| # 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, idle=False, init_delay=0, min_suspend=0): |
| """ |
| duration: total run time of the test |
| idle: use sys_power.idle_suspend method (use with dummy_IdleSuspend) |
| init_delay: wait this many seconds before starting the test to give |
| parallel tests time to get started |
| 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._min_suspend = min_suspend |
| self._method = sys_power.idle_suspend if idle else sys_power.do_suspend |
| |
| |
| def run_once(self): |
| time.sleep(self._init_delay) |
| 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)) |
| self._suspender.suspend(random.randint(0, 3) + self._min_suspend) |
| |
| |
| 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) |
| self.write_perf_keyval(keyvals) |
| if self._suspender.failures: |
| total = len(self._suspender.failures) |
| iterations = len(self._suspender.successes) + total |
| timeout = kernel = firmware = spurious = 0 |
| for failure in self._suspender.failures: |
| if type(failure) is sys_power.SuspendTimeout: timeout += 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.SpuriousWakeupError: spurious += 1 |
| if total == kernel + timeout: |
| raise error.TestWarn('%d non-fatal suspend failures in %d ' |
| 'iterations (%d timeouts, %d kernel warnings)' % |
| (total, iterations, timeout, kernel)) |
| 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 ' |
| 'timeouts, %d kernel warnings, %d firmware errors, %d ' |
| 'spurious wakeups)' % |
| (total, iterations, timeout, kernel, firmware, spurious)) |
| |
| |
| def cleanup(self): |
| # clean this up before we wait ages for all the log copying to finish... |
| self._suspender.finalize() |
