) 30 31
