blob: 377bc1cbb98f439ad63fc407924e0b89e688717f [file] [log] [blame]
# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import logging, numpy, random, time
from autotest_lib.client.bin import test
from autotest_lib.client.common_lib import error
from autotest_lib.client.cros import power_suspend, sys_power
class power_SuspendStress(test.test):
version = 1
def initialize(self, duration, method='default', init_delay=0,
tolerated_aborts=0, breathing_time=5, min_suspend=0):
duration: total run time of the test
method: suspend method to use... available options:
'default': make a RequestSuspend D-Bus call to powerd
'idle': wait for idle suspend... use with dummy_IdleSuspend
init_delay: wait this many seconds before starting the test to give
parallel tests time to get started
tolerated_aborts: only fail test for SuspendAborts if they surpass
this threshold
breathing_time: wait this many seconds after every third suspend to
allow Autotest/SSH to catch up
min_suspend: suspend durations will be chosen randomly out of the
interval between min_suspend and min_suspend + 3
self._duration = duration
self._init_delay = init_delay
self._tolerated_aborts = tolerated_aborts
self._min_suspend = min_suspend
self._breathing_time = breathing_time
self._method = {
'default': sys_power.do_suspend,
'idle': sys_power.idle_suspend,
def _do_suspend(self):
self._suspender.suspend(random.randint(0, 3) + self._min_suspend)
def run_once(self):
self._suspender = power_suspend.Suspender(
self.resultsdir, method=self._method)
timeout = time.time() + self._duration
while time.time() < timeout:
time.sleep(random.randint(0, 3))
time.sleep(random.randint(0, 3))
def postprocess_iteration(self):
if self._suspender.successes:
keyvals = {'suspend_iterations': len(self._suspender.successes)}
for key in self._suspender.successes[0]:
values = [result[key] for result in self._suspender.successes]
keyvals[key + '_mean'] = numpy.mean(values)
keyvals[key + '_stddev'] = numpy.std(values)
keyvals[key + '_min'] = numpy.amin(values)
keyvals[key + '_max'] = numpy.amax(values)
if self._suspender.failures:
total = len(self._suspender.failures)
abort = kernel = firmware = early = 0
for failure in self._suspender.failures:
if type(failure) is sys_power.SuspendAbort: abort += 1
if type(failure) is sys_power.KernelError: kernel += 1
if type(failure) is sys_power.FirmwareError: firmware += 1
if type(failure) is sys_power.EarlyWakeupError: early += 1
if abort <= self._tolerated_aborts and total == abort:
logging.warn('Ignoring %d aborted suspends (below threshold).',
if total == 1:
# just throw it as is, makes aggregation on dashboards easier
raise self._suspender.failures[0]
raise error.TestFail('%d suspend failures in %d iterations (%d '
'aborts, %d kernel warnings, %d firmware errors, %d early '
'wakeups)' % (total, total + len(self._suspender.successes),
abort, kernel, firmware, early))
def cleanup(self):
# clean this up before we wait ages for all the log copying to finish...